Chord Electronics ULTIMA 780W Flagship Mono Power Amplifier

Description

ULTIMA

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 and are capable of effortlessly driving any speaker.

ULTIMA is the company’s most accomplished amplifier in its 34-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 the company’s inception. 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, with the important addition of 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, timing accuracy 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.

Features

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

Specifications

• Inputs:
• 1 x Balanced XLR Inverted Input.
• 1 x Balanced XLR Non-inverted Input.
• 1 x Gold Plated Unbalanced RCA Inverted Input.
• 1 x Gold Plated Unbalanced RCA Non-inverted Input.
• 1 x 12v Trigger Input – Chord Electronics Auto Start.
• Output:
• 2 x Pair of High Quality, High Current, Gold Plated Type Speaker Terminals (Bi-wireable).
• Output Power: 780 W RMS per-channel into 8 Ω / 1405 W RMS per-channel into 4 Ω
• Power Consumption: Full power 3500 W / Standby 10 W
• THD: 0.005 %
• Frequency Response: -1 dB @ 0.2 Hz – 46 kHz / -3 dB 0.1 Hz – 200 kHz
• Signal-to-Noise Ratio: Better than -90 dB
• Input Impedance: 100 kΩ Unbalanced / Balanced
• Output Impedance: 0.04 Ω
• Gain: 30 dB
• Dimensions (H x W x D, with included Integra legs): 30.5 x 48 x 75 cm
• Dimensions (H x W x D, with optional side blocks): 28.5 x 42 x 75 cm
• Weight: 66.7 kg

Included

• ULTIMA Quickstart guide.
• Safety instructions.
• 15 A Mains IEC cable.

Full Chord Electronics Range Available

Unilet Sound & Vision are official retail partners for Chord Electronics, providing sales, advice and assistance on their entire range of high-quality products. Please do get in touch if you would like a demonstration or wish to purchase.

More Information

• Ultima, by Chord Electronics