SSLV1.3 - The Ultra-BIB
The group buy is for an updated Low Voltage shunt reg designed by Salas. This is the third generation of the board. The first being the BIB board, the second implemented in the Folded RIAA board. This updated board uses no NOS JFETs making parts to supply and costs easier to predict. The circuit has been updated an initial clinical listening test have been positive, and noted as an improvement to the original BIB design.
Original Thread SSLV1.3 "Ultra-BIB"
http://www.diyaudio.com/forums/power...ml#post5427621
Salas thoughts..
As the beloved SSLV1.1 BiB shunt reg was getting long in the tooth especially for NOS JFETS I had in mind for some time now to design its successor. The goals were: 1. In production parts 2. Much simpler to set up. 3. Better technical and subjective performance.
After many breadboard experiments and two prototype PCB iterations I feel that my goals were finally met. So here comes the UltraBiB
-Uses no NOS parts.
-Can do 5V to 40V output without changing a thing in its configuration.
-Nothing to choose and match. No tolerances in predicting its CCS limit setting.
-Has 45dB more open loop gain and many times less output impedance than 1.1
-Sounds easily better.
-Its an electrically and mechanically drop in replacement for an upgrade.
Some initial qoutes on sound
From Dimdim
"When we swapped it in place of the BiB 1.1 in my Soekris, the improvement was immediately obvious and not subtle. There was a general improvement in clarity and silence, but the biggest improvement (imho) is that the music appeared to have more energy in the lower mid area, where before it was kind of "dry". This was with Salas' very first prototype, built with standard (non-boutique) components. The board that I built with audio grade capacitors in the filter bank and MUSE BP caps in the output sounded even better."
From VGeorge
"The change in sound to better was apparent at first listen. As other have described, better clarity and definition throughout the audio range, but for me it was also apparent up high the frequency where I could hear more power but without any harshness."
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The board will consist of three different reg's on one board. The board is V-Scored and can be broken into three boards, two boards etc.
On each full board there is a two positive regs and one negative rail reg.
Extra mini-kits (partial kits) are available to support building of the board - but leave out C1 Filtering cap and most resistors .
The boards will sell for $25 each, with $8 minimum shipping USA and Canada 10 min International, paypal only. Shipping has increased substaintially for international shipping, so I can only send a limited amount of boards and kits before it becomes a "package" as opposed to a "flat" and the cost typically doubles.
Parts Kit Downloadable
UltraBIB Minikits - Google Sheets
UBIB Positive Minikit $14
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UBIB Negative Minikit $14
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The group buy sign up sheet will be on my signature.
