Mapletree Audio Design Line 2A SE Stereo Line Preamplifier
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Condition | |
Payment methods | |
Ships from | Baltimore, MD, 21214 |
Ships to | United States |
Package dimensions | 16.0" × 12.0" × 12.0" (10.0 lbs.) |
Shipping carrier | unspecified |
Shipping cost | Specified after purchase |
Original accessories | Manual |
Average | Research Pricing |
The Mapletree Audio Design Line 2A SE Stereo Line Preamplifier Compact chassis layout for use with separate tube rectified power supply for low noise.
A very nice 6SN7 line level preamp with NOS tubes. Very quite, not overly tubey sound.
Exclusive use of NOS 12SN7GT octal tubes, known for low distortion and musicality.
Heater voltage switch for use of 6SN7GT tubes if desired.
Low output impedance (less than 500 Ohms).
Parallel output jacks. (Two sets)
Three sets of input jacks
Individual channel level controls with up to 10 dB attenuation.
Premium M Cap ZN polypropylene film signal coupling capacitors.
Alps Blue Velvet volume control.
Specifications:
Frequency response (100 k50 pF load, 1 V output): 12 Hz–20 kHz –0.5 dB
Maximum input voltage: 5 V (rms)
Voltage Gain (100 k load, 1 kHz): 10 dB (standard configuration)
Level control range: 0 dB to –10 dB
Output impedance (1 kHz): 450
Input impedance (1 kHz): 100 kfor 10 dB gain configuration; 20K for 20 dB gain
Hum and noise at output (max volume): less than 200 V rms
Phase: Inverting
Power consumption: 20 W
Tubes Included:
Three 6SN7 GT made in China
Two 6SN7 GTB RCA
Two 6SN7 GT JAN VT 231 (my personal favorite)
Two 12SN7 GTA Sylvania
One 6X5 Rectifier
User Manual with schematics
Standard Power Cord included
Carefully packed:
Each chassis in separate box, tubes in separate box placed in an oversized box with plenty of padding. Ready to ship with in 24 hrs of payment receipt via FEDEX ground. Free Shipping to lower 48 with full price offered
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