Technical characteristics of tweeters in castle speakers. About the company. Castle product range in the Hi-Fi design store

The sound is absolutely not tiring, even if you listen to music like Dream Theater all day long

• Manufacturer Castle Acoustics
• Made in China
• Price, rub. 27000
• www.castle.uk.com

ACQUAINTANCE. The Castle brand has recently been owned by the British concern IAG Ltd. (International Audio Group), which also includes such well-known manufacturers as Audiolab, Mission, Quad, Wharfedale, etc. The Castle Acoustics company itself has been specializing in the production of speaker systems for a wide variety of purposes for more than 35 years. She independently develops dynamic heads and prefers unconventional design solutions. One of them, Twin Pipe Technology, is implemented in the older, fifth model from the new Knight line. This is a quarter-wave resonator, which allows you to expand the bass range without using a bass reflex and, accordingly, get a faster response of the diffusers to the incoming signal. In addition, this design allows for maximum simplification of separation filters.

Before installing the speakers, you will need to screw the base and massive spikes, packaged separately, to them. Between the body, in the bottom of which a large hole is made, and the base, gaskets are installed, i.e. the system is not sealed.

150mm drivers with carbon fiber diffusers and a phase-equalizing “bullet” in the center are used as bass and midrange drivers. The one-inch soft dome tweeter is mounted in the center of a wide flange that is slightly concave inward.

The quality of workmanship and finishing of the case is beyond any criticism, externally the systems give the impression of a solid and expensive thing.

LISTENING. It is clear why some manufacturers prefer unconventional acoustic design such as a labyrinth or Transmission Line. The sound of such speakers seems more harmonious and comfortable, it does not tire at all, even if you listen to music like Dream Theater all day long. Knight 5 gave this tough genre a completely adequate interpretation - with the highest intelligibility, an abundance of timbral components and a three-dimensional, also very detailed sound stage. Despite the noticeably weakened lower bass, the sound is spacious and assertive. At the same time, it does not load, mainly due to the natural, not drawn-out attack and detailed, but not overly contrasting, elaboration of the timbre of acoustic and electronic instruments. True, the overall tonal balance seems slightly shifted upward, but there is no sharpness or noticeable emphasis on the highs. I really liked how the tweeters work - they not only convey all the richness of the sound of the cymbals, but also create an aura around them, a light cloud of overtones. Accordingly, the atmosphere turns out to be light and airy, which is especially noticeable in chamber recordings. The piano is absolutely reliable; the smallest nuances are noticeable in the sound picture - rustling sounds, the clatter of keys, sounds coming from the hall. When a bass drum hits, you can feel the vibration of the membrane, turning into a smoothly decaying aftersound.

PLEASED

High intelligibility, transparent upper range of timbres, comfortable and musical sound in general.

DISAPPOINTED

The overall tonal balance is slightly shifted upward.

Technical commentary on Castle Knight 1 - frequency response deviations for most of the graph remain within a 5 dB wide corridor. At high frequencies, the graph leaves it and smoothly rises by almost 5 dB, which slightly shifts the tonal balance towards the high frequencies. It is curious that at 30 degrees the picture changes little; the drop is felt only at the highest frequencies. The behavior of the frequency response graph remains similar at large angles, which means that the directionality of the Castle Knight 1 column is wide. At low frequencies nothing unusual is observed. The lower frequency limit (64 Hz) turned out to be higher than stated (46 Hz), but in our test this is an average result. The distortion level of these speakers remains below 1% over a wide frequency range: from 70 Hz to 20 kHz. High volume slightly increases the level of distortion in the low-frequency region. In general, the dependence of SOI on loudness is weak. The system impedance varies over a fairly wide range, which will not have a very favorable effect on the compatibility of the Castle Knight 1 speakers with inexpensive amplifiers. The minimum value is 4.6 Ohms, so there is no need to worry about overloads.

Cherry - Sourced from the forests of Northern Europe, Cherry Veneer - Cherry is a slightly reddish-brown wood shade with superb detailed grain and a good level of pattern repeatability. Often used in furniture making since the 17th century.

Castle's junior Knight Series speakers also uphold the company's brand and tradition of rich, smooth sound reproduction, while also setting a new standard for craftsmanship and value. Designed for high-end stereo systems, these speakers deliver fast, precise performance - characteristics that are critical to working together to achieve the highest level of sound.

Castle speakers have always evoked special respect. They have an English style, neatness and rigor, both in their external design and in the manner of performing music. Despite its low price, Castle Knight 1 is impeccably finished with high-quality veneer. Note that the finishing of this series is made from valuable types of wood and a total of eight options are possible. This is usually enough to choose the most suitable option for the interior.

The emitters installed in the Castle Knight 1 model occupy the surface area of ​​the front wall as efficiently as possible. The bass reflex horn is located on the rear side and is made of a plastic pipe with a small bell and a protective mesh inside. There is nothing superfluous in the design, all components are precisely adjusted and leave a favorable impression of the design.

When creating this series, special attention was paid to speed characteristics, transparency and sound accuracy. Particular credit for this goes to the fabric dome tweeter, manufactured using technology that combines the advantages of ring and dome design. At low and mid frequencies, it is assisted by a 130mm driver with a light but rigid cone and a hard plastic cap. The crossover model is designed to maintain phase synchrony of the signal for all emitters and have minimal losses. The four large metal terminals look very solid, but are located very close to each other.

Naturally, where there are castles, there are knights. The words “thoroughbred English sound” did not leave my mind when listening to “The First Knight”. This is a component of considerable sound merits. Not every, even much more expensive, acoustic system is capable of offering such a refined, refined and sophisticated sound. The price/quality ratio of this model is very attractive.

Castle Knight 1 is among the best models in the test in such an important aspect as timbre resolution. Castle's sound design is graceful, and the visual elements - lines, strokes, colorful tones - are always in focus. The dynamic range of the Castle Knight 1 model is wide, the scene is proportional, airy, and perfectly detailed. If you are a demanding listener with extensive experience in listening to live performance, then do not miss the Castle Knight 1. These are your speakers.

Castle Acoustics - acoustic systems and speakers in a wide price range, made in Britain. Castle Acoustics Corporation opened in 1973, at the same time it became the owner of the logo and name of the legendary eleventh-century fortress Skipton Castle, located in North Yorkshire, in the town of Skipton. This locality is where the company was founded. Historic traditions continue to this day in Skipton's Pennine hills, with artisanal traditions a cornerstone of the Castle philosophy, harmoniously combined with innovative advances in cabinet design and speaker manufacturing technology.

Castle products, like musical instruments, are created by the best and most talented craftsmen dedicated to what they love.

Country of origin: UK

Castle product range in the Hi-Fi design store

Speakers and acoustics Castle

Castle Acoustics Corporation opened in 1973 and became the owner of the logo and name of the legendary eleventh century fortress Skipton Castle, located in the North Yorkshire town of Skipton. It was this settlement that became the place where the company was founded. Historical traditions continue to this day in Skipton's Pennine hills, and artisanal traditions form the cornerstone of the Castle philosophy, coupled with innovative advances in cabinet design and speaker manufacturing.

Castle is now the only UK-born speaker manufacturer to manufacture its own cabinets, purchasing and bonding all cabinet cladding, designing and packaging the drivers, all under the direction of a second generation management team brought together to create a unique product.

Not much has changed in loudspeaker manufacturing and design in the past seventy years since Kellogs and Rice presented their "Notes on the Construction of a New Kind of Hornless Loudspeaker" project in 1925, setting out to realize the idea of ​​a moving-coil loudspeaker.

Oliver Lodge was one of the first to announce that it was possible to use some kind of emitter design with a moving diaphragm, and this happened back in 1890. And, it is worth noting that the design was intended mainly for telephony. Then they gave it the formidable name “Roaring Telephone”. But a few years later, the development of radio broadcasting led to the emergence of something newer that guaranteed better sound. A lot of time has passed since that day - technologies have improved, new materials have appeared, and the main changes have affected sound sources. Long-playing records, FM radio and compact discs impose stringent requirements on the initial electromechanical device - a loudspeaker equipped with a moving coil.

In the thirties, a former wool merchant opened The Wharfedale Wireless Company to produce speaker systems that could reproduce excellent quality music. Gilbert Briggs was passionate about music, so his legacy went to the modern Castle Acoustics, which is located near Wharfedale in North Yorkshire.

Before the advent of stereo in the late 50's, loudspeakers were used individually, and they were made using the same method as Castle now - especially carefully and with the help of manual labor.

Buy Castle acoustics and speakers

The advent of stereo in 1958, and with it the need for loudspeakers, led to the creation of the mass-produced enclosure that can still be seen today. The cabinets are mechanically manufactured and covered with a cheap vinyl covering that resembles wood. You can buy Catle acoustics or speakers and see for yourself.

During the period of mass craze for acoustic devices, the Wharfedale brand of Gilbert Briggs came out on top and became the largest in England, as well as the most sought-after brand of acoustics. Due to their size and the need to locate them in a residential setting, new cabinets intended for mass production have a “window” in the acoustic market that is more suitable for the appearance of modern furniture.

Castle Acoustics, based in a former woolen mill in Skipton, opened on 3 September 1973. It should be noted that this choice led to the success of the company, as a result of which a whole line of perfectly executed acoustic systems was released, which won recognition and received the proud names of the rivers and fortresses of Britain - Trent, Conway, Stirling, Clyde, etc. All products were manufactured and installed into special buildings created at Park Mill, a century-old, substantial stone building.

Twenty years later, when the people who founded the brand retired, senior Wharfedale administrators, sticking to their original beliefs, proposed bringing back the original management team. The main challenge was to take Castle into the new century according to the traditions of the craft, based on the wisdom and extensive experience of its creators. It must be said that the son of the founder, responsible for the Production Engineering equipment, continued the traditions of his father.

New management, using funds from the Lancashire Enterprise Agency, ensured Castle's growth, which led to the development of export activities, especially important for a small company. All this made it possible to provide employment in a region with a critical level of unemployment, as well as to promote Castle’s product to the most attractive markets.

At the moment, the first task of development for Castle Acoustics is the emergence of new areas of production. Castle Corporation has already developed a plan for the next three years. The first part includes an analysis of the area of ​​the enterprise for its reconstruction. All this will improve throughput, ensuring an accurate flow of parts without redundant carrying of elements. It must be said that Castle employees can perform quite a few functions at the same time. People are the backbone of any organization, so any changes must take their needs into account. If proper planning makes their life easier, then people in a good mood will create an equally good product.

The next part of the plan is investing in equipment and machinery that ensures the creation of quality products. The first steps have already been taken in this direction - two key machines for the production of housings have been purchased.

First, a router with automatic control was installed, which opened up the possibility of quickly drilling complex shapes. In addition, the double-edge eight-head saw functions perfectly. This part of the technology significantly affects the efficiency of creating housings for Castle acoustics and speakers. In the future, with the participation of the R&D Manager, who was recently appointed to the position, new research will be conducted to improve the design of speakers and the interaction between the components of the equipment: speaker, cabinet and crossover circuit.

For Castle customers, this demonstrates that they are maximizing their demand for the highest quality products that look great and are delivered on time. Similar to musical instruments, Castle equipment is manufactured by the best professionals who are dedicated to their craft, so it can be called an advanced item that can reproduce music perfectly.

Set of speaker systems for home theater and music

Having tested the active subwoofer, we couldn't stop there. Today in our test laboratory is a set of Castle bookshelf speakers capable of sounding a medium-sized room. The set is composite (we took several models from one line), so it can be configured differently if desired.

As you can see in the photo, the set consists only of bookshelf speakers and a central channel speaker, despite the fact that the line is quite extensive: 3 models of bookshelf speakers, 5 models of floorstanding speakers, 2 central speakers (a larger one is included in the test) and a subwoofer, which We've only recently. But we assembled the system only from bookshelf speakers for two reasons: firstly, most buyers of speakers in this price category will probably build a home theater in an ordinary medium-sized living room (15 - 25 m²), and secondly, bookshelf speakers are still a little easier to place in the room, and visually they will not take up much space, even if they stand on special floor stands (that is, they will occupy the same space as their floor counterparts). And, thirdly, in a room with a relatively small area, the bass of bookshelf speakers will be perceived more comfortably, which will have a positive effect on the perception of sound as a whole. This is about music. In a theater, in any case, you will have to use a subwoofer, which means that deeper and more powerful floor-standing speakers will not be a joy in relatively small rooms. So, bookshelf acoustics for relatively small rooms can quite rightly be considered the optimal choice. However, there is also an intermediate category of “compact floor-standing speakers”, but there is a separate conversation...

Castle Warwick 3

Two-way bookshelf speaker system. The design of the front panel could be called classic, if not for the swivel-shaped shape of the protective grille (this is a signature feature of almost all Castle speakers), as well as the “inverted” arrangement of the speakers, when the tweeter is located under the bass/midrange driver. In addition, the high-frequency speakers are shifted slightly to the side, and this is done in a mirror manner on the left and right speakers. The user can choose according to his taste how to position the speakers: with the tweeters facing outward or inward, especially since there is no marking indicating whether it is a right or left speaker. However, during listening, we placed the speakers as can be seen in the photograph - that is, the HF drivers were “inside” the stereo base. Another important point is the front bass reflex port, which allows, if necessary, to place the speaker quite close to the wall or even in a niche.

Having started the description of Warwick 3 with the design, we completely forgot to talk about the external decoration, and believe me, it’s worth talking about. The official distributor of Castle in Russia (A&T Trade) reported that three color options are possible: “regular” - as in the photo (natural veneer), or one of two “deluxe” options: yew or rosewood veneer. Of course, the deluxe finish is a little more expensive than the standard one, because it looks amazing. However, even with the “ordinary” finish, the appearance of the speakers is very attractive and memorable.

On the rear panel there is a block of connectors that allows the use of traditional “audiophile joys”: namely, a four-cable connection and banana connectors. Of course, no one bothers you to use a conventional two-cable connection, clamping the exposed wire with a screw terminal, as many do.

Inspection of the “underhood space” made an extremely favorable impression on us. It’s worth starting with the fact that the designers struggled with various resonances and vibrations in a comprehensive manner, using as many as three methods of acoustic optimization of the internal space of the case. The first thing that catches your eye is the absorber, which in this case is made not of padding polyester, but of sheet foam rubber approximately 2.5 cm thick. As you understand, it was removed during filming. This sheet of foam covers all the walls of the speaker, including the bottom. After dismantling it, the body panels veneered from the inside are revealed: a “sandwich” of veneer, MDF sheet and plywood sheet is used. This layered panel is very resistant to resonances and vibrations. And finally, on the side walls we found sheets of bitumen (!), which is known to be an absorber of the lowest frequencies and a damper that reduces possible vibrations of the housing wall at the same time. This approach of developers to the design of far from the most expensive speakers makes us just take off our hats. Although, the pleasant surprises are not over yet.

The wiring inside the speakers is made with a fairly thick (about 2 mm² cross-section) OFC (Oxigen Free Copper) cable. The cable is also original, from Castle.

Castle acoustic systems can be called “purely English”, because the body, speakers, and many components are developed and manufactured at Castle’s own facilities in England. But now we are interested in the speakers.

A driver with a metal diffuser holder, a 150-mm carbon fiber diffuser (the same material from which the ultra-light and very durable F1 car bodies are made), a phase-compensating dust cap in the form of a bullet tip (polymer cap) and a shielded magnetic system are responsible for the reproduction of low and medium frequencies. , allowing you to place the speaker literally right next to a CRT-based TV.

The high-frequency driver has a 19-mm dome diffuser made of polyamide, which is also quite unusual, especially for this class of speakers.

Measurement results

The frequency response graph shows noticeable irregularities throughout the entire frequency range. It is very difficult to predict the sound of speakers in advance based on this graph. Now we can only talk about the absence of serious distortions in the tonal balance. A slight roll-off in the region of 5-8 kHz can lead to a more restrained sound for many instruments, but aggression is not expected at high frequencies.

We remind you once again that the graph of frequency response and distortion is provided only to identify obvious possible shortcomings and some features of the tonal balance. A complete picture of the sound can only be given by long-term listening to various musical materials.

The level of distortion at low frequencies is several percent (which, in principle, is not that much), and after the 300 Hz mark it drops below 1%. Good result.

Frequency response measurements at an angle of 45° in the horizontal plane did not reveal any problems with sound dispersion in space.

Castle Richmond 3

These compact speakers are almost half the height of the solid Warwick 3, however, despite their modest size, the Richmond 3 can easily work as a front pair if you plan to sound a very small room with an area of ​​12-15 m².

The bass reflex port is located on the rear panel, which does not allow the speakers to be placed close to the wall. This fact may complicate the process of installing speakers in small rooms, especially if the Richmond 3 will be used as rear speakers.

You can estimate the size of the speaker systems from the picture.

A four-cable connection is not provided. Only a traditional two-cable connection is possible, but banana connectors can also be used in this case.

Since the Richmond 3 is almost half the price of the luxurious Warwick 3, we didn’t really expect to see equally serious sound absorption measures. but they were partially mistaken. The internal veneer is still there (commendable for a $450 speaker), but we can no longer find the bitumen absorber. The role of a traditional sound absorber is the usual padding polyester. The fact is that, in addition to the price, there is also a factor of expediency: the Richmond 3 case is quite compact, and the low-frequency output of these speakers is noticeably less than that of the Warwick 3, so it is quite possible to assume that in there was simply no need for bitumen sheets.

It is gratifying that this relatively inexpensive speaker uses exactly the same high-frequency driver (19-mm polyamide dome) and a similar woofer/midrange driver with a carbon cone, cast base and bullet-shaped cap. But in this case there is no magnetic protection, and the diameter of the diffuser has become slightly smaller - its diameter is 130 mm. The only thing worth noting is the very low sensitivity of the speaker. At a frequency of 1 kHz it is only 86 dB. This means that you will have to look for a more “muscular” amplifier that can “drive” these speakers.

Measurement results

In this case, the picture is completely different. Oddly enough, at mid and high frequencies the frequency response is a little smoother than that of Warwick 3, but in the lower middle it’s the opposite. I was also a little surprised by the rise in the distortion level to several percent in the range of 1.5 - 6 kHz (Warwick 3 in this range has a distortion level noticeably less than 1%). This may cause a slight “squeezing” effect in the sound.

There are no problems with the frequency response obtained at an angle of 45° in the horizontal plane - it does not differ much from the one that was obtained on the axis, which means the speakers cannot be called highly directional - this is good.

Castle Bastion

Two-way center channel speaker with shielded magnetic speaker system. In terms of design and dimensions, this central speaker is somewhat reminiscent of the Warwick 3 model lying on its side (the same rounded edges of the front panel), only this time the protective mesh turned out to be a completely traditional rectangular shape. The dual bass reflex port is located on the front panel, which allows you to place Castle Bastion even in a niche or on a shelf under the TV. As in the two previous cases, the Bastion body is covered with natural veneer. And the deluxe finishing options (yew or rosewood veneer) are still offered.

The internal similarity with Warwick 3 is also obvious: sheet foam rubber as a sound absorber, additional veneering of the internal walls. There are no bitumen sheets.

While talking about the insides of the speakers we tested, we forgot to mention one detail: in the Warwick 3 and Bastion models, only soldering is used when connecting the crossover components and connecting the speakers. Even the wires to the speakers are soldered (most manufacturers limit themselves to using simple crimp-on removable terminals), which added a little more “weight” to the speakers in our eyes.

Measurement results

A slight dip in the region of 3-4 kHz can slightly reduce the “brightness” of the sound, although the graph in the rest of the range cannot be called particularly smooth. However, you have to wait until you listen, because the frequency response graph is not able to give a complete picture of the sound of the speakers.

The situation with distortion is similar to the Warwick 3 model: a few percent at the low end, less than 1% after the 300 Hz mark.

Sound in music

Now is the case when two pairs of speakers (Warwick 3 and Richmond 3) turned out to be close in sound character, but still different in some aspects, so we will talk about each model separately. Let's start, oddly enough, with the little Richmond 3. In fact, there is no catch here, it just so happened that we listened to them first, so we will talk about them first, so as not to break the chain of impressions received from the speaker systems Castle.

Richmond 3 auditions were held in two stages. The first one is traditional. That is, the usual listening in a special room. The speakers are located at a distance of approximately 3 meters from the listeners. The speakers are installed on 60 cm backfill stands.

We drove all our test units for quite a long time to understand that the speakers are quite “omnivorous” in terms of music genres. At least you can listen to jazz, classical and rock quite comfortably. Richmond 3 has a number of advantages that allow us to rate the sound quite highly, despite a number of shortcomings. It would seem that the speakers do not have memorable dynamics; they shape the space well, but they are also nothing special; they do not amaze the imagination with either the detail of the sound or the depth of the bass. But on the other hand, the Richmond 3 has a surprisingly comfortable tonal balance, good attack, as well as excellent recognition of the timbres of instruments and voices - in this regard, the speakers add almost no “add-on” to the sound. But what is most captivating is the almost complete absence of “droning” when playing almost any music, which is why there is absolutely no tension when listening. The disadvantages of Richmond 3 include a certain lack of dynamics (one gets the feeling that a dynamic range compressor is included in the path), as well as an emphasis on midbass - somewhat stronger than we would like.

The second stage of testing was carried out at my home - the speakers were used as near-field monitors (seated at a distance of about 1 meter from the speakers, and the speakers themselves were located at face level). As you might expect, I didn’t like monitoring on the Richmonds (after all, these were not originally monitor acoustics), but listening to music turned out to be quite comfortable even at such a short distance. The absence of magnetic shielding did not affect the operation of the Viewsonic P95f monitor at all (the speakers were installed 20 centimeters from the monitor on small table stands with vibration isolation).

But it was much more interesting to “communicate” with the larger (and almost twice as expensive) Warwick 3. Let us remind you that they use a number of “goodies” that, for obvious reasons, are not in the simpler Richmond 3.

Warwick 3 demonstrated even greater versatility of sound, playing all (!) tracks of the test selection without a hint of “dislike” for a given genre or recording. Despite the size of the body, the bass was not as deep as it might seem, but it was very clear and very “fast”. However, the bass depth was not enough to fully reproduce recordings of organ music or reproduce the full depth of double basses in a symphony orchestra.

The tonal balance is also extremely comfortable, but the dynamics and sound stage of the Warwick 3 are noticeably better than the small Richmond 3 (not surprising).

The second thing that pleasantly surprised Warwick was some emphasis on barely noticeable sounds. In view of this. Most of the songs in the test selection sounded fresh and detailed. And after finishing the mandatory program, I decided to listen alone to some of my favorite discs from my home collection. To my surprise, I heard new sounds and nuances on some compositions, which I had somehow not paid attention to before even in good monitor headphones AKG K240DF. It’s all about the speakers’ ability to “pull out” barely audible sounds, which is why many compositions sounded new. Marvelous.

The sound of Warwick 3 can be described as very comfortable and accurate, with good attention to detail. It is also worth noting a good “sense of tempo”: the speakers play very measuredly and rhythmically - it feels like there is a metronome built inside :-) In other words, the speakers do not bring their emotions into the sound, presenting it somewhat “dryly” and pedantically in English.

Sound in the theater

Everything that has been said about the sound in music can also be attributed to the theater abilities of the speaker. Since the central speaker is very close in design to the front pair, there were no problems with coordination.

Conclusion

After extensive testing of Castle speakers, we can confidently say that they are completely worth their price. Beautiful appearance and decent (albeit somewhat indifferent, “dry”) sound, combined with the absence of genre restrictions on the reproduced material, make these speakers a good choice for both an avid theatergoer and a music lover. But the system will be most appreciated by those who want to enjoy listening to music and watching movies on the same system.

Pros

• clear and comfortable sound of the entire system;
• very universal sound (both different music and movies are perceived equally well)
• Superb Warwick 3 sound
• correct coordination of speakers in the theater;
• solid appearance and high-quality finish;
• elaborate design.
• reasonable price.

Cons

• the sound is a little lacking in emotion;
• low sensitivity of the Richmond 3 model.