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Prism Sound
The Prism Sound Atlas is a USB multi-channel interface aimed at multi-tracking applications featuring a similar feature set to Titan (including the MDIO expansion slot for optional Pro Tools HDX, AES and potentially other digital cards), Atlas will be perfect in the project and multi-track studio for recording as well as for mixing, stereo and stem mastering. The Lyra, Titan and Atlas models feature a 20dB pad on each mic channel to accommodate high sound pressure level (SPL) applications such as drums or close micd guitars or brass.
Our low noise, low distortion, extremely neutral mic pre design has gained a cult popularity amongst existing Prism Sound users and we are pleased to be able to offer a single box 8 channel solution for producers, artists and engineers demanding high-quality front-end with the added benefits of Prism Sound A/D and D/A conversion.
Atlas mic preamps:
- Digitally controlled gain, fully balanced analogue signal path
- 55dB of gain in 1dB steps
- Incredibly transparent:
- 0.00016% THD (+10dB gain: -116db @ -0.1dBFS)
- 0.00040% THD+N (+10dB gain: -108dB @ -0.1dBFS)
- ±0.05 gain accuracy
- Switchable phantom power, 20dB pad, Overkiller soft limiter, phase, high-pass and RIAA filter on all mic inputs
- Mid and Side encoder on all mic input pairs
- Line input functionality
Atlas in brief:
- 8x analogue I/O (switchable mic/line/instrument modes)
- 8x high-grade mic pres
- 2x high impedance, instrument inputs
- MDIO slot for optional digital interfaces (initially Pro Tools HDX and AES)
- Optical I/O (with ADAT, ADAT S/MUX or TOSLINK functionality)
- Stereo digital I/O (S/PDIF or AES)
- MIDI I/O
- Wordclock I/O
- 2x Headphone outputs (sharing a single stereo bus)
- Ethernet port (for future potential AVB and networking integration)
- USB 2.0 host
- 192kHz, 24bit
- Latest award-winning Prism Sound CleverClox clocking technology
- Mac OS X and Windows compatible
REAR PANEL |
Mic / Line inputs | 8 x combo connectors with XLR sockets for mic input and 6.3mm TRS jack sockets for line input (balanced or unbalanced) |
Line outputs | 8 x 6.3mm TRS jack sockets (balanced or unbalanced) |
Digital inputs | 1 x RCA |
Digital output | 1 x RCA |
MIDI I/O | 2 x 5 Pin DIN sockets (in and out) |
Wordclock | 2 x BNC sockets, output and input (75R) |
USB port | 1 x USB 2 port |
Ethernet port | For future expansion / AVB |
MDIO Expansion Slot | For alternative digital multi-channel I/O |
Mains power | 3-pin 6A IEC inlet |
SOFTWARE SUPPORT |
Mac OS Support | OS X 10.4 or later, Intel platform |
Windows OS Support | Windows Vista, 7 or 8, 32 or 64 bit |
Mac audio driver | Core Audio device |
Windows audio driver | ASIO device |
Control Panel applet | Graphical user interface for control of single or multiple Atlas units under Mac OS X or Windows. |
ANALOGUE LINE INPUTS |
Configuration | Electronically balanced, with fully-balanced analogue signal path |
Input Sensitivity | Switchable '+4dBu' (0dBFS = +18dBu) or '-10dBV' (0dBFS = +6dBu) |
Input Impedance | 14.5kΩ |
Unbalanced Mode | Automatic |
Total harmonic distortion | -117dB (0.00014%, -0.1dBFS) |
THD+N | -111dB (0.00028%, -0.1dBFS) |
Dynamic Range | 116dB (-60dBFS) |
Gain Accuracy | ±0.05dB |
LF roll-off | -0.05dB at 8Hz; -3dB at <1Hz |
HF roll-off | fs = 44.1kHz: -0.05dB at 21.1kHz; -3dB at 22.0kHz |
CMRR | 20Hz..20kHz: >70dB |
Inter-channel cross-talk | 1kHz: <140dB; 20Hz..20kHz: <-120dB |
Inter-channel phase | 10Hz..5kHz: ±0.25°, |
Overkiller | Progessive limiter, auto-aligning, selectable per channel |
Impact Filter | High-pass filter, -3dB at 80Hz, 40dB/decade (selectable for channels 1-4; whether in line, mic or instrument mode) |
RIAA de-emphasis filter | Response accuracy: |
M-S matrix | Allows direct connection of mid-side mics, or non-matrix mic-preamps (selectable for channels 1-4; whether in line or mic mode) |
MICROPHONE PREAMPLIFIERS |
Configuration | Electronically balanced, with fully balanced analogue signal path |
Gain | 10dB to 65dB in 1dB steps (0dBFS = -56dBu to -1dBu) |
Gain accuracy | ±0.05dB |
Input impedance | 5.5kΩ |
THD | +10dB gain: -116dB at -0.1dBFS (0.00016%) |
THD+N | +10dB gain: -108dB at -0.1dBFS (0.00040%) |
Equivalent input noise (EIN) | +30dB gain: -128.5dBu (0Ω source); -126.3dBu (150Ω source) |
LF roll-off | -0.05dB at 20Hz, -3dB at 5Hz |
HF roll-off | As per analogue line input data (dependent on fs) |
CMRR | 50Hz/60Hz: >110dB at all gains |
Phantom power | +48V, switchable per channel |
Pad | -20dB, switchable per channel |
INSTRUMENT PREAMPLIFIERS |
Configuration | Unbalanced, high impedance buffer |
Gain | 10dB to 65dB in 1dB steps, 18dB pad (0dBFS = -38dBu to 17dBu) |
Gain accuracy | ±0.05dB |
Input impedance | 1MΩ |
- No-compromise Prism Sound audio quality
- Class compliant (UAC2) USB interface
- ASIO and WDM drivers for Windows (32 and 64bit)
- Native CORE AUDIO on Mac OS X
- UAC2 operation on Linux (no control panel support)
- Two Prism Sound premium-quality AD channels
- One high-end integrated microphone preamps (typ. -130dBu EIN)
- Microphone input has switchable phantom power and 20dB pad
- One high-impedance front panel instrument input
- Prism Sound "Overkillers" to gracefully control transient overloads
- Two Prism Sound premium-quality DA channels, plus independent stereo headphone DA
- Outputs selectable between workstation bus or Lyra mixer
- New high-drive headphone output with front-panel volume control
| LYRA 1 FRONT PANEL |
| Instrument Input | 1 x 6.3mm mono jack socket, auto-detect with software override. |
| Headphone Output | 1 x 6.3mm stereo TRS Jack, with illuminated volume control |
| Master volume | Assignable encoder / push switch with halo indication |
| Standby button | with standby indicator (also flashes when unit is in "identify" mode) |
| Indication: | |
| Level Meters | 4 x multi-segment, multi-colour bargraphs with overload indication, 2 for analogue, 2 for digital, assignable to inputs or outputs |
| Input selection | Indicate mode of analogue inputs 1 & 2 as Mic / line / inst & plus phantom power indicator for mic mode |
| Overkiller | For both analogue inputs, lit when Overkiller limiters are acting |
| Digital Input | indicators for digital input unlocked and SRC (sample-rate converter) selected |
| LYRA 2 FRONT PANEL |
| Instrument Inputs | 2 x 6.3mm mono jack sockets, auto-select to analogue inputs 1 & 2 when plugged, software override |
| Headphone Output | 1 x 6.3mm stereo TRS Jack with illuminated volume control |
| Master volume | Assignable encoder / push switch with halo indication |
| Standby button | with standby indicator (also flashes when unit is in 'identify' mode) |
| Indication: | |
| Level Meters | 4 x multi-segment, multi-colour bargraphs with overload indication, 2 for analogue, 2 for digital, assignable to inputs or outputs, analogue outputs switchable 1/2 or 3/4. |
| Input selection | Indicate mode of analogue inputs as Mic / line / inst & plus phantom power indicator for mic mode |
| Overkiller | For analogue inputs, lit when Overkiller limiters are acting |
| Digital Input | indicators for digital input unlocked and SRC (sample-rate converter) selected |
| Digital Output | indicator for SRC (sample-rate converter) selected |
| Sync | Master indicator, lit when interface is in local sync |
| LYRA 1 REAR PANEL |
| Mic Input | 1 x XLR socket |
| Line input | 2 x 6.3mm TRS jack sockets (balanced or unbalanced) |
| Line outputs | 2 x 6.3mm TRS jack sockets (balanced or unbalanced) |
| Digital inputs | 1 x TOSLINK for S/PDIF input |
| Digital output | 1 x TOSLINK for S/PDIF output |
| USB port | 1 x USB type B receptacle |
| Mains power | 3-pin 6A IEC inlet |
| LYRA 2 REAR PANEL |
| Mic inputs | 2 x XLR sockets |
| Line inputs | 2 x 6.3mm TRS jack sockets (balanced or unbalanced) |
| Line outputs 1-4 | 4 x 6.3mm TRS jack sockets (balanced or unbalanced) |
| Digital inputs | 1 x RCA 1 x TOSLINK for S/PDIF or ADAT Optical input; (RCA can operate as AES3 input using XLR-RCA adapter supplied) |
| Digital output | 1 x RCA 1 x TOSLINK for S/PDIF or ADAT Optical output; (RCA can operate as AES3 output using XLR-RCA adapter supplied) |
| Wordclock | 2 x BNC sockets, output and input (75Ω) |
| USB port | 1 x USB type B receptacle |
| Network port | 1 x RJ45 AVB ethernet port |
| Mains power | 3-pin 6A IEC inlet |
| SOFTWARE SUPPORT |
| Mac OS Support | OS X 10.5 or later Intel platform |
| Windows OS Support | Windows Vista, 7, 8 or later (32 or 64 bit) |
| Mac audio driver | Core Audio device |
| Windows audio driver | ASIO device, WDM coming soon |
| Linux audio driver | Lyra is a UAC2 class compliant device - no driver needed on recent distros |
| Control Panel applet | Graphical user interface for control of Lyra unit under Mac OS X or Windows |
| ANALOGUE LINE INPUTS |
| Configuration | Electronically balanced, with fully-balanced analogue signal path |
| Input Sensitivity | Switchable '+4dBu' (0dBFS = +18dBu) or '-10dBV' (0dBFS = +6dBu) |
| Input Impedance | 14.5kΩ |
| Unbalanced Mode | Automatic |
| Total harmonic distortion | -117dB (0.00014%, -0.1dBFS) |
| THD+N | -111dB (0.00028%, -0.1dBFS) |
| Dynamic Range | 116dB (-60dBFS) |
| Gain Accuracy | ±0.05dB |
| LF roll-off | -0.05dB at 8Hz; -3dB at <1Hz |
| HF roll-off | fs = 44.1kHz: -0.05dB at 21.1kHz; -3dB at 22.0kHz fs = 48kHz: -0.05dB at 23.0kHz; -3dB at 23.9kHz fs = 96kHz: -0.05dB at 32.0kHz; -3dB at 47.9kHz fs = 192kHz: -0.05dB at 32.0kHz; -3dB at 78kHz |
| CMRR | 20Hz..20kHz: >70dB |
| Inter-channel cross-talk | 1kHz: <140dB; 20Hz..20kHz: <-120dB |
| Inter-channel phase | 10Hz..5kHz: ±0.25°, 5kHz..20kHz: ±1.0°, 20kHz..50kHz: ±2.0°, |
| Overkiller | Progessive limiter, auto-aligning, selectable per channel |
| Impact Filter | High-pass filter, -3dB at 80Hz, 40dB/decade (selectable for channels 1-2; whether in line, mic or instrument mode) |
| RIAA de-emphasis filter (Lyra 2 only) | Response accuracy: ±0.22dB at fs=44.1kHz; ±0.14dB at fs=48kHz; ±0.015dB at other sample rates |
| M-S matrix (Lyra 2 only) | Allows direct connection of mid-side mics, or non-matrix mic-preamps |
| MICROPHONE PREAMPLIFIERS |
| Configuration | Electronically balanced, with fully balanced analogue signal path |
| Gain | 10dB to 65dB in 1dB steps (0dBFS = -56dBu to -1dBu) plus switchable -20dB pad |
| Gain accuracy | ±0.05dB |
| Input impedance | 5.5kΩ |
| THD | +10dB gain: -116dB at -0.1dBFS (0.00016%) +40dB gain: -110dB at -0.1dBFS (0.00032%) |
| THD+N | +10dB gain: -108dB at -0.1dBFS (0.00040%) |
| Equivalent input noise (EIN) | +30dB gain: -128.5dBu (0Ω source); -126.3dBu (150Ω source) +40dB gain: -130.9dBu (0Ω source); -127.6dBu (150Ω source) +50dB gain: -131.2dBu (0Ω source); -127.7dBu (150Ω source) +60dB gain: -131.4dBu (0Ω source); -127.8dBu (150Ω source) |
| LF roll-off | -0.05dB at 20Hz, -3dB at 5Hz |
| HF roll-off | As per analogue line input data (dependent on fs) |
| CMRR | 50Hz/60Hz: >110dB at all gains 1kHz: >100dB at all gains 20kHz: >90dB at all gains |
| Phantom power | +48V, switchable per channel |
| Pad | -20dB, switchable per channel |
| INSTRUMENT PREAMPLIFIERS |
| Configuration | Unbalanced, high impedance buffer |
| Gain | 10dB to 65dB in 1dB steps, 18dB pad (0dBFS = -38dBu to 17dBu) |
| Gain accuracy | ±0.05dB |
| Input impedance | 1MΩ |
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