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6. Specifications
Inputs
1. USB – async 24/192 max sample-rate
Outputs
1. S/PDIF coax
2. AES/EBU
3. I2S on RJ-45, Empirical Audio standard (3.3V or optional 5V)
Jitter specs (cycle to cycle, standard clock):
S/PDIF coax output - <500psec total P-P jitter
I2S Clock outputs - <250psec total P-P jitter
7. Compatibility
The Off-Ramp 4 is designed to work with all DACs and SS receivers/processors. To operate with
higher sample-rates, the DAC must support 24-bit operation as well as the higher sample-rate.
The I2S output can be converted to 5V optionally for DACs such as Stello or Northstar.
Sample-rates supported: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Included
1. Off-Ramp 4 with 2 standard clocks (except with upgraded clocks)
2. 12VDC AC adapter
3. 5m USB cable
4. CDROM with drivers and other software
Options
1. Hynes voltage regulator on USB module
2. Audiocom Superclock4
3. Second Audiocom Superclock4
4. Audiocom Ultraclock
5. Second Ultraclock
6. Monolith LI battery power supply
7. BNC or NextGen output connector rather than RCA
8. 5 Volt I2S output for Northstar and other DACs
9. Revelation Labs Cryo-Silver Reference I2S cable
10. Locus Design Polestar cable - specify length
11. Locus Design Axis cable – specify length
12. Bitmeister S/PDIF coax digital cable – 1.5m recommended
