Apollo Twin Hardware Manual
Chapter 4: Specifications
27
ANALOG I/O
Line Inputs 1, 2
Jack Type
Female ¼” TRS Balanced
Dynamic Range (A–weighting)
117.6 dB
Signal-to-Noise Ratio (A–weighting)
117.8 dB
Total Harmonic Dist Noise
–108.9 dB
Common-Mode Rejection Ratio (10’ cable)
65.6 dB
Frequency Response
20 Hz – 20 kHz, ±0.05 dB
Channel Separation (Crosstalk)
–138 dB
Input Impedance
10 Kilohms
Gain Range
+10 dB to +65 dB
Max Input Level (Reference Level @ +4 dBu)
???
17.9 dBV
??? (no +4/-10 input switch)
Max Input Level (Reference Level @ -10 dBV)
???
–5.9 dBV
??? (no +4/-10 input switch)
Stereo Level Balance
±0.01 dB
Microphone Inputs 1, 2
Jack Type
Female XLR Balanced (pin 2 positive)
Phantom Power (switchable per input)
+48V
Dynamic Range (A–weighting)
118.3 dB
Signal-to-Noise Ratio (A–weighting)
118.2 dB
Total Harmonic Dist Noise
–110 dB
Equivalent Input Noise
–127 dB
Frequency Response
20 Hz – 20 kHz, ±0.06 dB
Common-Mode Rejection Ratio
–75.1 dB
Default Input Impedance
5.6 Kilohms (variable via Unison feature)
verify ok
Gain Range
+10 dB to +65 dB
Pad Attenuation (switchable per input)
20 dB
Maximum Input Level (Minimum Gain, with Pad)
??? missing
Maximum Input Level (Maximum Gain, with Pad)
??? missing
Hi-Z Input
Jack Type
Female ¼” TS Unbalanced (mono plug required)
Dynamic Range (A–weighting)
117.5 dB
Signal-to-Noise Ratio (A–weighting)
108.9 dB
Total Harmonic Dist Noise
–101 dB
Frequency Response
20 Hz – 20 kHz, ±0.06 dB
Input Impedance
22 Kilohms to 2.2 Megohms (variable via Unison
feature)
verify ok
Maximum Amplitude A and B
what is this???
10 dBV
verify?
Maximum Input Level (Minimum Gain)
??? missing
Maximum Input Level (Maximum Gain)
??? missing
(continued)
