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Prism's Impeccable converter and clocking tech in a beefy interface with convenient USB2.0 connectivity and options to expand
$4,159.00
Atlas is a USB multi-track audio interface for personal recording and sound production, for professional musicians, songwriters, engineers and producers as well as recording studios, post production facilities and scoring stages. Atlas is ideal for music and sound recording, mixing, multitracking, overdubbing, stem-based mastering, analogue summing and critical listening applications.
Atlas provides Prism Sound's renowned performance, sound quality and state-of-the-art clock technology in a dedicated unit compatible with both Windows (Vista and higher, 32 and 64 bit) as well as Mac OS X 10.5 and later (Intel). Once configured with a computer, Atlas can also operate stand-alone using its ADAT, S/PDIF or AES3 I/O.
Verifile is a radical new proprietary technology exclusive to Prism Sound which allows computer audio streams and recorded files to be quickly checked for a wide range of clicks, errors and dropouts, without any compromise in the audio content or any additional metadata.
No-compromise, full Prism Sound audio quality
Atlas makes no compromises on audio quality. It is the result of years of research and development into digital audio conversion and extensive dialogue with Prism Sound's customers.
Prism Sound has taken on board the increasing importance of native processing power for professional users and the fact that software products for standard PC and Mac platforms have been greatly enhanced in recent years. Atlas uses a USB2 interface. This is a UAC2 (USB Audio Class 2) interface supported natively in Mac, iPad, Linux and Android, and in Windows via a driver.
Atlas & Titan support Prism Sound’s MDIO expansion cards, which provide alternative “host” connections. The “host” is usually a computer and the Atlas or Titan interface provides a means of connection between the host and the external analogue and digital audio I/O ports.
Without the MDIO expansion card fitted, the host connection would always be the default USB connection.
The MDIO expansion slot provides an alternative host connection. It does not necessarily disable the USB port, but in the case of the Pro Tools interface MDIO-PTHDX, the USB port is switched off when the Pro Tools interface is to be used.
Currently, only the MDIO-PTHDX expansion card is available. Others may be produced later.
Our customers told us that many professional users wanted a highly integrated solution with instrument and microphone inputs, and line outputs that could be used for stereo or multi-channel monitoring and/or foldback to performers. Atlas offers eight analogue recording channels, eight monitoring outputs, stereo digital input and output on a phono connector plus concurrent optical digital I/O ports that can interface to S/PDIF or ADAT data formats, giving Atlas a maximum capability of 18 concurrent input and output channels plus stereo headphones.
Instrument Inputs | 2 x 6.3mm mono jack sockets, auto-select to analogue inputs 1 & 2 when plugged |
Headphone Outputs | 2 x 6.3mm stereo TRS Jacks, each 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 | 10 x multi-segment bargraphs with overload indication, 8 for analogue, 2 for digital, assignable to inputs or outputs |
Input selection | Indicate mode of analogue inputs 1-8 as Mic / line / inst with phantom power indication for mic mode |
Overkiller | For every analogue input, 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 providing system sync |
- | 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 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) |
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 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 1-4; whether in line, mic or instrument mode) |
RIAA de-emphasis filter | Response accuracy: ±0.22dB at fs=44.1kHz; ±0.14dB at fs=48kHz; ±0.015dB at other sample rates |
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%) +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 |
- | ANALOGUE OUTPUTS |
Configuration | Electronically balanced, with fully-balanced analogue signal path |
Output amplitude | Switchable '+4dBu' (0dBFS = +18dBu) or '-10dBV (0dBFS = +6dBu) |
Output impedance | 100Ω balanced, 50Ω unbalanced |
Unbalanced mode | Automatic, with bootstrapping level compensation |
Total harmonic distortion | -107dB (0.00045%, -1dBFS) |
THD+N | -106dB (0.00050%, -0.1dBFS) |
Dynamic range | 115dB (-60dBFS) |
Gain accuracy | ±0.05dB |
LF roll-off | -0.05dB at 8Hz, -3dB at <1Hz |
HF roll-off | fs = 44.1kHz: -0.05dB at 21.4kHz; -3dB at 22.0kHz fs = 48kHz: -0.05dB at 23.2kHz; -3dB at 23.9kHz fs = 96kHz: -0.05dB at 32.0kHz; -3dB at 47.8kHz fs = 192kHz: -0.05dB at 32.0kHz; -3dB at 76kHz |
Output balance | >50dB |
Inter-channel cross-talk | 1kHz: <135dB; 20Hz..20kHz: <-120dB |
Inter-channel phase | 10Hz..5kHz: ±0.4°, 5kHz..20kHz: ±0.25°, 20kHz..50kHz: ±0.5°, |
- | DIGITAL INPUTS |
Formats supported | S/PDIF (RCA or TOSLINK), ADAT, ADAT S/MUX (TOSLINK) |
Sample rates supported | S/PDIF (2 channel): 44.1, 48, 88.2, 96, 176.4 and 192kHz ADAT (8 channel) 44.1 and 48kHz ADAT S/MUX (4 channel): 88.2 and 96kHz |
Channel Status | ignored |
Word-length | 24 bit |
AES3 operation | via S/PDIF RCA, using RCA-XLR adaptor (supplied) |
Sample-rate converter (SRC) | Selectable at S/PDIF input; allowing input at any sample rate |
Bit transparency | Maintained (allows recording of Dolby or DTS streams) |
- | DIGITAL OUTPUTS |
Formats supported | S/PDIF (RCA or TOSLINK), ADAT, ADAT S/MUX (TOSLINK) |
Sample rates supported | S/PDIF (2 channel): 44.1, 48, 88.2, 96, 176.4 and 192kHz ADAT (8 channel) 44.1 and 48kHz ADAT S/MUX (4 channel): 88.2 and 96kHz |
Channel Status | Full implementation, Consumer (S/PDIF) or professional (AES3) |
Word-length | 24 bit, or reduction to 16 bits using flat TPDF dither or Prism Sound SNS (Super Noise Shaping - four alternative shapes available) |
AES3 operation | via S/PDIF RCA, using RCA-XLR adaptor (supplied) |
Sample-rate converter (SRC) | Selectable at S/PDIF output; output rate can be referenced to Wordclock, DI or local clock at 44.1, 48, 88.2, 96, 176.4 or 192kHz |
Bit transparency | Maintained in 24 bit mode (allows playback of Dolby or DTS streams to external decoder) |
- | SYNCHRONIZATION |
System sample rates | 44.1 / 48 / 88.2 / 96 / 176.4 / 192kHz |
Sync sources: | |
Master | local, Wordclock, DI (S/PDIF input) or ADAT |
Slave | bus master (another interface or Host computer) |
Local clock accuracy | ±50ppm |
Jitter rejection | >60dB / decade above 100Hz |
Internal mixer delay (total analogue in to out) |
fs = 44.1kHz: 0.56ms; fs = 48kHz: 0.52ms; fs = 88.2kHz: 0.2ms; fs = 96kHz: 0.18ms; fs = 176.4kHz: 0.09ms; fs = 192kHz: 0.08ms; |
- | PHYSICAL |
Form factor | 2u 19inch rack mountable (rubber feet and rack ears supplied) |
Dimensions | Table top (inc feet): W: 440mm D: 290mm H: 95mm Rack-mount (inc ears): W: 483mm D: 290mm H: 88mm (2u) |
Power: | 90-250VAC, 50/60Hz internal power supply IEC 6A connector |
Power consumption | 35W |
Fuse rating | 0.5A(T), 20mm, ceramic |
Weight: | 5kg |
Operation ambient conditions | 0 to 35°C, 85% maximum relative humidity |
- | SUPPLIED ACCESSORIES |
Printed manual | x 1 |
Software CD | x 1 |
IEC mains lead | x 1 |
19" Rackmount ears | x 2 (pair) |
Allen key (for rack ears) | x 1 |
USB lead | x 1 |
XLR-F to RCA-M adaptor (S/PDIF/AES3) |
x 1 |
XLR-M to RCA-M adaptor (S/PDIF/AES3) |
x 1 |