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Api 312 cards racked....

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radiance

Ouwe rot
Lid sinds
30 augustus 2002
Berichten
1.979
Locatie
Weer terug in Nederland..Arnhem
Sorry...ff geen zin om opnieuw te schrijven in NEd.

For sale: Dual Api 312 mic pre. 800 euro plus shipping. EU only (230V).
Bank wire transfer preferred..Local pick up possible.

Two original 312 cards, stuffed with remakes from the original Api 2520 opamp and in & output transformers (see description below).
Frontpanel is 3mm black aluminium, engraved with orange in fill, it's beautiful!
Both cards can be taken out and be used in a Api console or where ever these cards were used. They have the original pin out and are mounted in card connectors...
Beside the normal stuff such as 48V, phase and a Pad switch, and a 12 step gain rotary, there are a few extras which you'll normally not find on these mic pre's.
There's an Hi Z (instrument) input so you can directly plug in your bass guitar or Fender Rhodes.
There's also a full relay bypass switch. I used this unit as gain make up stage for my summing unit and it's very handy to be able to fully bypass it when you're comparing it to another mic pre...i.e. selecting colors for on the master bus.
Because of this I added an extra 48V switch on the backside of the unit. When this switch is set to "off" the 48V switch on the front will not longer work to prevent accidents when this unit is inserted on the master bus.



Here some descriptions on the transformer remakes:


The EA 2622 is a custom made audio input transformer. The 2622 has been designed by Ed Anderson to replicate the transformers found in the vintage API recording consoles from the 1970's. In the console, this transformer was used as the microphone input transformer on the input channels. Albeit a modern footprint, this input transformer will give your mic preamp the same signature vintage tone as an original AP2622. You will not find an input transformer currently being manufactured, that sounds anything like the EA 2622.

The vintage AP2622 is probably most renowned for it’s part in the unique sonic character of the coveted API 312 card. The 312 was originally designed as a “plug-in” mic preamplifier, booster amplifier or line amplifier. With the combination of the 2622 input transformer, the 2520 discrete operational amplifier and the 2503 output transformer, you have one of thee most sought after microphone preamplifiers ever designed. The circuit is ever so simple and the components far from perfect. The inherent phase shift and distortion, are what make it all sound so special.

The output transformer is a remake from the vintage Api 2503 by Cinemag.

here some pics...
 

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