Chord Electronics Ultima Mono Power amplifier

Chord Electronics Ultima Mono Power amplifier.


What we Say:

The Chord Electronics Ultima Mono Power amplifier is the top model in the Chord Ultima range. It is built in a full size double height double depth chassis. The huge chassis enables the Ultima mono amps to deliver 780WPC into 8 ohms. They will also deliver 1400WPC into 4 ohms and 2500WPC into 2 ohms. Peak current delivery is 500A. This is a vast amount of power on tap and one of the most powerful available at anywhere near this price. These mono amps will drive any loudspeakers with extreme ease and offer tons of headroom in any listening room.

The case of the Chord Electronics Ultima Mono is constructed from large milled and anodised aluminium slabs which ooze quality and craftsmanship. As with most Chord Electronics products part of the inside is visible from vents in the top cover. The inside is illuminated using Teal colour LEDs which give the product a striking glow. Metalwork is available in Silver or Black. The pre-amp sits on Integra legs which enable stacking if required.

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What they say:


780w Reference Power Amplifier
A new state-of-the-art flagship power amplifier featuring John Franks’ latest circuit topology, some 30 years in the making.

The ULTIMA mono power amplifiers have been conceived for the very finest high-end audio systems, those which by their very nature, tend to have the most demanding and most difficult-to-drive large loudspeakers. They deliver unsurpassed power delivery and are capable of effortlessly driving any speaker.

ULTIMA is the company’s most accomplished amplifier in its 30-year history and one that draws on Chord Electronics’ three decades of proprietary-technology amplifier manufacturing. It features an all-new circuit topology, the first completely new design since those early days. The new dual-feed forward error-correction amplifier technology is a progression of Dr Malcolm J Hawksford’s (emeritus professor at Essex University) technical paper, refined by Bob Cordell of Bell Labs.

ULTIMA contains Chord Electronics’ next-generation amplifier tech, a design which features Cordell’s advanced dual-feedforward error-correction topology, plus John Franks’ own advanced concepts in ultra-high-frequency power supplies.

The ULTIMA mono amplifier unit has an incredible 64 proprietary MOSFET power devices that demand the most advanced and refined drive circuitry, suitably devoid of sound-degrading components. The drive circuitry features an ultra-low-distortion, high-voltage amplifier operating at very high speed: 300 volts-per-microsecond technologies with advanced feed-forward and feedback compensation techniques.

ULTIMA is incredibly powerful and offers 780 watts into 8 ohms, 1,400 watts into 4 ohms and 2,500 watts into 2 ohms. ULTIMA’s peak output current exceeds 500 amps, an extremely high current differentiated by the speed at which the dynamic peaks can be delivered, bringing astonishing dynamics, fidelity and unrivalled musicality.

ULTIMA is truly an unprecedented amplifier design with exceptional performance and is one of the most advanced hi-fi amplifiers in the world.


1x Balanced XLR Inverted Input

1x Balanced XLR Non-inverted Input

1x Gold Plated Unbalanced RCA Inverted Input

1x Gold Plated Unbalanced RCA Non-inverted Input

1x 12v Trigger Input – Chord Electronics Auto Start


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


780w into 8Ω
Class AB Sliding Bias
HF Switch Mode Power Supply
Proprietary Chord MOSFETs
Fully Balanced Circuitry
Convection Cooled
Balanced XLR Inverted Input
Balanced XLR Non-inverted Input
Unbalanced RCA Inverted Input
Unbalanced RCA Non-inverted Input
12v Trigger On/Off Input
Dimmable feature lighting
Included Top Light Ring
Solid Aluminium Chassis

Output Power:

780w RMS per channel @ 0.005% distortion into 8Ω

1405w RMS per channel into 4Ω

Frequency Response:

-1dB @ 0.2Hz to 46kHz and -3dB 0.1Hz to 200kHz

Signal to Noise Ratio:

Better than -90dB

Input Impedance:

100kΩ Unbalanced/Balanced

Output Impedance:


Dimensions with included Integra Legs:

30.5cm (H) x 48cm (W) x 75cm (D)

Dimensions with optional Side Blocks:

28.5cm (H) x 42cm (W) x 75cm (D)