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A308 

CR

Pre

Instructions for Use   Page 9 of 9

Issue 3:  July 2002

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

A308 

CR

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 0, 

-

1

.

5dB,

Line inputs:

Total harmonic dist noise, 20Hz to 20kHz     > 0

.

0035%  (5 Volts output, maximum volume)

Signal / noise reference 1 Volt RMS output

104dB (“A”-weighted, at half volume)

Input sensitivity for 1 Volt RMS output

240mV

Input impedance

47k Ohms

Gain at maximum volume

12

.

5dB (4

.

2 times)

Overload margin

31dB

Channel separation

> 88dB typical at 1kHz, maximum volume

Phono input:

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

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)

SPECIFICATIONS :

RIAA RESPONSE

-20

-15

-10

-5

0

5

10

15

20

16

32

63

125

250

500

1.2K

2.5K

5K

10K

20K

FREQUENCY

dB

RIAA

A308

RIAA/IEC

 

Содержание A308 CR

Страница 1: ...f outstanding musical reproduction Æsthetically the A308 CR Preamplifier is a perfect match for the A308 CR power amplifier and A308 CR CD player Together they form one of the finest hi fi systems available today Dust regularly with a soft duster or soft brush but be careful when using cleaning or polishing agents they may harm the surface finish If you have any questions about your audio system p...

Страница 2: ...ead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured green and yellow must be connected to the terminal in the plug which is marked with the letter E or coloured green or green and yellow or by the earth symbol The wire which is coloured brown must be connected to the terminal which is marked with t...

Страница 3: ...high temperatures operate the unit in a well ventilated area and do not touch the side heatsink fins after periods of use at high output power Do not remove covers or try to gain access to the inside There are no internal user adjust ments Refer all service work to an authorised Musical Fidelity agent NOTE Unauthorised opening of the equipment will invalidate any warranty claims There are fuses in...

Страница 4: ...AUX 2 TAPE TAPE REC 13 14 15 16 17 18 19 20 21 22 23 24 Front panel layout 1 Power on indicator LED blue 2 POWER on off switch 3 TAPE input select button and LED 4 Mute LED 5 CD input select button and LED 6 PHONO input select button and LED 7 TUNER input select button and LED 8 AUXILIARY 1 input select button and LED 9 Volume control knob and LEDs 10 AUXILIARY 2 input select button and LED 11 Inf...

Страница 5: ...ndow on the front of the pre amplifier without visual obstruc tion between them Pressing the volume up or down buttons on the remote handset will advance the motorised volume control in the required direction Pressing the MUTE button mutes the audio output sockets but has no effect on the TAPE OUT sockets for recording To show that the pre amplifier is muted the red LED on the front panel will lig...

Страница 6: ...ct the left and right outputs from your CD player tuner tape deck or phono record deck to the appropriate RCA input sockets on the back panel For the best results we recommend using either Musical Fidelity X LINX no non sense cables for this connection or the highly rated Nu Vista leads with integral RFI suppression Various lengths are available in the Nu Vista interconnect range Please contact yo...

Страница 7: ...s TAPE RECORD output sockets for recording by the external tape deck You will also be able to hear the selected source through the loudspeakers Note adjustment of the volume control has no effect on the recording level A308 CR Pre Instructions for Use Page 7 of 9 Issue 3 July 2002 OPERATION OFF TAPE MONITORING In conjunction with a 3 head cassette deck off tape monitoring allows the user to com pa...

Страница 8: ...power when MAINS Mains plug not inserted Plug in securely POWER switch is operated fully into the rear socket No sound Tape monitor function has Cancel tape monitor been selected see page 7 function by pressing the MONITOR button again Mute function is selected Press mute button on the remote control Wrong connections between Check audio lead inter the A308 CR Pre and ampli connections between the...

Страница 9: ...eference IEC RIAA see graph 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 ma...

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