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Seventh Circle Audio SCA J99 Mic Microphone Preampwith two highly acclaimed discreet 990C op-amps based on the John Hardy/Jensentwin servo design by John Hardy. Comes with power supply in one shot chassis socan be used independently as it is straight into recording interface ormixer. You will notice other connections/ Mic Input on back.
I no longer record but it was only used on a small number of occasions so is infull working order and excellent condition. Get yourself a top quality pre-ampfor voice and instruments. Read reviews on-line. This is a copy of the JohnHardy Twin Servo Design which has top class components and sounds fantastic.Voted by many studios as the best voice preamp in the world.
J99 Microphone Preamp
The SCA J99 is a flexible, high-gain, low-noise,low-distortion microphonepreamplifier, based on the classic Jensen Twin Servo design. This is a greatpreamp to use when a neutral sonic character is required, but the slightestamount of euphonic transformer coloration is desired.
This includes the 990C-style op-amps
Features
High Gain
The J99 can provide 70dB of gain which includes the voltage step-up provided bythe input transformer. Jumpered for 300 ohms input impedance, the maximum gainavailable is not quite 76dB.
Low Noise
With an EIN approaching -130dB, the J99 is quiet enough to use in virtually anyrecording application, especially with low-output ribbon mics.
Dual DC Servos
The J99 has a DC servo for each op-amp and uses no capacitors in the signalpath.
Stepped Gain Control
A 12 position Grayhill switch provides accurate and repeatable gain settings in5dB steps from 15dB to 70dB.
Gain Trim
Since 5dB is often too big a gain step, the A12also has a gain trim control,which provides up to 6dB of cut at any gain setting. This allows very fineadjustment of gain between steps.
Phase Reverse
Inverts the signal phase.
Phantom Switch
Slow-rise phantom power minimizes pops and thumps.
Neutrik Connectors
High quality PC mount connectors eliminate cabling and ease assembly.
Lundahl Input Transformer
The J99 uses a Lundahl 1538XL to couple the microphone signal to the amplifier.This transformer is used in a number ofhigh-end preamps and it providessuperior performance in a compact package.
Cinemag Output Transformer
The CineMag CMOB-2H output transformer provides abalanced, floating output withextremely low distortion and wide bandwidth.
Flexible Power Supply
On-board voltage regulators can accommodate powersupplies from +/-15VDC up to+/-35VDC, allowing the use of op-amps with+/-24VDC requirements. Potentiometersallow easy voltage adjustment, makingexperimenting fast and simple. Localregulation also keeps inter-channelcrosstalk extremely low when multiplepreamps share the same power supply.
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Category: Musical Instruments:Pro Audio Equipment:Preamps
Location: Swindon