Mic
In to Bal Out: 72dB (60dB preamp gain,
12dB output gain)
Line In to Bal Out: 42dB (30dB preamp
gain, 12dB output gain)
Distortion/Noise
(THD + Noise):
-20dBu
input-Mic; 0dBu input-Line
Both measured at +15dBu output
Mic or Line In to Bal or Line Out: <0.0015%
(Blend set full CCW- no tube)
Mic EIN: -128dBu (150 ohm source, 60dB
gain)
Frequency
response
(20-20kHz, ref 1kHz):
-20dBu
input, +15dBu output
Mic In to Bal Out: +0 /-0.25 dB
0dBu input, +15dBu output
Line In to Bal Out: +0 /-0.5 dB
Phase
response
<+/-
15 degrees
Input
impedance:
Mic
Input (Rear switch in 200 ohm position):
2000 ohms
Mic Input (Rear switch in 50 ohm position):
300 ohms
Line Input (Front panel TRS jack): 1.5
meg ohms
Output
impedance:
Male-XLR
Balanced Output: 100 ohms (50 ohms each
leg)
TRS Line Out: 300 ohms (Impedance Balanced)
Insert
Jack (TRS):
Nominal
level approx 0dBu
Located between SS preamp stage and tube/output
stage
Tip=Send: 50 ohms output impedance
Ring=Return: 7500 ohms input impedance