Musical Fidelity A308 用户手册

Issue 3: March 2003

Output:

Voltage RMS:

35 Volts  20Hz to 20kHz

Peak:

99 Volts

Power:

150 Watts per channel into 8 Ohms (21.8dBW),
300 Watts per channel into 4 Ohms

Peak-to-peak output current:

48 Amps

Damping factor:

140

Output devices per channel:

4

Pre-output impedance:

50 Ohms

Line inputs:

Total harmonic distortion + noise, 20Hz to 20kHz

< 0.008%

Signal / noise ratio

> 100dB ‘A’-weighted

Input sensitivity for 150 Watts into 8 Ohms

270mV

Input impedance

220k Ohms

Overload margin 

26dB

Channel separation

> 70dB 20Hz to 20kHz

Frequency response

20Hz to 20kHz, +0, -0.2dB

Auxilliary 2 (Home Theatre Direct) input:

Input sensitivity

30dB gain (31.5 times) nominal

Phono input:

Frequency response reference
IEC RIAA  -  see graph....

Signal / noise ratio

> 96dB Moving Magnet

‘A’-weighted

> 89dB Moving Coil

‘A’-weighted

Input sensitivity

2.5mV Moving Magnet
350µV Moving Coil

Input impedance

47k Ohms

Overload margin

24dB

Inputs:

4 pairs line level RCA connectors,
1 pair (Aux 2) direct power amplifier input RCA connectors,
1 pair phono (MC or MM, switchable) RCA connectors

Outputs:

2 amplifier channels via 2 pairs per channel binding posts.
1 pair RCA audio outputs controlled by the volume,
1 pair RCA tape record fixed line level output.

Power requirement:

100 / 115 / 230Volts AC 50 / 60Hz (factory pre-set),
550 Watts maximum into 8 Ohms
39 Watts idle

Weight:

20.5 kg, 45.5 lbs unit only, unboxed

Dimensions:

440 mm, 17.3 inches wide

23.5 kg, 48.5 lbs in shipping carton

143 mm,  5.6 inches high including feet
420 mm, 16.5 inches deep including terminals

Standard accessories:

IEC type mains lead, remote control (universal), 2 batteries (type SUM-4, AAA, LR03)

-20

-15

-10

-5

0

5

10

15

20

16

32

63

125

250

500

1.2K

2.5K

5K

10K

20K

RIAA

A308

RIAA/IEC