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Cranborne Audio 500R8 USB Audio Interface 8 Slot 500 Series Rack
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- 28-in/30-out USB 2.0 audio interface
- Low-latency USB 2.0 interface with high-stability and compatibility with a wide range of PC/macOS devices.
- ADAT I/O (16/16 channels @ 44.1/48kHz, 8/8 channels @ 88.2/96kHz)
- S/PDIF I/O
- 5-pin MIDI I/O
- High-performance A/D-D/A conversion
- Dynamic Range: 121dB A-weighted, AES17 method, 20Hz – 20kHz
- Frequency Response: -1dB, 2.2Hz to >80kHz
- THD+N: <0.00032% (-110dB) @ -4dBFS, 20Hz – 40kHz, 1kHz, A-weighted
- Max I/O Level: +24dBu
- Master reference-quality internal clock
- Capable of 44.1, 48, 88.2, 96, 176.4, and 192kHz operation
- <0.5ps of jitter
- Dedicated Word Clock Input and Output via BNC
- External sync options using Word Clock BNC, S/PDIF, or ADAT
- Monitor controller with talkback
- Speaker A/B switching, Mono check, Dim, Mute, and 28-segment peak meter
- Dedicated talkback input with phantom power, push-to-talk activation, and automatic routing to all headphones and C.A.S.T. facilities
- Easy-access illuminated front panel controls for all monitor controller functions.
- Analogue summing mixer
- 8-into-2 analogue summing mixer with +26.5dBu of headroom, dedicated ADC, and balanced 1/4″ jack outputs
- C.A.S.T. link port for increasing summing mixer to 16-into-2 using Cranborne Audio 500ADAT
- Zero-latency artist mixer
- Zero-latency analogue artist mixer with physical level/pan controls per channel and DAW return blend controls
- 2 high-power headphone outputs with independent blend and level controls
- Reference-Quality Headphone Outputs
- THD+N: <0.0006% (-104.4dB) @ 20dBu, 1kHz, A-weighted, 300ohm load
- Output Wattage (1kHz): 250mW x 2 @ 600 ohms, 650mW x 2 @ 220 ohms, 1.21W x 2 @ 100 ohms, 500mW x 2 @ 32 ohms
- Frequency Response: 1dB, <1Hz to >70kHz
- High-current 8-slot 500 series rack
- 250mA current per-slot with 2A total for all slots
- XLR inputs, XLR line outputs, and TRS Inserts (pre-ADC) per 500 series slot
- Module source switching options to send Analogue, USB or external C.A.S.T. signals through your favourite 500 series modules
- Module bypass switches per-slot allowing 500R8 to be used without 500 series modules inserted.
- C.A.S.T. Compatible
- C.A.S.T. ports per channel for relocating analogue I/O around studio using passive or active C.A.S.T. breakout boxes via standard shielded Cat 5
- 24v, 5a external locking power supply
- External power supply for improved analogue audio performance and heat dissipation.
- Designed and Engineered in the UK
- Each and every 500R8 is extensively tested by a team of dedicated engineers to ensure reliability and consistency.
- 28-in/30-out USB 2.0 audio interface
| All specifications are typical performance unless otherwise noted. All specifications are subject to change at any time. Tested with Audio Precision APx555 at 192 kHz internal sample rate and internal clock. HF response of digital measurements will vary depending on sample rate selected during recording. | |
| 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 |
