Custom Fairchild 670 Stereo Compressor – DRIP V1 Board - Sowter Transformers - 6BA6 T-Bar Tube Conversion is a used item in excellent condition, listed on Reverb. The asking price is £9,444. It is offered by MIX A L'EAU DE MER through Reverb. It is in our Compressors & Dynamics category. Used Gear Hunter first saw this listing on 24 October 2026 and last saw it on 9 November 2026. It has been seen 25 times in our scans. Prices are converted from the seller's currency when we scan the listing, so the amount you pay may differ slightly. The seller sets shipping, and import duty or VAT may apply, so check the final cost and the item's details on Reverb before buying.

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Custom Fairchild 670 Stereo Compressor – DRIP V1 Board - Heavy Mods by Pro Tech, Sowter Transformers, 6BA6 Tube Conversion. Description: Overview For sale is a truly unique, uncompromising recreation of the legendary Fairchild 670 stereo compressor. Built on a heavily modified DRIP Electronics V1 PCB, this unit was assembled, optimized, and calibrated by myself (professional audio technician with industry recognition). It features a premium component selection and extensive circuit corrections that address the inherent flaws of the stock V1 project, making it an incredibly stable, reliable, and spectacular-sounding machine for modern studio workflows. Custom 6BA6 Vari-Mu T-BAR Tube Conversion (+8 Tubes) Finding perfectly matched, stable NOS 6386/6381 tubes is a modern nightmare and financially prohibitive. This unit features a bespoke engineering upgrade: each original 6381 tube has been replaced by a perfectly matched pair of 6BA6 tubes. This adds 8 tubes to the design (+8 tubes total over stock), offering far better matching capabilities, lower noise floor, and an undeniable gain in tone and dynamic response. To support the extra current draw, two dedicated heavy-duty 6.3V power transformers were added specifically to feed the heaters of these 8 additional tubes. Premium Iron & Component Choice Full set of ultra-premium SOWTER Fairchild replica transformers for the ultimate vintage depth, weight, and harmonic saturation. High-grade passive components throughout, selected for longevity and audio transparency. Critical Modifications & Performance Enhancements Corrected Lat/Vert Circuitry: The original DRIP V1 layout suffers from documented schematic and routing errors regarding the Lateral/Vertical switch. The entire matrix circuit has been corrected and fully optimized. It functions flawlessly, offering perfect Mid/Side processing. Mutualized Time Constants (LINK): A custom Link switch has been added to merge the time constants of both channels for rock-solid stereo bus operation. Front Panel DC THRESHOLD: Unlike units with fixed bias or rear-mounted trims, this model brings independent DC Threshold controls directly to the front panel,allowing you to dynamically shape the compression curve and ratio style on the fly. Condition & Logistics Condition: Excellent / Fully Functional. Calibrated and bench-tested. Pictures: High-resolution interior (gut shots) available below, showing pristine wiring, perfect grounding, and neat solder joints. Shipping/Collection: Due to the extreme weight (extra power iron) and fragility of the 20+ tubes, local pickup/testing in France is highly preferred. Secure freight shipping on a mini-pallet via UPS/FedEx with full value insurance can be arranged at the buyer's expense.

Custom Fairchild 670 Stereo Compressor – DRIP V1 Board - Sowter Transformers - 6BA6 T-Bar Tube Conversion

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