Airfield Audio Liminator 2
MPN #Liminator 2
70's style, Class A, dual transformer, stereo compressor
American Jensen transformers for a clean uncolored soundBritish made Sowter transformers for extra rich musical harmonics5 position step rotary switch on Attack, Release and RatioContinuously variable adjustment on Threshold and Output gainAnalog VU meter is switchable for: input and output plus gain reductionAll front panel controls pots and switches are extremely high grade quality
Features
Vintage David Miller design70's Class A electronicsCompletely hand-assembledDistortion-free Opto attenuator compressor systemSwitchable input transformers - 2 modes0 - 20 dB gain reductionMaximum output level of 32 dBuLow THD + noise, less than .02%Link switch (on both models) and a true relay bypass switchSilver soldering on all connectionsCircuit board made with 3 ounce copperTransformer balanced XLR in and out connections+4 / +14 dBu meter level switch (on stereo version only)Switchable 115/230 VAC operation
Specifications
INPUT IMPEDANCE:
15K with Transformer 1, Balanced, Pin 2 hot
1.2K with Transformer 2, Balanced, Pin 2 hot
OUTPUT IMPEDANCE:
75 Balanced, Pin 2 hot
FREQUENCY RESPONSE:
± 0.25dB, 20 Hz to 20 kHz
- 2dB at 10 Hz, -2dB at 68 kHz with Transformer 1
- 2dB at 10 Hz, -2dB at 120 kHz with Transformer 2
NOISE:
less than -80 dB, 20 Hz to 80 kHz, -92 dB typical below operating level
DISTORTION:
less than .02% THD at unity gain, 4dBu input level .1% THD at 24 dBu input level
MAXIMUM OUTPUT:
+ 32 dBu into 600
GAIN REDUCTION RANGE:
0 ~ 20 dB
CROSSTALK:
-89 dB @ 1KHz, +4dBu signal level
ATTACK:
5, 30, 60, 100, 150 milliseconds
RELEASE:
.1, .3, .6, 2, 6 seconds
GAIN REDUCTION ELEMENT:
LD1 forward biased optical resistive module
METER:
dB Gain Reduction
dB Input, dB Output (0VU = + 4dBu or +14dBu)
POWER REQUIREMENTS:
20 watts, 115 / 230 VAC, 50 / 60Hz
FUSE TYPE:
3AG slo-blo, ½ Amp for 115 VAC mains, ¼ Amp for 230 VAC mains
DIMENSIONS:
19" Rackmount 3U Chassis
DEPTH:
8" (200mm)
WEIGHT:
18 pounds (10 kg)
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