Metric Halo ULN-R Preamp Kit

Product description

Microfoon voorversterker uitbreidingsboard voor een LIO-8 die reeds beschikt over een 4-kanalen pre-amp board voor de ingangen 1 t/m/ 4.
Met deze kit breidt je het aantal microfooningenagen uit van 4 naar totaal 8.


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The ULN-R mic pre possesses virtually every characteristic that is coveted in a Mic Preamp: exceptionally low noise at all gains, exceptionally high gain, excellent common mode and RFI rejection, incredibly flat frequency response, and ultra-low distortion. It simply increases the level of what you put into it without having to consider the nature of the source: Dynamic Mics, Phantom Powered Mics, Ribbon Mics, turntables, Instrument or line level signals are all handled with equal ease and quality.

Installing the ULN-R option is simple- open the top casing, remove the DB25 block-off plate from the rear panel, install the mic pre(s) and riser card and replace the top casing. If you are not comfortable working with static-sensitive electronics, you can have us do the upgrade for you; when you order your upgrade, we will issue an RMA for you to send your unit to us and our technicians will install the option for you. Turn around time is typically 1 week from date of receipt of the unit.

Specs
Preamp Rails ±15.8 Volts
Phantom Power 48 ± 0.1 Volts
Max Phantom Current Per Mic 10 ma

Mic Pre Input + ADC
Input Impedance 3.3 k?
Dynamic Range (-60 dB, flat 0-22.05 kHz, typ) 115 dB
Dynamic Range (-60 dB, A-weighted, typ) 118 dB
Noise Floor (flat 0-22.05 kHz, typ) 115 dB
Noise Floor (A-weighted, typ) 117.9 dB
Gain Range -22 dB to +91.5 dB
Gain Precision ±0.05 dB
Gain Step 0.5 dB
THD D/A/A/D loop @ -12 dBFS 0.0007 %
THD D/A/A/D loop @ -12 dBFS +12 dB Gain 0.0015 %
THD D/A/A/D loop @ -0 dBFS 0.0023 %
Crosstalk @ 1kHz -110dB
IMD 1k component (19 kHz/20kHz @ +8dBu) -104 dBu
EIN @ 60 dB Gain (150? Source Impedance) -130.50 dBu
EIN @ 60 dB Gain (0? Source Impedance) -133.25 dBu
Analog Send Calibration (ADC = 0 dBFS) +21.5 dBu
Phantom Power (Switchable Per Channel) +48 Volts

Mic Pre + ADC Frequency Response
+0/-0.1dB @ fs = 44100 Hz 8.9 Hz - 20.5 kHz
+0/-1.0dB @ fs = 44100 Hz 2.9 Hz - 21.0 kHz
+0/-0.1dB @ fs = 96000 Hz 8.9 Hz - 43.9 kHz
+0/-1.0dB @ fs = 96000 Hz 2.9 Hz - 45.4 kHz
+0/-0.1dB @ fs = 192000 Hz 8.9 Hz - 42.1 kHz
+0/-1.0dB @ fs = 192000 Hz 2.9 Hz - 64.7 kHz
5° low-end in-channel phase deviation point 20.0 Hz
Interchannel phase 0 Hz - 20 kHz < ±0.05°
Crosstalk from SMPTE Input < -142 dB