1955 Gates M5215 mic preamps racked and powered. All in fine working order running at factory spec. Classic radio broadcast design microphone preamps from 1955. Excellent sound, frequency response, sensitivity and signal to noise characteristics.
XLR or 1/4 TRS 150ohm inputs and 1/4 TRS 600ohm outputs. Transformer balanced inputs and outputs. Phantom power selectable on each preamp.Drives both dynamic and condenser type mics to line level inputs. Condenser mics sound super excellent on voice with these. Crisp, responsive, slightly creamy and coloured. But very much detailed, clear and robust sounding mic preamps. For a basic demo with microphone and voice, check this link of a mp3 that can be previewed. Stuff like low cost Chinese small diaphragm pencil mics really come to life going through these. Revealing excellent detail and depth.
Dynamic mics like SM58 etc. These are true vintage classic designed and built preamps. Makes an awesome three channel vintage front end upgrade for any digital recording setup. Also perfect for adding three vintage tube mic preamps onto the channel inputs of any console. These can transform generic recording setups into a something more flavourful and inspiring sounding.All in a compact excellent functioning plug and play package. All the original caps and resistors still measure well within their original factory values and the cards have excellent signal to noise. The tubes consist of five NOS RCA 5879 tubes, the sixth tube is a GE version of the 5879, all installed just prior to listing this item and the RCAs have but a few hours usage. If you look at the pics with the 5215 preamp cards, the empty hole on each end section of the preamp modules is where the B+ filtering aluminum cannister cap was housed. Each were removed because of height restrictions in the rack mount chassis as well as clearance for the meter output select switch. 65 year old electrolytics, so these still wouldve been disconnected even if theyd been left mounted on the cards. This also features a switchable AC power input for either 115v North America or 230v Europe. In summary: Three 1955 Gates M5215 Mic Preamps. Racked and powered all in one vintage chassis. Three XLR or 1/4TRS - 150 Microphone inputs Transformer balanced Three 1/4 TRS - 600 transformer balanced outputs.
Selectable phantom power on each channel's input. Magnasync VU meter display, channel selectable. (5) RCA NOS 5879 tubes and (1) good GE 5879. 115v or 230v AC power input selectable.On/off switch, pilot light and fuse. The power supply uses a 12X4 (12 volt equivalent of 6X4) as the rectifier tube. The electrolytics comprising the power supply are new Nichicon PB series.
Power supply transformer is a new Chinese manufacture toroidial type supplying the necessary plate and filament voltages. The power supply, is also shielded by the units aluminum framed inner chassis and well isolated from the audio cards.Lots of vintage bang for the buck in a nice compact rack mountable form. The item "GATES M5215 vintage tube mic microphone preamps RCA 5879 racked and powered (3)" is in sale since Friday, October 4, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Vintage Pro Audio Equipment". The seller is "dee-bay" and is located in Trenton, Ontario.
This item can be shipped to Canada, United States, France, Australia, United Kingdom, Germany, Japan.