Out of Stock

Musical Fidelity 550K Supercharger monoblock power amplifier

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The same 550W monoblock amplifier circuit used in Musical Fidelity’s kW550 integrated amplifier—which, MF claims, is quiet, linear, tonally superb, and produces high powers—550W into 8 ohms or 750W into 4 ohms—with ultra-low levels of distortion. MF claims the 550K delivers about 250 amps of current peak–peak, with a massive voltage swing.

£3,000.00 £1,590.00

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


New Old stock. This item was first unboxed last year and has had light use ever since.

Brand: Musical Fidelity

Model Name/Number: 550K Supercharger monoblock power amplifier

Price (RRP): £3000

Choice Hifi Price: £1590

Product Information:


Solid-state, monoblock power amplifier with line- and speaker-level inputs. Maximum power output: 550W into 8 ohms (27dBW), 750W into 4 ohms (25.75dBW). Maximum output voltage: 66V RMS, 20Hz–20kHz; 186V peak–peak. Maximum current: 250 amps peak–peak. Frequency response: 20Hz–30kHz, +0/–0.2dB. THD+noise: <0.016%, 20Hz–20kHz. Damping factor: 220. Input impedance: 50k ohms (line), 50 ohms (speaker). Input sensitivity for full power out into 8 ohms (line): 2.23V, speaker 33V. Signal/noise (no reference level quoted): >120dB (line input), >115dB (speaker input).
Dimensions: 15.75″ (404mm) H (including feet) by 8.4″ (215mm) W by 8.6″ (220mm) D (including terminals). Weight: 75.1 lbs (34.1kg).
Read more at http://www.stereophile.com/content/musical-fidelity-550k-supercharger-monoblock-power-amplifier-specifications#xdpQ7aF18m1Hkybo.99

Age: 9 Years

Condition: 10/10

Voltage: 220/240/50Hz

Packaging? Yes

Accessories? Yes

Item Location: In Stock

Status: Second Hand

Dimensions 5708473 cm