Apollo Twin Hardware Manual Chapter 4: Specifications 26
ANALOG I/O
Line Inputs 1 & 2
Jack Type (combo mic/line balanced inputs) Female ¼” TRS Balanced
Dynamic Range (A–weighting) 117.5 dB
Signal-to-Noise Ratio (A–weighting) 117.5 dB
Total Harmonic Distortion + Noise –108 dBFS
Common-Mode Rejection Ratio (CMRR) Greater than 60 dB (10’ cable)
Frequency Response 20 Hz – 20 kHz, ±0.1 dB
Input Impedance 10K Ohms
Gain Range +10 dB to +65 dB
Minimum Input Level (@ Minimum Gain) 18 dBV
Maximum Input Level (@ Maximum Gain) –37 dBV
Stereo Level Balance ±0.05 dB
Microphone Inputs 1 & 2
Jack Type (combo mic/line balanced inputs) Female XLR Balanced (pin 2 positive)
Phantom Power (switchable per input) +48V
Dynamic Range (A–weighting) 118 dB
Signal-to-Noise Ratio (A–weighting) 118 dB
Total Harmonic Distortion + Noise –110 dBFS
Equivalent Input Noise –127 dB
Frequency Response 20 Hz – 20 kHz, ±0.1 dB
Common-Mode Rejection Ratio (CMRR) Greater than 70 dB (10’ cable)
Default Input Impedance 5.4K Ohms (variable via Unison preamp model)
Gain Range +10 dB to +65 dB
Pad Attenuation (switchable per input) 20 dB (variable via Unison preamp model)
Maximum Input Level (@ Minimum Gain, with Pad) 23.8 dBV
Maximum Input Level (@ Maximum Gain, with Pad) –31.2 dBV
Hi-Z Input
Jack Type Female ¼” TS Unbalanced
Dynamic Range (A–weighting) 117 dB
Signal-to-Noise Ratio (A–weighting) 117 dB
Total Harmonic Distortion + Noise –101 dBFS
Frequency Response 20 Hz – 20 kHz, ±0.1 dB
Input Impedance 1M Ohms
Maximum Input Level (@ Minimum Gain) 10 dBV
Maximum Input Level (@ Maximum Gain) –45 dBV
(continued)
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