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| World's highest level Kenric Sound "KRS 4344" JBL Alnico remagnetized tangential diaphragm | Finemet coil, pure silver single-wire wiring, element polarity unified external network type |
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KENRICK SOUND 4344 (KRS 4334) Custom. Pair of white cone 135A equipped speakers for sale. First of all, this sound quality! Please listen to the video above with headphones plugged into your computer. It is a high reproducibility of various genres of music as if it were played by a multi-drive, but this is the highest grade of 4344 sound.
The stomach-churning bass around 100 to 200 Hz is called "heavy bass" by many people. However, in pure audio, the term "bass heavy" is not a very complimentary term. It is often used as a derisive term for a dull bass sound with no tone, which can be obtained by boosting the amplifier or increasing the mass of the diaphragm. Rather, it is more difficult to reproduce a "light bass" sound that is close to a live sound, with volume and a crisp response.
For this 4344, we installed 135A white cone woofers, which have a particularly high response among alnico magnet woofers characterized by their sharpness. It is a unit that can reproduce truly wonderful light bass.
The JBL 135A is very rare and has different characteristics from the 2231A (136A in consumer models) originally used in the 4343. The relatively lighter vibration system than that of the 2231A (136A) is a combination of the lightness of a 130 series woofer and the lowest mass-ring mounted mass control ring. The woofers have extended frequencies, and the result is a combination of the best of both worlds. This woofer is especially well matched with a single vacuum amplifier with large direct-heat tubes and no feedback. You can get a sense of its characteristics in the video above.
In fact, the woofer originally used in the 4341, the ancestor of the 4343, was the white cone 2230A, not the 2231A used in the later models. 2230A is very rare, so it is not often seen. It is a rare woofer that is also installed in the early 4350 model, and the consumer model of this is the 135A. Yes, the 4341 and 4343 have exactly the same unit configuration and network (except for the bi-amp circuit), so this KRS4344 Special has a unit configuration that is almost identical to the early 4341 model.
All units are remagnetized, and KRS artificial chamois leather edges are used for the woofers and midbass, which are mold-made by our company. All dampers, which are the key to the sharpness of the sound, were also replaced with new ones. The 075 tweeter was disassembled, tuned, and reassembled, and a 075 equalizer machined from solid aluminum bronze was installed. Solid aluminum bronze clamps are also used for fixing the woofers to prevent metal fatigue. All speaker units, wired with Teflon silver-plated internal wiring, are led independently to the large gold-plated terminals on the rear panel for each of the four channels.
In order to bring out the potential of the high frequency range, the LE85 driver was disassembled, tuned, and reassembled, and after replacing the sound absorbing material with a new one, a Type 2307 horn machined from solid aluminum bronze was installed. The tweeter 075 was disassembled, tuned, and reassembled, and a solid aluminum bronze machined Type 2402 horn equalizer was installed. The diaphragms are also new. Aluminum bronze clamps that do not cause metal fatigue were also installed to fix the woofers. Unlike cast aluminum horns, the solid aluminum bronze horn is machined from a solid block, tripling the mass, and the mirror-finished surface is silky even at the high end, with no extra incidental sound.
The horns are also silky to the high end with a mirror-finished surface and no extra incidental sound. The overwhelmingly smooth connection and rich tone quality greatly improves the overall system quality.
The key to tuning for sufficient bass and a wide range of sound reproduction is to minimize the wind noise that occurs when cabinet internal pressure is increased. This is an area that can never be reached without technical work performed throughout, including the use of special Teflon gaskets to ensure component sealing and the solidification of cabinet joints.
The 4344's baffle is a single panel of laminated plywood, ultrasonically fused together to form one side of the overall cabinet. The rigidity of the 4344 baffle is also an important factor in the performance of this custom loudspeaker. The rigid baffle holds the unit firmly in place, and the entire cabinet provides ideal control of the resonance generated by the precise strokes of the unit. Adjustment by balancing the amount of internal sound-absorbing material, which has been newly replaced, is also essential.
The side surfaces of the cabinet are polished smoky brown walnut/piano finish. Piano paint is critical to the quality of the finish. A cheap paint job that distorts the reflective surfaces as if they ripple when light sources or objects are reflected in the surface is a lack of skill. Polished to a finish with a flat surface and uniform brilliance is the state to aim for. You can see this in the video above and the oversized image below. The greatest feature of this product is its depth and luster, which makes the most of the beautiful woodgrain. Since the wood grain is not crushed, this is a finish that cannot be applied to a piece with poor base material.
A quality piano finish is achieved by applying several hundred coats of polyester paint, polishing the surface smooth, and then buffing and compounding the paint to a luster. 7-8 coats are applied to achieve a smooth finish that is not uneven even when the eye moves around under a fluorescent light. Please note that there are places that describe all paints with a mirror surface (smooth surface) and a glossy finish as piano paint, and even paints that are polished with urethane or lacquer paints, or paints with a polished finish using UV paints are sometimes falsely labeled as "piano paint. Be wary of low quality paints that have a bumpy surface like a yuzu skin.
As with pianos and guitars, the sound of the sound is greatly influenced by the quality of the paint. The sound produced by a glossy cabinet finish is subtle and has a remarkable depth of feeling. Only Kenric Sound can tune the tone with a single coat of paint. It is a high level of maintenance that enhances the quality of the original "sound" without destroying it. The inner surface of the cabinet is coated with a special impregnation material, which in combination with the hard polyester and polyurethane coating on the outer surface, is an important element in bringing out the best sound.
The most distinctive feature is the design of the dedicated external network, assembled with ultra-luxurious components never before seen on the market, which supports the entire sound output.
The external network, which is the same size as a power amplifier, is the result of our extraordinary attention to detail. The LF coil is made of the company's copper foil M-Coil. This ensures an ultimately high-response, low end bass that sinks deep into the low end. And for the HF filter coil, a Finemet cut-core coil (nanocrystalline soft magnetic material) is exclusively manufactured. For the internal wiring material, a single 4N pure silver wire of φ2 to φ3 diameter is used, whose polarity is standardized during rolling, and which not only has low electrical resistance but also has outstanding transmission capability for each band without any variation due to the extremely impurity-free silver wire, which is not affected by unnecessary inductance.
The simple configuration of the dedicated circuit design by Kenric Sound, which is made up of a large number of parts, is the key to delivering signals from the amplifier to each unit with no limit to loss. Other high sound quality parts such as non-magnetic gold-plated terminals and MIL spec high-grade switches with steatite insulators are generously housed in a solid walnut case, making this a genuine crossover. This is the ultimate product that supports single amp drive, bi-amp drive, bi-wire connection, quad-amp connection (4-way multi), and all with just a switch on the rear panel. (We can also manufacture this external network as a stand-alone unit for a price of 2,800,000 yen per pair.)
The set includes all 8 units including alnico from woofer to tweeter, all remagnetized, and installed with solid aluminum bronze horns and solid aluminum bronze clamps, and a top-of-the-line external network. The highest grade product with all the luxuries. We hope you can see through the video that our speakers are of excellent quality. We invite you to visit us even if you are far away and see the quality first hand.
The sound quality! Please listen to the video with headphones plugged into your computer to hear the difference in sound from the JBL 4344.
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YouTube can also playback stunning 4K60p high-definition videos. This high definition image quality allows you to see every detail in every corner. Select "2160p60 4K" in the picture quality selection at the bottom right of the playback video. (Requires PC processing power)
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Improved maintenance techniques at Kenrick Sound have made it possible to restore speakers that are so polished inside and out. Please check the oversized images below and be amazed at the quality of the condition of the speakers. The condition is restored by the vintage speaker restoration process that is realized by the know-how of work that cannot be matched by other stores. Only Kenrick Sound, a JBL specialty store, can provide high quality speakers at this selling price. We guarantee your satisfaction when you receive your speakers from us. Please check our "Testimonials" section to see what our customers have to say.
Many speakers of this era have been neglected in their restoration, but even if they are one-owner speakers, we spend a lot of time talking to the speakers to bring out their condition, which will always show up as good or bad sound. We believe that countless restoration processes are carried out by hand, resulting in a product that you will be satisfied with.
Please see the oversized images below.
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【製品仕様】
| 方式 | 4ウェイ・4スピーカー・バスレフ方式 |
| ユニット | 低音用：135A
中低音用：LE10A（特殊リコーン）
中高音用：ホーン型（LE85＋BC6製2307 horn）
高音用：ホーン型（075 + BC6製2402 horn） |
| 再生周波数帯域 | 35Hz～20kHz（±3dB） |
| ターミナル | シングル、バイアンプ、バイワイヤー、4wayマルチアンプ駆動、全て切り替え対応 |
| 指向性 | 60゜×30゜（16kHz） |
| インピーダンス | 8Ω |
| 出力音圧レベル | 93dB/W/m |
| 許容入力 | 75W（ネットーワーク時）
75W（300Hz以下）
75W（300Hz以上） |
| エンクロージャー容積 | 156L（ウーファー）、14L（ミッドウーファー） |
| 外形寸法 | 幅635×高さ1051×奥行435mm |
| 重量 | 100kg |
サランネット×2枚、KRS新品音響レンズ×2個、標準付属品すべて完備、（専用ウォールナットスタンドは別売）
スピーカーには後述のメンテナンスが施してあり、外観、性能ともに良好です。
オークションや中古ショップで、価格が安いという理由だけで状態が芳しくない個体やジャンク品を入手されて、ご自分で修理する費用が予想以上に発生したり、思わぬ不具合に当たり修理不能だったなど、苦い経験をされたことはありませんか？
例えオーディオ店で扱われている品物でも、キャビネットの傷や付属品の不足が激しいなど、決して良質とは呼べないものも多く見受けられます。
ケンリックサウンドでは、JBLスピーカーのメンテナンスとして基本的なウレタンエッジ交換に始まり、キャビネットのクリーニング、またはツキ板交換、アッテネーターのクリーニング、または新品交換や、ユニット内部、ネットワークの点検、欠損パーツの補修、そしてオプションサービスでのオーバーホールから、カスタムメイドまで・・・、末永く今後も安心してお使い頂けるように万全の整備体制を整えてメンテナンスに臨んでおります。ここまで細部に至るまで手をかけられるのは、JBL43XX専門店のケンリックサウンドだからできるサービスです。
ご予約による販売も承っているため、メンテナンス完了してもウェブサイトに紹介されずに直接お客様の元へ渡っていくスピーカーたちが増えています。ウェブサイトだけを頼りにお待ちいだいる方にはご不便をおかけして申し訳ありません。
ご購入から原則1年間の保証がつきます。保証期間を過ぎても専門店ならではのパーツ完備により、あらゆる修理・補修に柔軟に対応いたします。JBL社で取扱中止となっているパーツでも当店が保管しているものも存在します。
JBL43シリーズを常に多く手掛けておりますので、後々の下取りアップグレードでも大いにお力になれます。4343からダブルウーファーの4350へ下取り差額交換されたり、引っ越しに伴いスピーカーの縮小化などでも、適切なモデルのご紹介が可能です。
ウレタンエッジの寿命（一般使用下にておよそ10年）が訪れても当店でエッジ交換を承れます。専門店ならではの安心感は価格を超えた付加価値です。
当店ウェブサイトのQ&A よくある質問をご覧いただくか、メールまたお電話（03-5948-6056）にてお問い合わせください。スピーカーをご購入いただいた世界中のお客様からコメントと画像をお寄せいただいく「お客様の声」コーナーもご参照ください。
提携輸送会社によるお届け。配送料・開梱・設置（配線接続などは含まず）費用は全国一律 28,000円。
現金、銀行振込、クレジットカード決済、アプラス、ジャックス、オリコのショッピングクレジット（ローン決済）もご利用可能です。最長84回払いまで対応いたします。事前にお問い合わせください。
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