User Manual KC62 Uni-Core Force Cancelling Subwoofer
EN WARNING: The apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection. DE Warnhinweis: Dieses Gerät mit der Schutzklasse I muss an eine Netzsteckdose mit Schutzerdungsanschluss angeschlossen werden. FR Avertissement: Les appareils de construction de classe I doivent être branchés sur une prise secteur avec raccordement à la terre.
Inside the box Controls and sockets DE Lieferumfang FR À l’intérieur de la boîte ES Dentro de la caja JA パッケージの内容 CHI-S 包裝清單 CHI-T 包裝清單 KR 상자 내용물 DE Bedienungselemente und Anschlüsse FR Commandes et prises ES Controles y conexiones JA コントロールＳＷ及び入出力端子 CHI-S 控制和接口 CHI-T 控制和接口 KR 제어 및 소켓 1 2 3 4 5 6 7 Wa rranty Inform atio n x3 x1 x1 13 EN Contents vary by region. JA 内容は国によって異なります。 DE Inhalte variieren nach Ländern. CHI-S 內容因區域不同而不同。 FR Le contenu varie selon le pays.
Controls and sockets Controls and sockets DE Bedienungselemente und Anschlüsse FR Commandes et prises ES Controles y conexiones DE Bedienungselemente und Anschlüsse FR Commandes et prises ES Controles y conexiones JA コントロールＳＷ及び入出力端子 CHI-S 控制和接口 CHI-T 控制和接口 KR 제어 및 소켓 JA コントロールＳＷ及び入出力端子 CHI-S 控制和接口 CHI-T 控制和接口 KR 제어 및 소켓 EN DE 4 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12 13. 14.
Positioning Positioning DE Aufstellung FR Positionnement ES Posicionamiento JA 位置 CHI-S 擺放位置 CHI-T 擺放位置 KR 배치 DE Aufstellung FR Positionnement ES Posicionamiento JA 位置 CHI-S 擺放位置 CHI-T 擺放位置 KR 배치 EN The KC62 is side firing, therefore there should be a minimum of 77mm (3") clearance between the drivers and any wall. DE Der KC62 strahlt zu den Seiten ab, daher sollte ein Mindestabstand von 77 mm (3") zwischen den Treibern und jeder Wand eingehalten werden. FA La KC62 est à diffusion latérale.
Connection to LINE INPUT from a preamp or receiver Connection to SPEAKER INPUT from a stereo amp or receiver DE Anschluss an LINE INPUT eines Vorverstärkers oder Receivers DE Anschluss an den SPEAKER INPUT eines Stereo-Verstärkers oder -Receivers FR Connexion à l'entrée "LINE INPUT" depuis un préamplificateur ou un récepteur FR Connexion à l'entrée "SPEAKER INPUT" à partir d’un amplificateur ou d’un récepteur stéréo ES Conexión a la ENTRADA DE LÍNEA desde un preamplificador o receptor ES Conexión a l
LFE connection to 2 subwoofers Stereo connection to 2 subwoofers DE LFE-Verbindung von zwei Subwoofern FR Connexion LFE à 2 caissons de basses DE Stereo-Verbindung von zwei Subwoofern FR Connexion stéréo à 2 caissons de basses ES Conexión LFE a 2 altavoces de subgraves JA LFE から2台のサブウーファーに接続 ES Conexión estéreo a 2 altavoces de subgraves JA ステレオ出力から2台のサブウーファーに接続 CHI-S 連接至2个有源超低音音箱的 LFE 連接 CHI-T LFE 連接至2個有源超低音音箱 CHI-S 連接至2个有源超低音音箱的立体声連接 CHI-T 立體聲連接至2個有源超低音音箱 KR 서브우퍼 2 대에 LFE 연결 KR 서브우퍼 2 대에 스테레오 연결
Connection to small speakers in a stereo music system Connection to small speakers in a stereo music system DE Anschluss an kleine Lautsprecher in einem Stereomusiksystem DE Anschluss an kleine Lautsprecher in einem Stereomusiksystem FR Connexion à de petites enceintes dans un système de musique stéréo FR Connexion à de petites enceintes dans un système de musique stéréo ES Conexión a altavoces pequeños en un sistema de música estéreo ES Conexión a altavoces pequeños en un sistema de música estéreo
Connection to LINE INPUT from LSX / LS50W / LS50W II Connection to KW1 Wireless Subwoofer Adapter Kit (Optional accessory) DE Verbindung zum LINE INPUT von LSX / LS50W / LS50W II DE Verbindung zum KW1 Wireless Subwoofer Adapter Kit (Optionales Zubehör) FR Connexion à l'entrée "LINE INPUT" depuis LSX / LS50W / LS50W II FR Connexion à KW1 Kit Adaptateur Sans Fil Caissons de Basses (Accessoire optionnel) ES Conexión a la ENTRADA DE LÍNEA desde LSX / LS50W / LS50W II ES Conexión al KW1 adaptador inalámbr
Controls Controls DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 CHI-T 手動調節 KR 제어 CHI-T 手動調節 KR 제어 EN Crossover frequency control & mode The crossover frequency control changes the upper cut-off frequency of the subwoofer. Its effective range is from 40Hz to 140Hz at a rate of 24dB per octave.
Controls Controls DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 CHI-T 手動調節 KR 제어 CHI-T 手動調節 KR 제어 JA クロスオーバー周波数の設定とモード切替 周波数調整はサブウーファーの高域側のカットオフ周波数を調整します。調整可能範囲は 40Hz~140 Hzで、24dB/oct.
Controls Controls DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 CHI-T 手動調節 KR 제어 CHI-T 手動調節 KR 제어 EN Volume control The volume control adjusts the output level of the subwoofer in relation to the satellite or AV speaker output level. Clockwise rotation to increase the output level or anti-clockwise to decrease the output level.
Controls LED indicator light DE Direkte Einstellung FR Reglages manuels ES Controles manuales JA 手動による設定 CHI-S 手動調節 DE LED Leuchtanzeige FR Voyant LED ES Indicador LED JA LEDによる表示 CHI-S LED指示灯 CHI-T LED 指示燈 CHI-T 手動調節 KR 제어 KR LED 표시등 EN Ground lift If you hear ground related noise, make sure your system is properly grounded and that all antenna, satellite, or CATV lines are properly grounded.
Specifications DE echnische Daten FR Spécifications ES Especificaciones JA スペック CHI-S 規格特性 CHI-T 規格特性 KR 사양 產品中有害物質的名稱及含量 有害物質 部件名稱 鉛 (Pb) 汞 (Hg) 鎘 (Cd) 六价鉻 (Cr(VI)) 多溴联苯 (PBB) 多溴二苯醚 (PBDE) 箱体 ○ ○ ○ ○ ○ ○ 喇叭單元 ○ ○ ○ ○ ○ ○ 电子部件 X ○ X ○ ○ ○ 接線端子 X ○ ○ ○ ○ ○ 电線 X ○ ○ ○ ○ ○ 附件 ○ ○ ○ ○ ○ ○ 本表格依据 SJ/T 11364 的規定編制。 ○: 表示該有害物質在該部件所有均質材料中的含量均在 GB/T 26572 規定的限量要求以下。 X : 表示該有害物質至少在該部件的某一均質材料中的含量超出 GB/T 26572 規定的限量要求。 注: 含有有害物質的部件由于全球技術发展水平限制而無法 实現有害物質的替代。 限用物質含有情況說明書
GP Acoustics (UK) Limited Eccleston Road Tovil, Maidstone Kent, ME15 6QP UK P/N: 4301-7599+1 For product registration, please visit https://kef.world/kc62reg KEF.
KC62 Uni-Core Force Cancelling Subwoofer Don’t let the size fool you Summary of features Deep and powerful bass is no longer solely the domain of big-shouldered, massive subwoofers. Thanks to three innovative KEF technologies, the KEF KC62 Uni-Core force cancelling subwoofer has changed the rules of subwoofer design forever. Performance levels are at complete odds with this compact subwoofer’s football-sized dimensions, with unprecedented depth and breath-taking accuracy delivered in equal measures.
Well connected The KC62 is also incredibly versatile, with a collection of connection options that allow it to be used with almost any audio system. Line level/speaker level inputs mean it can be connected to any amplifier, line output with HPF allows for exceptional fine-tuned integration, while KEF SmartConnect eliminates any connection issues. The KC62 is also compatible with the KW1 for wireless compatibility with the minimum of fuss.
Important Safety Information 114KEF
English Thank you for choosing KEF. KEF is dedicated to producing premium audio products with best-in-class sound quality to give you an engrossing and pleasurable listening experience that is true to the original performance. Please read the important safety and warranty information below. For any other services, please contact your local authorised KEF distributor, whose details can be found at www.kef.
The normal function of the product may be disturbed by Strong Electro Magnetic Interference. If so, simply reset the product to resume normal operation by following the instruction manual. In case the function could not resume, please use the product in other location. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
Please take heed of the following before using the KEF Speaker. Note also that the word "appliance" shall refer to the KEF speaker, or any part of it. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Read Instructions - All the Safety and Operating Instructions should be read before operating the appliance. Retain Instructions - The Safety and Operating Instructions should be retained for future reference.
GP Acoustics (UK) Limited Eccleston Road Tovil, Maidstone Kent, ME15 6QP UK ~ .... M U"\ "'6 U"\ g :i a:: KEF.
Warranty Information 114KEF
Limited Warranty Thank you for choosing KEF. KEF is dedicated to producing premium audio products with best-in-class sound quality to give you an engrossing and pleasurable listening experience that is true to the original performance. For KEF latest news and product information please visit www.kef.com KEF products purchased from an authorised KEF retailer are covered by a warranty. GP Acoustics (UK) Limited and KEF's authorised distributors provide warranty with a valid proof of purchase.
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KEF R&D KC62
CONTENTS 2 Introduction 2 Philosophy 2 KC62 2 Compact Subwoofers 2 Hofmann’s Iron Law 3 3 Technology Uni-Core Driver Array 3 Force Cancelling/Dual Voice Coils 4 Matching Driver Behaviour 5 Inductance 6 P-Flex Surround 7 Smart Distor�on Control Technology 7 8 Hybrid Control Systems Aluminium Cabinet 8 Vibra�on Control 8 Thermal Management 8 Frequency Response 9 Conclusion 9 References 10 Specifications
KC62 front (Mineral White finish, top) and side (Carbon Black finish, bo�om) ₁
Introduc�on Designing a small, high-performance subwoofer is difficult. There are compromises to be made in regards to output and extension. With the KC62 Uni-Core subwoofer, KEF engineers have developed three new patent-pending technologies that work together to deliver a higher level of performance in all aspects at the form factor. This paper discusses these new technologies, and other features, as well as giving insight into KEF’s philosophy on subwoofer and loudspeaker design.
Consider the modern string family of musical instruments - the violin, viola, cello and double bass. Table 1 shows the lowest notes that these instruments will play in their standard tuning, along with the frequency of that note - the violin being the highest pitch, through to the double bass as the lowest. It should also be no�ced that the size of the instrument increases as the frequency of the lowest note it can reproduce decreases (Figure 1).
Force cancelling provides two major benefits - firstly, as driver mo�on exhibits Newton’s Third Law -every ac�on has an equal and opposite reac�on - the driver’s mo�on To achieve force cancelling, one voice coil in the UniCore arrangement has been wired in inverse polarity due to the shared magne�c flux direc�on. causes mechanical vibra�on in the cabinet. Having an iden�cally performing driver placed in opposi�on cancels out the reac�on force of each driver - hence the term ‘force cancelling.
BL is the product of the magne�c flux density in the voice coil gap (B) and the length of wire in the gap (L). In Uni-Core, the larger diameter voice coil has a larger amount of wire in the gap. However, the structure of Uni-Core naturally accounts for this. In the single motor system design of Uni-Core, both sides have approximately the same magne�c flux passing radially through the motor gap. However, due to the different coil diameters, the area through which the flux passes is different.
The red curve shows the inductance of a pair of parallelconnected back-to-back conven�onal drivers with a simple ring ferrite motor and no aluminium or copper conduc�ve rings, and with the coil held at the rest posi�on. The inductance is plo�ed against frequency and is maximum at low frequencies, then reduces as frequency increases due to the effect of eddy currents flowing in the motor steelwork.
Smart Distor�on Control Technology There are numerous mechanisms whereby distor�on is introduced into the radiated sound. An ideal loudspeaker would exhibit the following: • BL(x) stays the same at all coil posi�ons • The s�ffness of the suspension is consistent across the excursion • The s�ffness of the internal air volume does not change as the driver moves back and forth • Voice coil inductance should not modulate with coil posi�on Figure 9.
The DSP por�on of the system uses an inverted numerical model of the loudspeaker, pre-programmed with the driver parameters, which pre-corrects the DSP output signal such that the added distor�on counteracts distor�on generated by the drivers. Simultaneously the instantaneous cone mo�on is indirectly sensed from the electrical current in the driver coils, and this signal is used in a feedback loop within the amplifier electronics.
Conclusion Through significant References new technological advancements and considered engineering, KC62 delivers an unprecedented combina�on of depth, detail and output from an ultracompact form. By pushing the boundaries of what has been considered [1] J. Wright, ‘Finite Element Analysis as a Loudspeaker Design Tool’, presented at the Audio Engineering Society UK 13th Conference; Microphones and Loudspeakers, Mar. 1998. [Online] Available: h�p:// www.aes.org/e-lib/browse.
Specifica�on Model KC62 Design Uni-Core Force Cancella�on Drive units 2 x 6.5 in. Frequency response 11Hz - 200Hz Max output 105dB Amplifier type Built-in Class-D Amplifier power 1000W RMS (2 x 500W RMS) Variable low pass filter 40Hz - 140Hz, LFE Input RCA Phono sockets Speaker level inputs Line output RCA phono sockets Line output high pass filter 40Hz - 120Hz, Bypass Power requirements 100 - 240V ~50/60Hz Power consump�on 1000W Weight 14kg (30.
Control panel of KC62 KC62, Carbon Black ₁₁
