Valley International 400 Channel Strip, Mic Pre, EQ & Compressor, Modified & Recapped, #2 is a used item in very good condition, listed on Reverb. The asking price is £312. It is offered by BN1studio through Reverb. Local pickup is available. It is in our Preamps & Channel Strips category. Used Gear Hunter first saw this listing on 28 September 2026 and last saw it on 10 November 2026. It has been seen 33 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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Channel strip / preamp from Valley International, one of the later incarnations of Allison Research / Valley People. The model 400 channel strip has a mic pre, compressor / gate / de-esser & equaliser in a 1U package. Designed originally as a voice processor for radio work, it fits neatly into the channel strip genre I couldn’t resist the urge to tinker with the 400 and the revamped unit now has: Altered EQ points Low frequency turnover point is now lower ~ 60 Hz Mid centre frequency is lower ~ 700 Hz Hi frequency turnover still ~ 5 kHz Revamped power supply 220 Volt power for UK / EU Recapped throughout Larger value bipolar caps in the audio path The 400 combines a very clean mic preamp with a simple three-band EQ with fixed frequencies and compressor / de-esser / expander / gate. The expander & gate are not as simple as they seem – there’s a description in the owners manual but the simple explanation is that the expander / de-esser & compressor work together when switched to Comp and the gate works alone when switched to Gate The preamp and eq feed the back-panel insert send and a parallel preamp output. The insert return then feeds the compressor VCA and output stage. In use the 400 sounds clean & clear with plenty of gain – too much for line level signals. If you want to use the mic input for line-level signals, and have the benefit of the EQ, I suggest using an inline 20 dB pad. The additional back-panel line level input is post-eq. The gain structure of the 400 is a little complex: at unity gain the compressor is triggering on peaks. Increasing the compressor gain – to get more compression – raises the overall level, requiring the output gain to be lowered to maintain unity gain When pushed the compressor dives deep into Dynamite territory with huge, pumping compression & explosive release available on higher settings. The compressor has Heavy, Normal and De-ess settings and a fixed ratio of 20:1. Release time is program-dependent Condition I have one Model 400 ready now and more to follow. Photos show the first completed unit – the others look similar. IEC power cable supplied on request Tested & working 100%. Manual available on the BN1studio website

Valley International 400 Channel Strip, Mic Pre, EQ & Compressor, Modified & Recapped, #2

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