Saturday, 19 May 2012


Contacting Us

Tel: 01403 782221

Mob: 07950 274224

Email: info@rocksolidsounds.co.uk

Address:
The Old Barn 
Rosier Business Park
Coneyhurst Rd 
Billingshurst, West Sussex
RH14 9DE

welcome to the audio barn

 

View our online catalogue

View our online brochure



22A Vacuum Tube Hybrid Stereo Line Pre

Belles 22A Preamplifier

Top Image

The performance and engineering found in the Belles 22A is typically reserved for higher priced components. Internally the 22A utilises a hybrid vacuum tube design.

The unit uses two 12AU7 valves in conjunction with power mosfet regulators. Also providing isolation from the power supply, which in turn greatly improves the stereo imaging.

Distortion on the Belles A22 is extremely low, which brings out the dynamics and detail, within the music. The emitter follower output is biased with a constant current source instead of a resistor.

Belles A22 pre amplifier has been designed to remove variances in vacuum tube behaviour due to manufacturing indifferences and tube aging.

Externally the Belles A22 is visually a work of art. The entire chassis is made of brushed anodised aluminium. The front panel is 38mm thick, machined and engraved, come in either Black or Silver

The A22 is one of the most outstanding value for money pieces that power modules have produced.

Belles Preamp


Belles Preamp


Belles Preamp


Belles Preamp

Specifications

General
Controls Listen, record, Volume and Balance
Remote Controls Power On/Off, Mute, Volume, Input and Mon
Dimensions 17 (432mm) W x 3.5 (89mm) H x 14 (330mm) D
Shipping Weight 19 pounds (11 Kg)
Power 120 VAC or 240 VAC @ 50/60 Hz
Power Rating 50 volt amperes toroidal transformer
Fuse 0.5A Slo Blo
Filter Capacity 400,000 microfarads total
Warranty 5 years

Line Section
Frequency Response 20 Hz to 20,000 Hz +/- 3 dB
Hum and Noise >90 dB A weighted
Distortion less than 0.01% IM and THD
Input Impedance 20,400 ohms centre tapped balanced
50,000 to 100,000 ohms unbalanced
Output Impedance 50 ohms unbalanced
100 ohms centre tapped balanced
Maximum Output 6.7 volts rms
Gain 4.92 or 13.84dB
Crosstalk 60 dB between channels immeasurable between inputs