ผู้เขียน หัวข้อ: Focusrite Red One 500-Series Rack Module Mic Preamp  (อ่าน 687 ครั้ง)

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Focusrite Red One 500-Series Rack Module Mic Preamp
« เมื่อ: 29 มิถุนายน 2014, 08:14:41 PM »
Focusrite Red One 500-Series Rack Module Mic Preamp



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Red 1 500 Series Mic Pre (500 Series Module)




The Red Range of audio processors from Focusritehave deserved legendary status in the audio community. Featuring the same circuit topology and components as the original transformer-based microphone preamp design, the Red 1 500 Series Mic Pre offers the same performance as the original Red microphone preamp while housed in a 500 Series "Lunchbox" module.

The list of features include an "original-specified" custom wound Lundahl LL1538 input transformer, switchable phantom power, polarity invert, and an illuminated classic porthole VU meter. The custom Carnhill output transformer easily drives long cable runs without loss of quality, making the unit ideal for remote recordings as well as for use in the studio.

Microphone gain is switched in 6 dB steps using a Grayhill gold-plated military-grade switch, over a range of -6 dB to +60 dB, allowing for precise channel matching and recall. Excellent audio performance is maintained over a wide range of input impedances, making the Red 1 500 suitable for almost any microphone - ribbon, dynamic or condenser.

The amplifier topology delivers good common mode rejection, provides a healthy overload margin, and with a shared gain structure from the transformer and the amplifier, a very low noise floor. Additionally, the unit maintains the traditional wide bandwidth of the original Red series preamp. The Red 1 fits in all 500 series compatible power supplies (required and sold separately).

Recreation of the original Red 1 microphone preamp, using original Red circuit topology and components to deliver the Focusrite Red signature sound

500 Series "Lunchbox" format




Lundahl LL1538 input transformer, the same as used in the original Red modules

Carnhill custom output transformer contributes to the sound of the preamp, but also allows for driving long lines, ideal for remote and mobile applications

Grayhill gold-plated mil-grade gain switch

Gain from -6 dB to +60 dB in 6 dB steps and a specific input impedance makes the preamp perfect for use with almost any microphone - ribbon, dynamic or condenser

Backlit VU meter with switchable calibration

Polarity invert and +48V phantom power





Specifications:

Type      Microphone preamplifier

Number of Channels      Single

Inputs   On 500 series chassis

Outputs       On 500 series chassis

Gain       +60 dB

Phantom Power       +48V, switchable

Frequency Response     10 Hz to 140 kHz

Meter    Backlit VU meter with switchable calibration

Power Requirements     From 500 series chassis


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