B&K Reference 125.7 S2- 7 Channel Amplifier

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FEATURES:

  • Gold-Plated Connectors for improved sound with minimized signal loss and degradation.
  • Five way Gold-Plated binding posts for speaker connections.
  • Balanced Inputs deliver the quietest and most accurate signal path between your preamp and amplifier.
  • Class A Pre-Driver circuitry improves low-level detail for a smoother and more musical sound.
  • Class AB Mosfet Output stage delivers efficient, linear power.
  • Differential input stage with a current source load assures DC stability and wide bandwidth linearity.
  • Use of 1% Metal Film Resistors in the entire active circuitry to reduce noise for greater purity of sound.
  • Use of Toroidal Transformers to provide high current for superior dynamics.
  • Large capacity Computer Grade Capacitors for extended low frequency control and improved dynamics.
  • Capability to operate at full power with a square wave input signal.
  • All Power Ratings are measured from 20 Hz to 20 kHz.
  • Short Circuit Protection provides limited short term protection from accidental shorting of output devices.
  • Individual External Fuse Protection prevents damage from accidental shorting of output devices, while preserving the highest level of integrity to the original signal possible.
  • Built in Thermal Protection to provide limited protection under conditions when your amplifier is being over driven or inadequately ventilated.
  • All amplifiers are designed to be easily integrated to a whole house install as well as a second zone application.
  • All amplifiers can be externally controlled via a 12VDC trigger, supplied by all B & K preamplifiers and receivers. Daisy chaining amplifiers is also an available feature.
  • B & K products are available in 17” standard black or silver and 19” rack mount black or silver.
  • All B & K products sold through authorized dealers are covered by a 5 year, parts and labor factory warranty.

SPECS:

Number of Channels

7

Power Rating @ 8 §Ù

125 W

Power Rating @ 4 §Ù

185 W

Pairs of Output Devices Per Channel

2

Amperage Peak to Peak

30

Dynamic Head Room

1.2 dB

Frequency Response

5 Hz to 45 kHz

Damping Factor (50 Hz)

180

Input Sensitivity (RCA)
Unbalanced

1.0 V

Input Sensitivity (XLR)
Balanced

2.0 V

Input Impedance §Ù

33.2 k

IM Distortion (SMPTE)

.09%

Total Harmonic Distortion

.09%

Slew Rate

14 v/µs

Signal To Noise Ratio

95 dB

Level Controls

N/A

Balanced Inputs *

Yes

Dimensions in Inches                         
(Cutout Dimensions)
(Width/Height/Depth)

17 (17 1/8) W
5 13/16 (5 15/16) H
15 3/4 (16 1/2) D

Shipping Weight

43 lbs.

 

Code: # BNK_REF1257S2
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