Apollo Twin Hardware Manual Chapter 4: Specifications 27
ANALOG I/O
Line Outputs 3 & 4
Jack Type ¼” Female TRS Balanced
Dynamic Range (A–weighting) 118 dB
Signal-to-Noise Ratio (A–weighting) 118 dB
Total Harmonic Distortion + Noise –107 dBFS
Frequency Response 20 Hz – 20 kHz, ±0.1 dB
Stereo Level Balance ±0.05 dB
Channel Separation Greater than 120 dB
Output Impedance 600 Ohms
Maximum Output Level 18 dBV
Monitor Outputs 1 & 2
Jack Type ¼” Female TRS Balanced
Frequency Response 20 Hz – 20 kHz, ±0.1 dB
Dynamic Range (A–weighting) 115 dB
Signal-to-Noise Ratio (A–weighting) 115 dB
Total Harmonic Distortion + Noise –105 dBFS
Channel Separation Greater than 118 dB
Stereo Level Balance ±0.05 dB
Output Impedance 600 Ohms
Output Gain Range –96 dB to 0 dB
Maximum Output Level 18 dBV
Operating Reference Level +14 dBu, +20 dBu (selectable)
Stereo Headphones Output
Jack Type ¼” Female TRS Stereo (unbalanced)
Frequency Response 20 Hz – 20 kHz, ±0.1 dB
Dynamic Range (A–weighting) 113 dB
Signal-to-Noise Ratio (A–weighting) 113 dB
Channel Separation Greater than 110 dB
Total Harmonic Distortion + Noise –101 dBFS
Stereo Level Balance ±0.11 dB
Maximum Output Power 80 milliwatts into 600 Ohms
(continued)