| Features:
Based on Legendary Bill Putnam 610 Tube Mic Pre and EQ Used on Countless Classic Recordings
Authentic Teletronix LA-2A-style T4 Opto-Compressor
Complete vintage channel-strip at groundbreaking price within project studio reach
Mic Pre with Gain and Level controls, variable impedance switching, and Instrument DI for recording tone "color"
Mk II Features such as True Bypass, Larger Metering and Improved Signal Output
UA build quality and heritage, audiophile components, hand-assembled in the USA
MK II Improvements:
True Bypass of the Compressor Circuit
Larger and Better Lit Metering
Improved Output Signal Performance
Auto-Sensing Universal Power Supply
Improved stability with feedback-style shelving EQ
Improved consistency with Input Gain values
LED Jewel Light Never Needs Replacing
General:
Mic, Line and Hi-Z Input, Line Output
Dual Impedance Mic and Hi-Z inputs (Mic: 2K Ω, 500 Ω, Hi-Z: 2.2M Ω, 47K Ω)
5 position Stepped Preamp Input Gain, Continuous Preamp Output Level
-15dB Pad Switch (15dB Pad/Off)
Phase reverse (0/180º)
48 volt Phantom Power switch (+48v/Off)
+/- 9 dB stepped High Shelving Filter (4.5, 7, 10 kHz)
+/- 9 dB stepped Low Shelving Filter (70, 100, 200 Hz)
T4 Optical Compressor with Continuous Peak Reduction and Makeup Gain
Compress/Limit/Bypass Modes of Dynamic Operation (3:1 / 8: 1)
Meter Source Selector Switch (Preamp/Gain Reduction/Compressor)
Front Panel Power switch (On/Off)
Custom Altran and Cinemag Transformers
TECHNICAL SPECIFICATIONS
| General
Microphone Input Impedance |
Selectable, 500 Ω or 2k Ω |
| Balanced Line Input Impedance |
20k Ω |
| Hi-Z Input Impedance |
Selectable, 2.2M Ω or 47k Ω |
| Maximum Microphone Input Level |
-8 dBu (2K input Imp. & 15 dB Pad in) |
| Maximum Output Level |
80 Ω |
| Recommended Minimum Load |
600 Ω |
| Frequency Response |
20 Hz to 20 kHz +/- 0.5dB |
| Maximum Gain |
40 dB (Line), +77dB (Mic) |
| Noise Floor |
-72 dBu 20 - 20kHz (Line In, unity Gain) |
| Compressor Ratio |
3:1, soft knee, program dependent |
| Limiter Ratio |
8: 1, soft knee, program dependent |
| Attack Time |
10 ms, program dependent |
| Release Time |
Dual stage: 60 ms for 1st release, then 1 - 15 sec. |
| Tube Complement |
(3) 12AX7, (1) 12AT7, (1) EL84 |
| Power Requirements |
100V / 120V / 240V |
| Power Consumption |
30 Watts |
| Power Connector |
Detachable IEC power cable |
| Dimensions |
19" W x 3.5" H x 12.25" D (two rack spaces) |
| Weight |
12 lbs. |
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