Digital Performance
A/D Conversion
Test Signal Path: XLR Input - 500 Series A/D Converter - APx555 (ASIO)
Frequency Response:
• -1dB, 2.2Hz to >80kHz
• -0.05dB, 20Hz to 20kHz
THD+N:
• <0.00032% (-110dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted
• <0.00065% (-104dB) @ -1dBFS, 20Hz - 40kHz, 1kHz, A-weighted
THD
• <0.00014% (-117.5dB) @ -8dBFS, 20Hz - 40kHz, 1kHz, A-weighted
• <0.00023% (-113dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted
• <0.0006% (-105dB) @ -1dBFS, 20Hz - 40kHz, 1kHz, A-weighted
Dynamic Range: 121dB A-weighted, AES17 method, 20Hz - 20kHz
Max Input Level: +24dBu

D/A Conversion
Test Signal Path: 500 Series D/A Converter - Insert Send - APx555 (ASIO)
Frequency Response
• -1dB, <1Hz to >61kHz
• -0.05dB, 20Hz to 20kHz
THD+N:
• <0.0003% (-110.5dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted
• <0.0004% (-108dB) @ -1dBFS, 20Hz - 40kHz, 1kHz, A-weighted
THD:
• <0.00014% (-117.5dB) @ -8dBFS, 20Hz - 40kHz, 1kHz, A-weighted
• <0.00018% (-115dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted
• <0.00036% (-109dB) @ -1dBFS, 20Hz - 40kHz, 1kHz, A-weighted
Dynamic Range: 121dB A-weighted, AES17 method, 20Hz - 20kHz
Max Output Level: +24dBu

Clocking
Jitter: <0.5ps

Analogue Performance
Line Outputs (Speaker B, Aux, Mix)
Test Signal Path: DAW 2 D/A Converter - Line Outputs - APx555 (Line In)
Connection Type: 1/4" Jack, Impedance Balanced
Output Impedance: 150ohm balanced, 75ohm unbalanced
Max Output Level: <+22dBu
Freq Response: -1dB, 1.4Hz to >80kHz
THD+N: <0.003% @ +18dBu, 1kHz
Dynamic Range: 105dB A-weighted, AES17 method, 20Hz - 20kHz
Noise Floor: <-93dBu A-weighted, 20Hz - 20kHz, (Unity Gain)

Speaker A Output
Test Signal Path: DAW 2 D/A Converter - Speaker A Line Output - APx555 (Line In)
Connection Type: XLR, Balanced, non-floating
Output Impedance: 150ohm balanced, 75ohm unbalanced (pin 3 unconnected)
Max Output Level: <+26dBu
Freq Response: -1dB, <1Hz to 70kHz
THD+N: <0.0016% @ +24dBu, 1kHz
Dynamic Range: 109dB A-weighted, AES17 method, 20Hz - 20kHz
Noise Floor: <-92.5dBu A-weighted, 20Hz - 20kHz, (Unity Gain)

Talkback Input
Gain: 30dB Fixed Gain Preamp, +20dB Analogue Trim
Phantom Power: Always On

Summing Mixer
Test Signal Path: XLR Input - Summing Mixer Bus (Unity) - A/D Converter 9/10 - APx555 (ASIO)
Freq Response:
• -1dB, 2.25Hz to >80kHz
• -3dB, 1.2Hz
• -0.5dB, 3Hz
THD+N: <0.0007% @ +23dBu (-1dBFS), 1kHz
THD:
• <0.0003% @ +14dBu (-10dBFS), 1kHz
• <0.0004% @ +20dBu (-4dBFS), 1kHz
• <0.00055% @ +23dBu (-1dBFS), 1kHz
Dynamic Range: 108dB A-weighted, AES17 method, 20Hz - 20kHz
Noise Floor (A/D 9-10): -108dBFS A-weighted, 20Hz - 20kHz
Max Contribution Level: +28dBu
Pan Law: -4dB
Noise Floor (Mix Output):
• -90dBu, A-weighted, No channels routed
• -89.5dBu, A-weighted, 1 channel routed (Unity)
• -84dBu, A-weighted, 8 channels routed (Unity)

Headphone Amp
Test Signal Path: DAW 2 D/A Converter - Headphone Output - APx555 (Line In)
Frequency Response: -1dB, <1Hz to >70kHz
THD: <0.0006% (-104.4dB) @ 20dBu, 1kHz, A-weighted, 300ohm load
THD+N: <0.00085% (-101.4dB) @ 20dBu, 1kHz, A-weighted, 300ohm load
Output Impedance: 0.33 Ohms
Output Wattage: 
• 250mW x 2 @ 600 ohms, 1kHz
• 650mW x 2 @ 220 ohms, 1kHz
• 1.21W x 2 @ 100 ohms, 1kHz
• 500mW x 2 @ 32 ohms, 1kHz
Dynamic Range: 114.5dB A-weighted, AES17 method, 20Hz - 20kHz, 300ohm load
Noise Floor: -93.5dBu A-weighted, 20Hz - 20kHz, 300ohm load

System Performance
Analogue Path Phase Performance
Test Signal Path: XLR Input - Empty 500 Series Slot - Summing Mixer Bus (unity) - Monitor Bus - Speaker A Output - APx555 (Line In)
Phase: <3.6° @ 20Hz, <22° @ 20kHz
Test Signal Path: XLR Input - Empty 500 Series Slot - Summing Mixer Bus (unity) - Mix Output - APx555 (Line In)
Phase: <1.5° @ 20Hz, <11° @ 20kHz
Test Signal Path: XLR Input - Camden 500 Preamp (Mic Mode, 6dB Gain) - Summing Mixer Bus (unity) - Speaker A Output - APx555 (Line In)
Phase: <3° @ 20Hz, <13.5° @ 20kHz (Preamp mic mode, 6dB Gain)

Digital Round-trip Performance
Test Condition: 500 Series D/A Converter - 500 Series A/D Converter - APx555 (ASIO)
Dynamic Range: 118dB A-weighted, AES17 method, 20Hz - 20kHz
THD+N: <0.0004% (-108dB) @ -4dBFS, 20Hz - 40kHz, 1kHz, A-weighted

Power
AC Requirements: 100V – 240V AC, 50 – 60 Hz
Total Power Consumption: 24v, 5A DC, 120w
500 Series Slot Current: 250mA per rail
Total Available 500 Series Slot Current: 2A

Environmental
Operating Temperature: +1 to 30 degrees Celsius
Storage Conditions: -20 to 50 degrees Celsius

Dims/Weights
Unit
Width: 481mm(19"), Rackmount
Height: 185mm(7"), 4u
Depth: 219m(8.6")
Unit Weight: 7kg
Shipping Carton
Width: 550mm(21.7")
Height: 280mm(11")
Depth: 335m(13.2")
Weight: 7.5kg

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