Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER - Manual (Page 60)

Specifications
Inputs
3 CAST via 4-pin bayonet connectors
3 balanced via XLR connectors
4 single-ended via RCA connectors
Tape input
1 balanced via XLR connector or
1 single-ended via RCA connector,
user configurable
Main outputs
2 CAST via 4-pin bayonet connectors
1 balanced via XLR connector
1 single-ended via RCA connector
Tape outputs
1 balanced via XLR connector and
1 single-ended via RCA connector,
buffered, connected to main input-
selection bus
1 balanced via XLR connector and
1 single-ended via RCA connector,
buffered, connected to a dedicated
record-output bus
Control inputs
1 RS-232 input via a 9-pin D-subminiature
connector
1 remote IR detector input via
a 3-conductor 3.5 mm connector
1 12 VDC trigger input via 3.5 mm
connector
1 preamplifier link via an RJ-45 connector
Control outputs
2 individually programmable 12 VDC
trigger outputs via 3.5 mm connectors
1 preamplifier link via an RJ-45 connector
Power output
1 phono power output (±20 VDC) for KPE
via a 9-pin D-subminiature connector
Input impedance
CAST: 35 Ohms
Balanced: 40 k Ohms
Single-ended: 20 k Ohms
Output impedance
CAST: >1 M Ohms
Balanced: 250 Ohms
Single-ended: 125 Ohms
Gain
12 dB (CAST or balanced output)
6 dB (single-ended output)
56
Volume control
Balanced, current-mode,
16-bit, discrete R-2R ladder
Input overload
CAST: 11 mA RMS
Balanced: 9 V RMS
Single-ended: 18 V RMS
Output overload
CAST: 22 mA RMS
Balanced: 20 V RMS
Single-ended: 10 V RMS
Frequency response
20 Hz to 20 kHz ±0.01 dB
Balanced or single-ended inputs:
0.2 Hz to 1.3 MHz +0, -3 dB
CAST inputs:
0.2 Hz to 2 MHz +0, -3 dB
Total harmonic distortion plus noise
Balanced Output:
<0.003%, 20 Hz to 20 kHz, 4 V RMS
CAST output: 4 mA RMS
Signal-to-noise ratio
4 V RMS balanced or 4 mA RMS CAST output
Wideband, unweighted: >97 dB
“A” weighted: >104 dB
Power consumption
Standby: 50 W
Power on: 80 W
Power on, with KPE: 90 W
Dimensions
Preamplifier only:
17.3 in.W x 3.7 in. H x 18.5 in. D
43.8 cm W x 9.5 cm H x 47 cm D
Power supply only:
17.3 in. W x 3.7 in. H x 17.3 in. D
43.8 cm W x 9.5 cm H x 43.8 cm D
Preamplifier channel:
17.3 in. W x 7.3 in. H x 18.5 in. D
43.8 cm W x 18.5 cm H x 47 cm D
Stereo pair:
17.3 in. W x 14.6 in. H x 18.5 in. D
43.8 cm W x 37.1 cm H x 47 cm D
Weight
Shipped: 69 lbs., 31.2 kg
Preamplifier only: 21 lbs., 9.5 kg
Power supply only: 31 lbs., 14 kg