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1. #The tube preamp cookbook allen wright plus#
2. #The tube preamp cookbook allen wright series#
3. #The tube preamp cookbook allen wright torrent#

Printed circuit board has most components mounted on the TRACE side.

Extra large VA capacity power transformer, providing superior voltage regulation, due to inherent inductive capability. That’s why this line stage doesn’t change the sound, as the usual conventional designs do. This is a biggie that provides a huge improvement to the potentially troublesome cathode follower, and renders it sonically benign, for the first time. Line stage EXTRA dual triode TUBE serves as both current source for bias, and also voltage regulator for the cathode follower. This is the most accurate, stable and sonically benign method, that requires more complexity and a higher parts count. Critical stages are biased by constant current source. But in the svp1, the shunt regulator transistor just swallows the reflected current before it bounces even once.

#The tube preamp cookbook allen wright series#

If a typical series regulator is used, this reflected current keeps bouncing around, potentially causing sonic nasties. Under dynamic (musical) conditions, any preamp reflects current to the power supply. Unlike the usual series regulators, shunt regulators ABSORB CURRENT reflected from the load (preamp tubes). Top quality components used throughout Superior high speed analog IC-controlled SHUNT regulation of B+ supply voltage. The tube upper half dominates, sonically. Transistor sonic signature is not heard in this design, with the FET only as the lower half of a cascode. This provides moving coil gain, without the need for a sound-degrading step up transformer.

#The tube preamp cookbook allen wright plus#

For the technically minded, the 'silver bullets' we refer to are, in part, as follows: Six 6922 dual triode vacuum tubes plus one FET per channel in the phono stage, used as the lower half of a cascode (the upper half ½-6922). Phone me about this, Warren, 1-80 (Best time after 1:30PM until ridiculously late). We usually have an svp1 available to demonstrate in the San Francisco Bay Area, and nearby communities. View the svp1 user manual, including color photos by clicking below. Why does it sound better than other preamps? Allen Wright has applied all of his 'silver bullets' to this design, and I am pleased to say that the beautiful music it reproduces has convinced me they are all percolatin’ together in the intended manner. More The Tube Preamp Cookbook Allen Wright images.

#The tube preamp cookbook allen wright torrent#

Both svp1’s that I’ve heard eclipse even my extravagant homebrew Vacuum State RTP4 balanced phono stage.ĭownload Tomtom Per Windows Ce 5.0 Torrent more. Never have I had more realistic and involving musical experiences from recorded music. My primary interest is natural, super realistic music, voice and sound reproduction. But to me, the convenience and flexibility are only ancillary benefits. This is not quite as good as the main output, but compared to most, it is stellar. A superlative tape-out signal is provided by a DIRECT COUPLED FET buffer.- No coupling capacitor in the path to the tape. Extra phono sockets on the rear panel allow easy changes to cartridge loading, simply by changing plugs. These allow the phono stage gain to be matched to virtually any cartridge 'in the known world.' Even the line stage gain can be adjusted, simply by changing the value a one resistor per channel (This work is normally performed by a skilled technician.). A glance at the rear panel reveals 18 sturdy I/O connectors that help achieve outstanding flexibility of operation and ease of optimum setup.įour easily accessible, removable jumpers may be safely accessed from a cutout in the bottom panel. Warren Gregoire’s thoughts about his favorite new preamp: Although the svp1 has the appearance of elegant simplicity, with only an input selector and volume knob on the front panel, it actually has more (hidden) useful controls and facilities than many competitive products. Vacuum State GmbH svp1 Preamplifier - Now in Stock for Immediate Delivery, $6300 - This remarkable unit combines state-of-the-art phono reproduction with the best line stage south of $20,000. Manufacturer of Ikonoklast 2DX4 speakers. HiFi/Stereo - Phono Preamp Warren Gregoire and Associates LLC FOR THE DISCRIMINATING AUDIO ENTHUSIAST North America's only, full-line, stocking dealer of London Decca phono cartridges, London Reference, London Decca Jubilee, London Decca Super Gold, London Decca Gold and London Decca Maroon.