Description
Chord Electronics Ultima 780w Reference Mono Power Amplifier
The Chord Electronics Ultima 780w Reference Mono Power Amplifier 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.
The Reference Mono Power Amplifier 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 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.
Reference Mono Power Amplifier 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.
So, the Reference Mono Power Amplifier is truly an unprecedented amplifier design with exceptional performance and is one of the most advanced hi-fi amplifiers in the world.
Inputs:
- 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
Output:
- 2x Pair of High Quality, High Current, Gold Plated Type Speaker Terminals (Bi-wireable)
Features
- 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 Inputt
- Unbalanced RCA Non-inverted Input
- 12v Trigger On/Off Input
- Dimmable feature lighting
- Included Top Light Ring
- Solid Aluminium Chassis
Specifications
- Output power:
- 780 W RMS per channel into 8 Ω
- 1,405 W RMS per channel into 4 Ω
- Power consumption:
- Full power – 3,500 W
- Standby – 10 W
- THD: 005 %
- Frequency response: -1 dB @ 0.2 Hz to 46 kHz and -3 dB 0.1 Hz to 200 kHz
- Signal to noise ratio: Better than -90 dB
- Input impedance: 100 kΩ Unbalanced/Balanced
- Output impedance: 04 Ω
- Gain: 30 dB
- Dimensions with included Integra legs: 5 cm (H) x 48 cm (W) x 75 cm (D)
- Dimensions with optional side blocks: 5 cm (H) x 42 cm (W) x 75 cm (D)
- Weight: 66.7 kg
