Mezzo 140

140w Stereo Power Amplifier

Featuring technology deprived from our legendary SPM range, the Mezzo 140 is an incredibly compact amplifier that punches well above its weight, to powerful levels, with stunning clarity.

Range: Choral
Colour options:

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The Mezzo 140 is a high-quality compact power amplifier designed to partner with a number of products from our Choral range. It was conceived to offer generous levels of power within a stylish and attractive chassis. Developed from the original Mezzo designs, the Mezzo 140 features four of our ultra-high-frequency power supplies with unique drive circuitry, plus a massive additional bank of energy-storage capacitors.

Its configuration offers performance in line with our full-sized products including increased voltage swing, a greater dynamic range and the ability to cope with demanding loudspeaker loads. The Mezzo 140 is rated at 140 watts into 8 ohms, but for even greater headroom, the Mezzo 140 can be run in bridged mono mode with a second Mezzo 140, providing 280 watts into 8 ohms. An automatic bridging mode feature allows bridged mono operation without additional cables.

The amplifier is supplied with high-quality gold-plated WBT speaker binding posts and further features include two phase-shift toggle switches on the rear panel, one for each output, to account for various speaker configurations.

Other accessories & custom options

Precision machined from a solid block of aircraft grade aluminium, a work of art on its own, the Ensemble Stand is irrefutably the most satisfying way to display your Choral system components or stack.


1x Stereo Pair of Gold Plated Balanced XLR Inputs

1x Stereo Pair of Gold Plated Unbalanced RCA Inputs


2x Pair of High Quality, High Current, Gold Plated Type Speaker Terminals (Bi-wireable)

Key Features

140w into 8Ω
>-103dB Signal to Noise Ratio
Class AB Sliding Bias
HF Switch Mode Power Supply
Chord MOSFET Construction
Fully Balanced Circuitry
Fan Cooled
Stereo Balanced XLR Inputs
Stereo Unbalanced RCA Inputs
Solid Aluminium Chassis
Bridgeable to 200w into 8Ω

Included Accessories

1.5m 10a IEC Mains Power Lead
Mezzo 140 Owners Manual

Output Power:

140w RMS per channel @ 0.016% distortion into 4Ω

Frequency Range:

5Hz – 100kHz +/- 0.5dB

Signal to Noise Ratio:

Better than -103dB

Channel Separation:

Better than 95dB

Input Impedance:

100kΩ Unbalanced/Balanced

Input Capacitance:


Output Inductance:


Slew Rate:

70v per μS 1kHz, 20v Square Wave





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