Musical Fidelity M6500i Amplifier
The Musical Fidelity M6500i Super Integrated Amplifier is a separate preamp with two monobloc power amps sharing a common chassis. Each has its own heat sink and separate transformer. Genuinely dual mono.
The preamp input sockets are connected directly to the main preamp PCB. There are no wire connections from the inputs to the preamp. Consequently, PCB tracks are very short. This elegant idea ensures that both channels signals are ultra low impedance from the instant they get into the amplifier.
Each channel has twelve big bipolar transistors. 200 amps peak to peak is easily available.
The metalwork is high quality. The front panel is a custom made fine line extrusion of milspec aluminium. The custom made heat sinks have outstanding dissipation characteristic and finish.
The Musical Fidelity M6500i Super Integrated Amplifier construction has the feeling of solidity and quality.
The Musical Fidelity M6500i Super Integrated Amplifier delivers 500 + 500 wpc into 8 ohms. It is extremely stable and very linear.
The distortion is low too; about 0.008% @ 1 kHz and @ 20 kHz it is 0.015%. More significant, perhaps, is the very low distortion at ultra-high frequencies: @ 30 kHz, it is 0.02% and @ 50 kHz it is 0.02%.
The Musical Fidelity M6500i Super Integrated Amplifier has remarkable linearity and consistency. It is unconditionally stable and will drive any loudspeaker in existence easily with ample power reserve.
The overwhelming majority of amplifier manufacturers only talk about distortion at 1 kHz. We believe that this is only a fraction of the story. From our perspective, an amplifier must have very low distortion from 20 Hz – 20 kHz and beyond. We believe that an amplifier’s VHF performance proves the total performance of the circuit and PCB layout. The Musical Fidelity M6500i Super Integrated Amplifier’s distortion hardly changes from 10 kHz to 50 kHz. An outstanding achievement and validation of the circuit design and PCB layout.
Amplifiers should be quiet. If they are not low level detail is irretrievably lost. Also, the dynamic range is seriously compromised. Dynamic range is not just how much power an amplifier will produce, it is also how quiet it can be. Dynamic range is the total from the quietest to the loudest. The Musical Fidelity M6500i Super Integrated Amplifier excels in this respect.
The Musical Fidelity M6500i Super Integrated Amplifier has a precision digital volume control. This ensures perfect tracking right down to very low level. This outstanding precision is achieved by laser trimmed substrate resistors. When the M6 500i is switched off, it will remember the previous volume control setting. It will be the same for the next listening session.
The Musical Fidelity M6500i Super Integrated Amplifier is effortless, fluid and dynamic. It doesn’t sound ‘loud’. It just sounds right. The dynamics are handled with no drama or fuss. They come and they go. There is no distortion; just pure undiluted music.
Musical Fidelity M6500i Super Integrated Amplifier Specification:
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Power 500 Watts per channel into 8 Ohms (27dBW) Maximum output voltage 64 Volts RMS, 20Hz to 20 kHz; onset of clipping (179 Volts peak-to-peak) Maximum peak output current 100 Amps Damping factor >250 Output devices 6 pairs per channel
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THD+N <0.01% typical, 20Hz to 20 kHz Signal / noise ratio >100dB ‘A’-weighted Input impedance 38k
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Ohms Frequency response +0, –0.1dB, 10Hz to 20 kHz
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Line level inputs 1 pair line level XLR (balanced) connectors 4 pairs line level RCA connectors
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Line level outputs 1 pair line level RCA connectors, constant level TAPE outputs 1 pair line level RCA connectors, preamp outputs for e.g. biamping
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Speaker outputs 2 pairs heavy duty 4mm banana plug/binding posts per channel
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Mains voltages 115/230VAC 50/60Hz (factory pre-set) 100VAC 50/60Hz (alternative)
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Consumption 0.25 Watts standby (Orange LED lit)
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150 Watts on, idle (Blue LED lit, no signal)
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2000 Watts maximum (Blue LED lit, full power output)
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Unit only, unboxed 28 kg (61 ⅔ lbs) In shipping carton 33 kg (72 ⅔ lbs)
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Width 440 mm (17 ⅓”) Height (including feet) 160 mm (6 ⅓”) Depth (front to back) including terminals 460 mm
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