User guide

Precision 8 OPERATION MANUAL
15
DESIGN APPROACH
Precision 8 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)
Preamp Weight: 14.8 lbs. (6.7 Kg)
Typical performance. Specifications subject to change without notice.