Musical Fidelity A308 CR manual Dual Mono Preamplifier, Specifications, Instructions for Use

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A308 CR

 

 

A308 CR

 

 

 

 

 

SPECIFICATIONS :

 

 

Dual Mono Preamplifier

 

 

 

 

 

 

 

 

Output: Voltage RMS, maximum

> 30 Volts

 

 

Power, maximum

> 5 Watts

 

 

Peak-to-peak output current

0.5 Amps

 

 

Impedance

50 Ohms

 

 

Frequency response

20Hz to 20kHz ±0dB

 

 

 

10Hz to 100kHz +0, -1.5dB,

 

 

Line inputs:

 

 

 

Total harmonic distortion + noise, 20Hz to 20kHz Signal / noise reference 1 Volt RMS output Input sensitivity for 1 Volt RMS output

Input impedance

Gain at maximum volume Overload margin Channel separation

>0.0035% (5 Volts output, maximum volume) 104dB (“A”-weighted, at half volume)

240mV

47k Ohms

12.5dB (4.2 times) 31dB

>88dB typical at 1kHz, maximum volume

Phono input:

Frequency response reference

IEC RIAA - see graph ....

20

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

RIAA RESPONSE

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

dB 0

 

 

RIAA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-5

 

 

A308

 

 

 

 

 

 

 

-10

 

 

RIAA/IEC

 

 

 

 

 

 

 

-15

 

 

 

 

 

 

 

 

 

 

-20

 

 

 

 

 

 

 

 

 

 

16

32

63

125

250

500

1.2K

2.5K

5K

10K

20K

 

 

 

 

FREQUENCY

 

 

 

 

Signal / noise ref. 1Volt RMS output

> 95dB Moving Magnet

(“A”-weighted, at half volume)

 

 

> 85dB Moving Coil

(“A”-weighted, at half volume)

 

Input sensitivity for 1 Volt RMS output

2.5mV Moving Magnet,

 

 

 

 

350µV Moving Coil

 

 

 

Input impedance

47k Ohms

 

 

 

Overload margin

31dB

 

 

 

Inputs:

5 pairs line level via RCA connectors

 

 

1 pair phono MM / MC switchable via RCA connectors

 

Outputs:

1 pair RCA connectors main output controlled by volume

 

 

1 pair RCA connectors tape record line level output

 

Power requirements:

100 / 115 / 230V AC 50 / 60Hz (factory preset)

 

 

20 watts maximum

 

 

 

Weight: 20 kg, 44.2 lbs unit only, un-boxed

Dimensions: 440mm, 17.3 inches wide

 

23 kg, 50.8 lbs in shipping carton

 

 

 

143mm,

5.6 inches high including feet

 

 

 

 

 

410mm, 16.1 inches deep including terminals

 

Standard accessories:

IEC type mains lead

 

 

 

 

Remote control handset (universal type)

 

 

2 batteries (AAA, MN2400, LR03)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Musical Fidelity reserves the right to make improvements which may result in specification or feature changes without notice.

Issue 3: July 2002

CR Pre

Instructions for Use Page 9 of 9

A308

Image 9
Contents INSTRUCTIONS FOR USE A308 CRDUAL MONO PREAMPLIFIER SAFETY INFORMATION IMPORTANT! U.K. onlyWARNING - This appliance must be earthed GENERAL ADVICE INSTALLATION PRECAUTIONS and USER INFORMATIONRADIO FREQUENCY INTERFERENCE R.F.I CONNECTIONS AND FACILITIES REMOTE CONTROL REMOTE CONTROLAUXILIARY 1 input select VOLUME UP VOLUME DOWNINPUT CONNECTIONS CONNECTIONSBEFORE SWITCHING ON PRE-AMPLIFIEROUTPUTSTARTING OPERATIONTAPE RECORDING OFF TAPE MONITORINGProblem PROBLEMS ?Possible Cause RemedySPECIFICATIONS Dual Mono PreamplifierA308 CR Instructions for Use