Prism Sound Lyra-2 2 x 4 Small Format Audio Interface

Prism Sound Lyra-2 2 x 4 Small Format Audio Interface Lyra represents the pinnacle of compact audio interfaces. Packing Prism Sounds trusted, uncompromising AD/DA conversion into a compact chassis perfect for use in the studio or on the road. Based on the Orpheus’ audio path and clock circuitry, Lyra is ideal for those who don’t require a large I/O count, but do demand the highest quality and most transparent AD/DA available. RENOWNED AD/DA CONVERSION Lyra cuts no corners in its design and boasts the same trusted Prism Sound convertors used on countless hit records. It’s ultra-transparent characteristic means what you put into the Lyra is exactly what you get out of it. PRISTINE PRE-AMPLIFICATION Featuring two class-A microphone preamps, Lyra 2 guarantees superbly clean, detailed recordings that capture a performance the way it was intended. SOFT-CLIP LIMITING (OVERKILLER) Lyra's analogue input channels include a switchable Prism Sound 'Overkiller' circuit. This soft-clip limiter gently absorbs transients and allows signal levels to be pushed to their limits without risk. QUALITY SUPPORT Prism Sound's reputation for audio excellence has been matched only by its top quality after-sales support and technical advice. The longevity of a Prism Sound product is a testament to the dedicated team behind it. Technical Specifications 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) 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 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 (75 OHM) USB port 1 x USB type B receptacle Mains power 3-pin 6A IEC inlet SOFTWARE SUPPORT Mac OS Support OS X 10.5 or later on Intel and Apple M1 silicon Windows OS Support Windows Vista, 7, 8 or later (32 or 64 bit) Mac audio driver Core Audio device Windows audio driver ASIO and WDM 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 ANALOG LINE INPUTS Configuration Electronically balanced, with fully-balanced analogue signal path Input Sensitivity Switchable ‘+4dBu’ (0dBFS = +18dBu) or ‘-10dBV’ (0dBFS = +6dBu) Input Impedance 14.5k OHM 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 5.5k OHM 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 (0 OHM source); -126.3dBu (150 OHM source) +40dB gain: -130.9dBu (0 OHM source); -127.6dBu (150 OHM source) +50dB gain: -131.2dBu (0 OHM source); -127.7dBu (150 OHM source) +60dB gain: -131.4dBu (0 OHM source); -127.8dBu (150 OHM 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 1M OHM ANALOG OUTPUTS Configuration Electronically balanced, with fully-balanced analogue signal path Output amplitude Switchable ‘+4dBu’ (0dBFS = +18dBu) or ‘-10dBV (0dBFS = +6dBu) Output impedance 100 OHM balanced, 50 OHM 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: Lyra 2 S/PDIF (RCA or TOSLINK), ADAT, ADAT S/MUX (TOSLINK), AES3 (XLR via supplied adapter cable) Sample rates supported 44.1, 48, 88.2, 96, 176.4 and 192kHz Sample rates supported: ADAT (Lyra 2 only) ADAT (8 channel): 44k1, 48k ADAT SMUX (4 channel): 88k2, 96k Channel Status Ignored Word-length 24 bit AES3 Operation (Lyra 2) Via S/PDIF RCA, using XLR-RCA adapter (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), AES3 (RCA) Sample rates: S/PDIF/AES3 44.1, 48, 88.2, 96, 176.4 and 192kHz Sample rates: ADAT (Lyra 2 only) ADAT (8 channel): 44k1, 48k; ADAT S/MUX (4 channel): 88k2, 96k 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 (AES/EBU) operation (Lyra 2 only) via S/PDIF RCA, using RCA-XLR adaptor (supplied) and AES3 mode (2V p-p, 110 OHM and AES3 channel status) Sample-rate converter (SRC) (Lyra 2 only) 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) SAMPLE-RATE CONVERTER (SRC) THD+N <-137dB (0.000014%, -0.1dBFS) Dynamic range >138dB (0.000013%, -60dBFS) SYNCHRONIZATION System sample rates 44.1 / 48 / 88.2 / 96 / 176.4 / 192kHz Master local, Wordclock (Lyra 2 only), DI (S/PDIF input) or ADAT (Lyra 2 only) Local clock accuracy +/-50ppm Jitter rejection >60dB / decade above 100Hz Internal mixer delay (total analogue in to out) fs = 44.1kHz: 0.57ms; 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 2/3 width, 1U 19inch rack mountable (Rack ears available as an option) Dimensions Table top (inc. feet): W: 285mm D: 242mm H: 50mm Rack-mount (inc. optional ears): W: 483mm D: 242mm H: 44.5mm Power 90-250VAC, 50-60Hz internal power supply IEC 6A connector Power consumption 15W Fuse rating 0.5A(T), 20mm, glass Weight 2.1kg Operation ambient conditions 0 to 35°C, 85% maximum relative humidity Supplied accessories CD with software and manuals x 1 IEC mains lead x 1 USB Lead type A to B x 1 XLR-F to RCA-M adaptor (S/PDIF/AES3) (Lyra 2 only) x 1 XLR-M to RCA-M adaptor (S/PDIF/AES3) (Lyra 2 only) x 1