Paramount Soft Start Upgrade


This kit is now retired and is no longer available

This mod to the original version of the Paramount 300B/2A3 monoblocks is fairly extensive and brings those amps up to the current v1.1 specification. It removes the existing PC board over the 12AT7 socket, the 12AT7, the nine pin socket and the terminal strips around the 9 pin socket. It will include a new, bigger and slightly more complex PC board with soft start function and the parts to stuff it, heatsinks for the active load power transistors, a new nine pin socket, new standoffs, mounting hardware and t-strips, a new beefier zener string and 5670 tube – all X 2, for the pair of monoblocks.

Do you need it in your Paramounts?
Click specs below to see what it does, to help you decide –

Out of stock

SKU: 031 Category:

Your pre-order will be charged the day the kit is ordered. We do this to allow cash in advance payment to our vendors to keep the price you pay as low as possible. DIY audio is a very focused esoteric market. We are a small staff with a large passion, attempting to offer the broadest range of kits possible to those interested in this exclusive pursuit of ultra high quality audio reproduction, Thus each kit is manufactured and packed to order, and the production and packaging schedule is influenced by demand. Please understand that our shipment can take up to 3 to 6 weeks when demand is high. You may check how shipping is progressing for a kit by looking here.


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We have moved! Check the contact page for more info. Coming soon, the newly updated Reduction 1.1 phono preamp with universal power transformer. Dismiss