Tri-Vista Pre Instructions for Use Page 11 of 11
Issue 1: April 2003
SPECIFICATIONS :
Musical Fidelity reserves the right to make improvements which
may result in specification or feature changes without notice.
Tri-Vista
Pre Amplifier
Output: Voltage RMS, maximum
> 55 Volts
Peak-to-peak instantaneous output current
20 Amps
Impedance
< 0
.
1 Ohm
Frequency response
20Hz to 20kHz ±0dB
10Hz to 0,
-
1
.
5dB
Line inputs:
Total harmonic dist noise, 20Hz to 20kHz > 0
.
0027% (5 Volts output, maximum volume)
Signal / noise reference 1 Volt RMS output
> 100dB (“A”-weighted, at half volume)
Input sensitivity for 1 Volt RMS output
240mV
Input impedance
500k Ohms
Gain at maximum volume
12
.
5dB (4
.
2 times)
Overload margin
35dB for rated input at maximum volume
Channel separation
> 110dB 20Hz to 20kHz, 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
-25
-20
-15
-10
-5
0
5
10
15
20
25
10
16
25
40
63
100 160
250
400
630 1.25K 2K 3.15K
5K
8K 12.5K 20K
FREQUENCY (Hz)
dB
IEC
RIAA
MM : All switches up : 68k Ohms in parallel with 47pF,
Switch no. 1 down : 47k Ohms + 47pF,
Switch no. 2 down : extra 50pF added,
Switch no. 3 down : extra 100pF added,
Switch no. 4 down : extra 200pF added
Overload margin
31dB
Inputs, per channel module:
5 line level via RCA connectors
1 phono Moving Magnet via RCA connector
1 phono Moving Coil via RCA connector
Outputs, per channel module:
2 RCA connectors main output controlled by volume
1 RCA connector tape record line level output
Power requirements:
100 / 115 / 230V AC 50 / 60Hz (factory preset)
60 watts maximum
Dimensions:
Main unit 483mm, 19 inches wide
Power supply 483mm, 19 inches wide
166mm, 6
.
54 inches high (inc feet)
166mm, 6
.
54 inches high (inc feet)
472mm, 18
.
58 inches deep (inc
425mm, 16
.
73 inches deep (inc rear
knobs and rear terminals)
fuse holder)
Weights:
Main unit 25
.
5Kg, 56lbs unit only, unboxed
Power supply 25
.
2Kg, 55
.
6 lbs unit only
30Kg, 66
.
1 lbs in shipping carton
30
.
3Kg, 66
.
8 lbs in shipping carton
Standard
IEC mains lead - 16 Amp type, four low-voltage power interconnect leads, remote control handset,
accessories:
2 batteries size LR06 or AA, manganese alkaline
Input impedance
MC : Switched,
10 Ohms or 100 Ohms
in parallel with 470pF
