For sale as a package is my
Mapletree Ultra 4A SE preamp and LR-1 Line Router in all black trim. I am the original owner and unit was purchased in 2009.The unit comes with the original power umbilical plus a custom-made Grover Huffman umbilical. The original power cord was a typical off the shelf one and I will include if requested.
Included is the original PS rectifier tube, a Philco 6X5GT and the one I preferred, a Mullard EX35 6x5GT.
Included preamp tubes are: 2 RCA CRC-JAN 12SX7GT's and 2 RCA 12SC7's. I also have a motley collection of rectifier tubes that I had to purchase in order to get the Mullard and will include them if desired as well as a another 2 RCA 12SC7's , 2 RCA 12SX7 GT's, 4 Sylvania 12SC7's, 2 GE 12SN7's and the original rectifier tube.
But wait, there's more!
Also included are Herbie's Tube Dampers for all 4 preamp tubes and the rectifier PS tube and of course, the owner's manual
Because I bought the LR-1 a year after the preamp, Dr. Lloyd had changed the label trim so he sent me matching labels for the Ultra 4A SE so that both items would match. I never applied them so they remain in their box and will be included.
I'm asking $800 for the whole package, shipping from Canada included but add 4% for PayPal.
Some info:
* Low distortion NOS octal tubes (2 x 12SC7, 2 x 12SN7GT switchable for 6SN7GT).
* Hybrid passive/feedback RIAA equalization.
* Low impedance cathode-follower outputs.
* Two line inputs with 20 dB gain.
* Parallel line outputs for bi-amping or driving a headphone amplifier.
* Source selector switch, volume, and individual channel level controls.
* All point-to-point wiring using silver-plated Teflon wire.
* Includes PS 2 power supply.
* High quality components are used throughout: precision metal film resistors, Auricap and Black Gate signal capacitors, and plastic element volume control.
Specifications: Input resistance: phono - 47 kOhms, line - 500 kOhms. Output impedance: less than 500 Ohms. RIAA equalization: within 0.5 dB 20 Hz–20 kHz. Gain: phono - 50 dB at 1 kHz, line - 20 dB. Line input frequency response: 15 Hz–130 kHz -1 dB. Hum and noise: phono - less than 1.5 mV for gain of 40 dB (60 dB below 1.5 V output), line - less than 0.5 mV for 20 dB gain.
