28A_preamp

Specifications

Click here to view product brochure
Click here to view owner’s manual
Click here to view photo gallery

Overview
The Belles 28A Stereo Reference Preamplifier has a comprehensive number of features designed to produce outstanding performance. All of the analog circuitry in the Belles 28A consists of discrete bipolar transistor class A amplifiers.

The Belles 28A produces a holographic presentation with unprecedented detail, clarity and smoothness. Its dynamics are unheralded due to its high energy power supply using a 50 volt-ampere power transformer and 400,000 microfarads of filter capacitance.
Among its features is a phonograph stage for moving magnet phonograph cartridges and a head amplifier for moving coil phonograph cartridges with a separate RCA jack input for cartridge loading. Moving magnet or moving coil is selected by a switch on the front panel.
In addition to phono moving magnet and moving coil inputs, the Belles 28A has three line level inputs (CD, AUX, and Video) and a line level balanced input. The balanced input is buffered with a differential discrete class A amplifier.
The Belles 28A preamplifier home theater bypass feature routes the signal at the video input directly to the preamplifier outputs with unity gain. The video processor output signals are sent through the preamplifier to the power amplifiers driving the left and right front speakers. A switch on the front panel controls this function.

Outputs -

Inputs -

Manual & Remote controls -

Frequency Response -

Hum and Noise -

Input Impedance -

Distortion -

Maximum Output -

Gain -

Crosstalk -

Output Impedance -

Filter Capacity -

Dimensions -

Shipping Weight -

Power Rating -

Fuse -

Warranty -

2 main stereo outputs

4 line level stereo inputs

Input, Volume, Mute & Power

0.2 Hz to 200,000 Hz +/- 3 dB

>90 dB (A weighted)

50,000 ohms to 100,000 ohms unbalanced

20,400 ohms balanced

Less than .01%

6.7 volts RMS

7.0 dB

60 dB

50 ohms unbalance & 100 Ohms balanced

4 stages of decoupling & 400,000 microfarads total

17" (432 mm) W x 5" (127 mm) H x 12.5" (318 mm) D

26 pounds (11.2 Kg)

120 VAC or 240 VAC at 50/60 Hz

0.5 A Slow Blow

5 years