TRUE Systems PRECISION 8i User Manual
Page 16

PRECISION 8i
OPERATION MANUAL
16
DESIGN APPROACH
PRECISION 8i features a high-voltage composite architecture with discrete devices 
plus integrated circuits. The totally balanced, dual servo, dc-coupled design provides 
exceptional transient response, headroom, imaging and noise performance. Critical 
devices have been selected on the basis of extensive listening tests as well as 
engineering tests. Military grade, hand-matched components are utilized in critical 
circuit areas. These design features result in the transparent, detailed sound quality for 
which 
TRUE preamps have become known.
SPECIFICATIONS
Gain, preamp:
15.5 to 64dB
DI:
–4 to 44dB
Frequency Response:
1.5 Hz to 500kHz (-3dB)
(gain=40dB)
Maximum Output Level:
+31 dBu
Maximum Input Level:
+15 dBu
Noise (Rs=0 Ohms):
-132 dB e.i.n.
Slew Rate:
>40 V/uS
CMRR (CMV= +10 dBu):
85 dB
THD (preamp) (+26dBu, 100kOhm):
.0008%
Input Impedance, preamp:
5.5 kOhm
DI:
2.5 Mohm
Power Consumption:
44W
Preamp Enclosure Dimensions:
17.5 in. (44.5 cm) W, 13.75 in. (35 cm) D, 
1.75 in. (4.5cm) H
Preamp Front Panel Extension:
1 in. (2.5cm)
Power Supply Unit Dimensions:
6.63 in. (16.8 cm) W, 6.4 in. (16.3 cm) D,
Power Supply Unit Height:
1.75 in. (4.5cm) H
Power Supply Unit Rear Extension:
3 in. (7.6 cm)
Preamp Weight:
10.2 lbs. (4.6 Kg)
Power Supply Unit Weight:
5.0 lbs. (2.3Kg)
Typical performance. Specifications subject to change without notice.
