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Mini SM57 Transformerless Modded

Mini SM57 Transformerless Modded

£149
Price dropped from £149
Very GoodReverb8d ago

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Austin's Gear Depot

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Details

First Seen
2 November 2026
Last Seen
10 November 2026
Times Seen
17

About this listing

Mini SM57 Transformerless Modded is a used item in very good condition, listed on Reverb. The asking price is £149. It is offered by Austin's Gear Depot through Reverb. It is in our Microphones category. Used Gear Hunter first saw this listing on 2 November 2026 and last saw it on 10 November 2026. It has been seen 17 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.

From the seller

The Mini SM57: the legendary 57 sound, transformerless and re-engineered into a compact, hand-built short body. The Mini 57 is a Shure SM57 with everything that gets in the way stripped away. The output transformer is gone, and so is the long die-cast handle. What remains is a direct, open-sounding dynamic mic that slips into the tightest spots on a kit, between hi-hat and rack tom, where a full-length 57 always fights for space. THE SOUND - More low end: with the transformer out of the signal path, the 57's natural bottom comes through. Snares sound thick and full, toms get real weight, and guitar cabs gain chest. - More smack: transients hit harder and faster. The crack of a snare cuts through the mix without needing heavy EQ or compression to dig it out. - The nasty frequencies are gone: the boxy, honky mids and the gritty, harsh edge that the stock transformer adds are cleaned out. What's left is open, smooth and detailed, and it's still unmistakably a 57. - Cleaner high end, less noise: the transformer's grain and noise leave the signal path with it, so snare top, cymbals and guitar presence come through clear, airy and smooth instead of gritty. - Transformerless: the cartridge is wired straight to XLR pins 2 and 3 (pin 2 hot), the mod engineers seek out for a more open, punchy 57. - The cartridge, pattern and presence peak are the original SM57's, so the voicing you trust is still there, just unfiltered. THE BUILD - Custom short body, designed and hand-built by me through eight development revisions for a precise head thread and a perfectly seated XLR. - The stock SM57 grille head threads on securely. The original XLR insert is retained and locked in with its factory retaining screw. - Matte black finish with a tapered XLR end and a clean, low-profile silhouette. BEST FOR Snare top and bottom, tight drum kits, toms and percussion, guitar cabinets, and any engineer chasing the transformerless 57 sound in a smaller package. GOOD TO KNOW - Output is lower than a stock 57 (commonly about 10 to 12 dB) because the transformer's step-up is removed. That's no issue on snare and close-miked sources; on quiet sources, use a high-gain preamp or an inline booster. - Dynamic mic: no phantom power needed. Keep 48 V off on this channel. Included: the Mini SM57 microphone, as pictured. Please note: this is a custom-modified microphone, not a stock Shure SM57, and it is not made, endorsed or warrantied by Shure. It uses the SM57 cartridge, grille head and XLR insert; "Shure" and "SM57" describe those parts only. The original factory warranty no longer applies.