Specifications

APPENDIX
7-2
BOULDER 2010 BALANCED ISOLATED PREAMPLIFIER SPECIFICATIONS
Balanced Inputs 6
Main Balanced Outputs 2
Record Balanced Outputs 2
Maximum Input Level 7 Vrms
Maximum Output Level 28Vrms
THD+N, 2V Output, from 20 Hz to 5 kHz 0.0008% (-102 dB)
at 20 kHz 0.001% (-100 dB)
Output loaded with 150Ω Less than 1/2 dB distortion change
Maximum Voltage Gain 20 dB
Volume Range 100 dB
Volume Steps 0.1, 0.5, 1.0 dB ±0.01 dB
Record Path Gain 12 dB
Frequency Response, 20 Hz to 20 kHz +0.00, -0.03 dB
Frequency Response, -3 dB at 0.02 Hz & 300 kHz
Crosstalk, L to R or R to L -136 dB or better 20 Hz to 20kHz
Crosstalk, Adjacent Inputs -136 dB or better 20 Hz to 20kHz
Crosstalk, Main to Record -132 dB or better 20 Hz to 20kHz
Input Impedance 333 kΩ Balanced
Output Impedance 100Ω Balanced
Preamp Size, W X H X D 18.0 x 6.875 x 16.25 inches
Power Supply Size, W X H X D 18.0 x 4.25 x 15.5 inches
Power Requirements 90-120 V / 200-240 V, 50-60 Hz, 240 W Max. (180 W nominal)