Out of Stock

Accuphase E-550 Integrated Amplifier

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Sunning E-550 Integrated amplifier complete with box remote instructions etc.

£5,500.00 £3,250.00

Call Choice Hifi on 020 8392 1959 or to enquire about this product!


The ultimate integrated pure class A amplifier – Power MOS-FETs arranged in triple parallel push-pull configuration. Innovative AAVA volume control. Strong power supply with large toroidal transformer and high filtering capacity supports linear output progression of 120 watts/ch into 2 ohms, 60 watts/ch into 4 ohms, or 30 watts/ch into 8 ohms. Power amp section uses current feedback for optimum high-frequency phase characteristics and MCS+ topology.

  • Revolutionary AAVA volume control
  • Power MOS-FETs in triple parallel push-pull configuration driven in pure class A
  • Current feedback principle and MCS+ topology in power amplifier section
  • Logic-control relays for straight and short signal paths
  • Tone control circuits
  • Strong power supply with large transformer
  • Option board slots provide capability for digital signal input and analog record playback

Brand: Accuphase

Model Name/Number: E-550

Price (RRP): £5500

Choice Hifi Price: £3250

Product Information:


Continuous Average Output Power (both Channels driven, 20-20,000Hz)

150 watts per channel into 1 ohm (Music only)

120 watts per channel into 2 ohm

60 watts per channel into 4 ohm

40 watts per channel into 6 ohm

30 watts per channel into 8 ohm

Total Harmonic Distortion (both channels driven 20-20,000Hz)

0.05% 2-ohm load

0.02% 4-16 ohm load

Intermodulation Distortion 0.01%

Frequency Response

Power Input: 20-20000Hz +0, -0.02 dB (for rated continuous average output 2-150,000Hz +0,, -3.0 dB; 1 watt output)

high Level Input: 20-20,000 Hz +0, -0.2 dB (for rated continuous average output)

Damping Factor 140 (with 8 ohm load, 50 Hz)

Input Sensitivity; Input Impedance

High Level Input 77.7 mV, 14.2 mV (for 1 W output)  14.2 mV; 20 KOhm

Balanced Input 77.7 mV, 14.2 mV (for 1 W output)  14.2 mV; 40 KOhm

Power Input 0.617 V 113mV; 20 KOhm

Output Voltage; Output Impedance

Pre-Out 0.617 V: 50 Ohm (at rated continuous average output)


High Level Input- Pre Output 18 dB

Power Input- Output 28 dB


Tone Controls

Bass 300Hz +/- 10 dB (50Hz)

Treble 3 kHz =/-10dB (20 kHz)

Loudness Compensation +6 dB (100 Hz)

Attenuator -20dB

Signal to Noise Ratio (Input shorted (a weighting) at rated output: EIA S/N

High Level 98dB; 103 dB

Balanced Input 92dB; 103 dB

power Input 120 dB; 117 dB

Load Impedance 2-16 Ohms

Power Requirements AC 120/230V 50/60 Hz as indicated on back panel


Width 465 mm Height 196 mm Depth 427 mm

Weight 23.9 Kg Net/ 30 Kg in carton



Age: 7

Condition: 9/10

Voltage: N/A

Finish/Colour: Champagne

Packaging? Yes

Accessories? Yes

Item Location: In Stock

Status: Second Hand

Dimensions 5708473 cm