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INTRODUCTION 

Thank you for selecting B&K Components, Ltd.’s Phono 10 phono preamplifier. The Phono 10 is a discrete circuit 
DC coupled topology RIAA phono preamplifier. It features a selectable head amp for use with both Moving Coil 
(MC) and Moving Magnet (MM) players. In addition to a control I/O circuit is incorporated for standby / turn-on 
from an external device there is also a S/PDIF coax digital output for use with CD quality recording. Gold plated 
connectors have been utilized to minimize degradation in the signal path. In order to obtain maximum 
performance from this unit, please read the following instructions very carefully. Again, we at B&K Components, 
Ltd. would like to thank you for purchasing a Phono 10 preamplifier and wish you many years of listening 
pleasure. 
 

FEATURES 

1% Metal Film Resistors -

 High quality resistors allow a lower noise floor and better sound.

 

 

Control I /O 

- Circuit allows for power ‘on’ and ‘off’ muting and external control for other components. 

 
Direct coupled output - 

Provides a full and accurate, three dimensional reproduction of source material

 

Discrete Circuitry – 

Allows minimum loading of the Phono cartridge and maximum amplification dynamic range. 

  

FET loading

 – Allow maximum linearity with minimum noise. 

 

Gold Plated Connectors –

 Provides for minimum signal loss and degradation. 

 
Optional Digital output

 – Allows the Phono 10 to be used for transferring records to your Computer, CD or DAT 

player. If not currently installed in the Phono 10, the S/PDIF *Digital output board is available for upgrade. 

 

RIAA accuracy

 - +/- .2 dB through the use of polypropylene film capacitors. This produces a transparent sound 

with highly accurate musical timbre. 

 
Toroidal Transformer -

 Efficient, high current, shielded transformer that supplies the amplifier with a clean and 

constant supply of power, even during highly demanding source material passages. 
 

Wide bandwidth 

- Assures clear reproduction with all styles of music. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for Phono10

Page 1: ...P N12839 0902 B K S B IMPLY ETTER B K Components Ltd Phono 10 Owner s Manual...

Page 2: ...ii B K Components Ltd 2100 Old Union Road Buffalo New York 14227 2725 Phone 1 800 543 5252 or 716 656 0026 Fax 716 656 1291 E mail info bkcomp com Web www bkcomp com...

Page 3: ...gn and Construction 4 Phono 10 Connections 4 Phono Stage 5 Selecting Moving Magnet Moving Coil 5 Capacitive Loading 6 Resistive Loading 6 Control I O Connections 8 Gain Switch 9 Digital Output 9 Troub...

Page 4: ...ance servicing instructions in the literature accompanying the unit Observance of polarity is essential Double check connections before turning the receiver or preamplifier on The Phono 10 can be dama...

Page 5: ...d better sound Control I O Circuit allows for power on and off muting and external control for other components Direct coupled output Provides a full and accurate three dimensional reproduction of sou...

Page 6: ...NTROL I O CONTROL I O DEFEAT ENABLE OUT IN 12V 35mA 1 Control I O 5 Ground Binding Post 2 Gain Switch 6 Digital Output 3 Analog Outputs 7 AC Receptacle 4 Analog Inputs 1 Control I O For remote turn on...

Page 7: ...ONO 10 CONNECTIONS All leads should be connected securely to the input and output terminals Loose connections can lead to impaired performance noise interference and possible damage to your equipment...

Page 8: ...F THE FOLLOWING PROCEDURES SELECTING MOVING MAGNET MOVING COIL 1 Locate the 2 position slide switch on the inside of the unit see Figure 2 It is located near the back left side with the front of the u...

Page 9: ...oil This resistor should not be removed unless the resistive loading is being changed in accordance with the following guidelines 1 Determine the resistor value for proper loading of the cartridge in...

Page 10: ...8 k 53 6 k 50 0 k 100 0 k 100 k MM 75 0 k 300 0 k 301 k Factory Installed 2 With the front of the unit facing you locate the two gold plated pin receptacles with the label RLOAD between them They are...

Page 11: ...st be within the range as indicated on the rear panel 5 24V DC The Phono 10 s CONTROL OUT will provide each successive component with a control voltage of 12V DC for reliable operation The Phono 10 s...

Page 12: ...ut signal level is 0 dB When the switch is OUT the output level is decreased by 10 dB NOTE If the Phono 10 has Digital Output capability the digital output level is related to the setting of the gain...

Page 13: ...and Phono 10 1 Check all connectors and repair as necessary 2 Check ground of outlet Have it checked by qualified serviceman 3 Reposition cables 4 Connect phono ground Sound is lower in volume compar...

Page 14: ...ad Resistance Variable Moving Load Capacitance Variable Moving Magnet S N A Weighted 89 dB Input Impedance 50 k Ohms Output Impedance 221 Ohms Maximum Output Level 9 V RMS Frequency Response 5 Hz 20 k...

Page 15: ...des B K delivers exceptional value to its customers But what is Upgradability Upgradability is not a guarantee we define it as a philosophy of designing and manufacturing products so that as audio tec...

Page 16: ...13 WWW BKCOMP COM B K Components Ltd 2100 Old Union Road Buffalo New York 14227 Phone 716 656 0026...

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