sold

100% all new build using a new chassis and all new parts. Also called the PAS-M, this Dynakit PAS Tube preamplifier sounds amazing with the warmth, sparkle, imaging and detail that is missing in so many modern designs. This PAS Tube Preamplifier includes four brand new factory fresh JJ Electronics 12AX7 tubes. These are "long plate" preamp tubes and are fantastic sounding. The sale also includes one (NOS)  Sylvania Black Plate 12X4 rectifier tube.

The Features:

• Traditional Dynakit power/filament supply + filter cap + 12X4 tube

• Original Dynaco Circuit - for that original rich and classic sound

• New Genuine Dynakit circuit boards, latest revision with integrated ground planes

• All Carbon Film Resistors from Kiwame, KOA Speer, Yageo and Ohmite

• Upgraded with Vishay, Kemet, Panasonic, Supertech, IC and WIMA audio grade film capacitors

• Modern 6 position rotary selector

• Updated input-output panel with corrosion resistant Gold plated RCA jacks

• 5 high level inputs for CD, Tuner, Tape Deck, etc.

• 1 dedicated low level MM phono input (47K moving magnet)

• Phono ground binding post

• Alps Volume control

• New balance, bass and treble controls of course

• New 120V Dynakit PA-211 transformer, fused AC mains

• 22 gauge stranded wiring, soldered with Kester 63/37 eutectic solder

• Brand new chassis and Brown vented cover from Dynakit

• New Aluminum Dynakit faceplate with new solid aluminum set-screw knobs

• Micalex tube sockets from Belton

• Made for high impedance amplifiers @ 470KΩ - like the ST-70 & ST-35 and others. 

Tubes Included: 

• Four brand new JJ Electronics 12AX7 (Long Plate) Vacuum Tubes

• One (NOS) Sylvania 12X4 Rectifier Tube

Careful consideration is given when choosing components for the preamp that will contribute to, support and reveal the beautiful details and amazing sonic characteristics of vacuum tubes. Even order harmonics are favorable to the western musical scale and are more pleasing to the ear than the harsh and fatiguing odd order harmonics associated with with solid state.  You won't find any bright, shallow or edgy sound here.

This preamp convinced me that modern "box" style capacitors can and do sound great. Even though I'd used them many times before in a different preamp design that had a completely different circuit, it just never really sounded that great like the original Dynaco circuit does. This PAS preamp uses the original Dynaco PAS circuit populated with "box" style radial caps, I'm thoroughly impressed. It sounds stunning. 

• The best tube preamp for driving the Dynaco ST-70, ST-35, MKIV and MKIII or similar high impedance tube amplifiers

• The Dynakit PA-211 power transformer is wound to operate from a standard 120V-125V outlet. (no voltage reducer necessary)

• The balance control, tone controls are quality parts from Bournes & Alpha

• The Volume pot is an Alps (Japan) "Blue Velvet"

• This PAS model uses the new Dynakit filament supply with a multi-section filter capacitor and 12X4 rectifier tube.

• There are no auxiliary AC outlets, this is to minimize excess wiring that can cause electrical interference. The chassis openings are nicely blocked off.

• This is not a rebuild, it's all new, a modernized version of the original PAS.

• Fully tested and burned-in, it's a beautiful sounding preamp. 

Most people have never had the chance to listen to a properly functioning PAS, especially an all new and nicely outfitted one like this. Many opinions have been formed based on listening to a "garage sale" grade unit which was just removed from long term (and usually improper) storage or have tried using a unit that is simply worn out from decades of previous service, not exactly a means for a valuable assessment. Long periods of dormant storage are the #1 enemy of electronics. Also, many of those preamps were assembled with poor soldering and improper wiring. This one is built right and I'm confident in saying it's on par with other tube preamps costing considerably more. 

The aluminum faceplate has updated (modern) nomenclature printed on around the selector knob, it matches the selectors functions and also the rear panel orientation and label. Again, the indicated selector functions match the rear panel labeling and follow the designated order on both the faceplate and the rear panel label. There are no provisions for a filter, loudness or tape monitor switch, those functions are eliminated. The stereo to mono blend switch is also omitted, and the volume control is relocated above the balance knob as shown in the photo.

The rear panel has jacks for 5 line level (high level) inputs and one phono input and there's a phono ground post.

I have paired this PAS with a new Dynaco ST-35 for testing and burn-in, the results were wonderful, as expected. This is what a Dynaco PAS is supposed to sound like. Very pleasing, warm, lush and detailed with the glitter and nuances we love so much. 

This is an all new, brand new build using all new parts and components.

Want to hear what actual owners have to say? Click here to read some of their reviews.

NOTES: 

• Due to limitations of the simplified selector switch and omission of the extra slide switches and relevant wiring, there are no tape loop or tape monitor functions. You will not be able to use this preamp for recording. This preamp is designed for playback only. 

• It is suggested to have only one source at a time playing to reduce the potential for crosstalk. 

• The preamplifier uses high gain circuits, especially notable in the phono section. It is normal to hear hiss and/or noise from the phono stage if volume is applied without a source to the inputs. That is the sound of millions of electrons swirling about in a highly heated environment just waiting to turn some electrical signals into beautiful music.

• There are no auxiliary AC outlets, to minimize electrical interference. The chassis openings are nicely blocked off.

Want something special? I can build it your way, click here to explore this option

PAS Preamp Dimensions:

• 13.5" Wide X 9" Deep X 4.5" Tall

• Height may be slightly higher (+1/2" to +3/4") with larger feet installed

• Unboxed weight is approximately 11 lbs

*These are the maximum measurements taken at the tallest point, widest point and a depth measurement that was taken from the outer edge of the rear mounted RCA jacks to the front edge of the control knobs. Having cables attached will increase the depth requirements.

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