Mount Cyanide 323 Discrete Mic Preamp is a used item in very good condition, listed on Reverb. The asking price is £820. It is offered by Audio Freqs through Reverb. Local pickup is available. It is in our Preamps & Channel Strips 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.

From the seller

Great condition Mount Cyanide 323 preamp. Awesome sounding unit with no functional or cosmetic issues to note. May have minor rack rash, but nothing significant or affecting functionality. Don't have the original packaging, but will pack well when shipping to ensure no issues during transit. Message me with any questions, or for more info/photos Info via Mount Cyanide: The MELCHOR Preamp features an authentic vintage MELCOR Output Transformer from the 1960's. MELCOR is a rare and much sought after preamp and the direct precursor to the API 312. There are many clones of it, but this is not that. F*CK CLONES. The thick clean tone of the Mount Cyanide 323 is bolstered by the warm tone of the legendary MELCOR output. Bang the gain switch and ride back the fader to drive the heck out of 50+ year old magnetics for crazy sonic hysteresis. You want breakbeats you got breakbeats. Sweet 60's distorted screaming vocals is all yours. Put away your KLON or your Big Muff, make your guitar sing like Jimmy Page's Black Dog. Meticulously handmade to order in Los Angeles, the 323 Discrete Mic / Instrument Preamplifier for 500 Series is powered by an original and proprietary 9-transistor Amplifier and boasts 2 CinemagTransformers and the aforementioned MELCOR Output Transformer. Switchable inputs of Microphone or Hi-Z instrument (balanced or unbalanced). Only the finest components are utilized in this high end piece. Vintage style metal can transistors are used for the audio signal while modern surface mount semiconductors handle the electrical supply signal (current sources). 2nd GAIN STAGE: Switchable HIGH PASS FILTER. The 80 Hz High Pass Filter is great for getting rid of rumble and an indispensible tool. This unique circuit also adds an extra layer of delicious discrete transistor amplification. No IC's (!) Features: Discrete, Original Design MELCOR Output Transformer Cinemag Input Transformers (2) Hi-Z D.I. Input (Guitar, Bass, Synth, Drum Machine) 10 LED Output Meter 20dB Pad Polarity Reversal 48V Phantom Power High Pass Filter Custom Black Front Panel

Mount Cyanide 323 Discrete Mic Preamp

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