bk av125.7 User Manual
PURPOSE AND FUNCTION
The AV125.7 and AV125.5 are high power amplifiers designed for use in all types of audio or audio/video
systems.
systems.
DESIGN AND
CONSTRUCTION
The AV125.7 and AV125.5 utilize high quality electronic circuitry to achieve an environment wherein a detailed,
transparent, and highly musical sound can be realized. The high quality parts complement includes: state-of-the-
art solid state devices, 1% metal film resistors, computer grade electrolytic power supply capacitors, and a high
capacity toroidal transformer.
The AV125.7 and AV125.5 operate with a class A predriver and AB high current MOSFET power output stages.
These amplifiers are capable of delivering their full rater power while reproducing the most demanding music
passages effortlessly into the most demanding audiophile speakers.
transparent, and highly musical sound can be realized. The high quality parts complement includes: state-of-the-
art solid state devices, 1% metal film resistors, computer grade electrolytic power supply capacitors, and a high
capacity toroidal transformer.
The AV125.7 and AV125.5 operate with a class A predriver and AB high current MOSFET power output stages.
These amplifiers are capable of delivering their full rater power while reproducing the most demanding music
passages effortlessly into the most demanding audiophile speakers.
FEATURES
Control Output
- one 3.5 mm 12 VDC @ 125 mA output for turning on amplifiers and controlling external
systems such as a projection screen or B & K amplifier.
Control Input
- one 3.5 mm jack that allows standby on/off with a 5-24 VDC control signal.
Gold Plated Connectors -
better sound with minimum signal loss and degradation.
Toroidal Transformer -
Efficient, shielded transformer that supplies the amplifier with a clean and constant
supply of power, even during highly demanding source material passages.
Discrete Circuitry -
Dynamically provides a full, accurate, and three dimensional reproduction of source material
.
Class A Predriver -
Improves low level detail and clarity for smoother, more musical sound.
AB MOSFET Output Stage -
Provides efficient and linear power delivery, as well as protection from thermal
overload.
1% Metal Film Resistors -
Higher quality resistors for lower noise, better sound, and a greater degree of
repeatability.
High Current -
Ability to cleanly, accurately, and reliably reproduce demanding recordings or source materials
into low impedance drivers and speaker systems.
Computer Grade Capacitors -
Large capacity computer grade electrolytic capacitors for extended low frequency
control, increased power supply, and improved dynamics.
Fused Outputs -
Provides limited protection from accidental shorting of amplifier outputs.
Heavy Duty Gold Binding Posts -
Improved current carrying capacity and sound quality.
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