Preamp Module for the Aurora(n)
For the first time ever, we have designed and built a microphone preamp to compliment the capabilities of the Aurora(n). The LM-PRE4 not only adds the flexibility of four channels of mic/line/Hi-Z inputs, but also adds an additional four channels of A/D conversion. The LM-PRE4 is sonically matched for the Aurora(n) with all the transparency, detail and flexibility you’ve come to expect from Lynx. The convenience and utility of this new high performance preamp not only compliments the interface, but when combined with the Aurora(n)’s built in microSD recorder the LM-PRE4 transforms the Aurora(n) into a stand-alone mobile recording device. With a total of 16 ins (8 preamp ins plus 8 line ins) and 8 line outs, the Aurora(n) PRE 1608 comes with two LM-PRE4’s in either Thunderbolt or USB. The LM-PRE4 and the Aurora(n) PRE 1608 are available now.
Key features
- Four-channel microphone/line/HI-Z input module for Aurora(n)
- On-board Aurora(n) A/D conversion directly coupled to preamp out for four additional input channels
- Transformerless, transparent design
- Up to 68.6dB gain in 1dB increments
- Fully-differential, current-feedback preamplifier architecture
- Low noise (-129dBu EIN) microphone input
- Noise and distortion optimized at all gain settings
- Independent 48V phantom power, phase, high-pass filter, and pad for each channel
- Dedicated line level signal path provides performance identical to other (AIO8E) input channels
- Gold contact relays for distortion-free signal routing
- Seamless integration with the Aurora(n) mixing and routing engine
Technical specification
Line Input
THD+N (1kHz, -1dBFS, 20kHz filter)
- -113dB (0.00022%)
Dynamic Range (A-weighted, -60dBFS method)
- 119dB
Frequency Response (Deviation over 20-20kHz band, -1dBFS)
- ±0.010dB max.
Crosstalk (Adjacent channel, -1dBFS, 1kHz)
- -138dB max.
Common Mode Rejection (-1dBFS, 60Hz and 1kHz)
- 75dB min
Full-scale Input Level for A/D
- 20dBu
Input impedance
- 200k Ohm balanaced, 100k Ohm unbalanced
Gain Settings
- Fixed
Connector
- Female XLR on Neutrik jack
Microphone Input
THD+N (1kHz, -1dBFS, 20kHz filter)
- -111dB (0.00028%) @ 21.6dB gain
EIN (A-weighted)
- -129dBu @ 61.6dB gain
Dynamic Range (A-weighted, -60dBFS method)
- 116dB @ 21.6dB gain
Frequency Response (Deviation over 20-20kHz band, -1dBFS)
- +0.01 / -0.08dB max. @ all gain settings
Crosstalk (Adjacent channel, -1dBFS, 1kHz)
- -127dB max. @ 41.6dB gain
Common Mode Rejection (-1dBFS, 60Hz and 1kHz)
- 75dB min. @61.6dB gain
Full-scale Input Level for A/D
- 28.7dBu @5.6dB gain with pad
Input impedance
- 2.1k Ohm
Gain Settings
- 5.6dB/13.6dB to 68.6dB in 1dB steps
Pad attenuation
- 13.6dB
High-pass Filter
- 80Hz, 12 dB / octave
Connector
- Female XLR on Neutrik jack
Hi-Z Input
THD+N (1kHz, -1dBFS, 20kHz filter)
- -109dB (0.00035%) @ 21.6dB gain
EIN (A-weighted)
- -115dBu @ 21.6dB gain
Dynamic Range (A-weighted, -60dBFS method)
- 114dB @ 21.6dB gain
Frequency Response (Deviation over 20-20kHz band, -1dBFS)
- +0.01 / -0.05dB max. @ all gain settings
Crosstalk (Adjacent channel, -1dBFS, 1kHz)
- -132dB @ 21.6dB gain
Full-scale Input Level for A/D
- 14.9dBu @5.6dB gain
Input impedance
- 1M Ohm unbal. (TS), 2M Ohm bal. (TRS)
Gain Settings
- 5.6dB/13.6dB to 68.6dB in 1dB steps
Connector
- TRS on Neutrik jack