Mapletree AudioLine 2B HT line Mapletree Audio Line 2B HT line  preamplifier with HT bypassOriginal owner. Excellent sonic and cosmetic condition. Used it in a rotation. Low hours on pre and tubes. The Mapletree Audio Design Line 2B SE Stereo Line Preamplifier Compact chassis layou...500.00

Mapletree Audio Line 2B HT line preamplifier with HT bypass [Expired]


no longer for sale

Original owner. Excellent sonic and cosmetic condition. Used it in a rotation. Low hours on pre and tubes. The Mapletree Audio Design Line 2B 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. 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. UPGRADES INCLUDE: Premium Auricap XO Capacitors Alps Blue Velvet volume control. NOS RCA 12SX7 tubes One Rca 6x5 Rectifier Specifications: Frequency response (100 k50 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 kfor 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
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