Belles 150A Reference V2 Power Amplifier

Building upon the successful platform that was the 150A reference amplifier. The new Version (V2) offers improved performance at a more advantageous price than its predecessor.

The new Belles reference 150A V2 has improved musicality, lower noise floor and a higher damping factor than the original model, which improved speaker driving ability and the ability to 'free' the music from the confines of the speaker boundaries.

Circuit construction using dual matched J-FETS/Bi-Polars in a cascaded differential pair. Bi polar voltage gain with a final stage using source follower with 8 power mosfets in class 'B'

The Reference 150 V2 is one of those rare products that meld art and science in a way that grips hearts and minds with soul stirring energy.

Belles reference 150A V2 utilizes a dual mono design topology. This gives the amplifier better isolation between channels. Soundstage imaging is improved, offering true soundstage width and depth. Instrument placement and layering are more accurate, revealing the depth and texture of each instrument or vocalist. Each channel shares a common 650VA toroidal transformer. By using a larger single transformer, rather than two smaller ones as in typical dual mono designs, stronger and cleaner bass is maintained.

Negative feedback is used to stabilize the gain and reduce distortion, noise and output impedance. DC stability and speaker offset voltage is properly regulated by using an accurately trimmed DC servo amplifier. This method introduces less coloration than using coupling capacitors.

The Belles reference 150A V2 has been engineered to be among the most effective products on the market at dampening the back EMF from speakers. The results are heard as tightly controlled bass that has detail, texture, improved depth and separation.

The technology behind the Belles reference 150A V2 is impressive. Even more impressive, however, is the sound. Listening to the V2 has been described as a memorable experience; you feel as though you are part of the musical performance.

Belles Reference 150 V2 Specifications

Power: 125 watts per channel at 8 ohms

Power: 250 watts per channel at 4 ohms

Power: 500 watts per channel at 8 ohms (monoblock setting)

Distortion: THD and IM less than 0.1% rated power

Damping Factor: over 1000

Peak Current: over 30 amperes

Input Sensitivity: 1.4V of rated power

Input Impedance: 100Khz

Hum and Noise: over 100 dB A weighted

Frequency Response: 0.2Hz - 100Khz

Dimensions: 432mm W x 133mm H x 330mm D

Weight: 20Kg