Aphex Channel Master Microphone Preamp and Input Processor

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    Product Description

    With more and more studios are foregoing consoles in favor of recording and mixing on the computer, the Aphex Channel Master Microphone Preamp and Input Processor proves to be indispensible. Even though there are so many channel strips and similar devices to choose from - this one truly stands out from the crowd providing great performance, features and sound.

    The channel master preamp and processor incorporates seven powerful devices including five of Aphex's exclusive patented technologies inside one compact, single rack space design. The result of this combination is the highest possible audio quality, processing power and flexibility available. The elegant front panel on the channel preamp and processor not only looks great, but is laid out in an easy-to-use workflow with easy to understand labeling. Building on the foundation of the Model 230, the channel master features an instrument input, dedicated output and gain reduction metering, front panel sample rate and clock source selection, and a reference quality internal clock. Further proving the indispensability of the channel master preamp and processor is its adaptability. It can be used in broadcasting, recording studios and live sound.

    The Aphex Channel Master Microphone Preamp and Input Processor Features

    Patented Reflected Plate Amplifier (RPA) Tube Preamp:

    • Ultra-wide bandwidth, maximum gain and headroom
    • Lower operating temperature than conventional tube designs for longer tube life
    • Each unit is individually tuned at the Aphex factory for unparalleled consistency - any two units are a matched pair
    EasyRider Class A Compressor:
    • Aphex's patented Wave Dependent Compressor - automatically adjusts attack and release times according to program complexity
    • No-Knee compression curve circuitry - automatically adjusts compression ratio based on program levels
    • Includes Aphex's 1001 Class A Voltage Controlled Attenuator, used in the Compellor and Dominator
    Logic Assisted Gate:
    • Patented gate technology designed to avoid false triggers, clicks and chattering
    • Split band universal de-esser designed to maintain presence while dramatically reducing sibilance on any voice
    Big Bottom:
    • Patented technology for deeper and more resonant bass with little or no increase in peak output
    Parametric EQ: 
    • For the ability to precisely fine tune the all-important midrange between the Big Bottom and Aural Exciter.
    Aural Exciter:
    • Patented technology for increased presence and clarity with improved detail and intelligibility

    Product Specifications
    Aphex Channel Master Microphone Preamp and Input Processor Specifications

    • Connector: XLR-3F
    • Type: Transformerless, NPN active balanced, tube second stage
    • Input Z: 2k ohms nominal
    • Maximum Input Level (MIL): +25dBu
    • CMRR: >70 dB at 60 Hz
    • Nominal Preamp Gain: 20 to 65 dB
    • Phantom Power: +48VDC
    • Pad: 20dB
    • EIN: -127dBu (Input Shorted)
    • Tube Type: 12AT7/ECC81 Dual Triode
    • OUTPUT:
    • Connector: XLR-3M and 1/4 inch TRS Phone Jacks
    • Type: XLR is Impedance Balanced (may be used unbalanced); TRS is unbalanced
    • Out Z Balanced: XLR 66 ohms
    • Out Z Unbalanced: XLR 33 ohms; TRS 600 ohms
    • Nominal Level: XLR +4dBu; TRS -10dBV
    • Maximum Output Level: +25dBu Unloaded; TRS +11dBV

    • Attack / Release: Program dependent, user variable release baseline
    • Ratio: 4:1
    • Threshold: Fixed
    • Knee: Medium Hard

    • Attack: 0.1 milli-seconds
    • Hold / Release: 300 milliseconds / 400 milliseconds
    • Threshold: Variable -50 to +20dB
    • Depth: Variable, 1 to 58dB

    • Attack: 0.1 milli-seconds
    • Release: 100 milliseconds
    • Threshold: Variable -20 to +20dB
    • Ratio: 5:1
    • Active Band: 4 kHz to 20 kHz Linkwitz-Riley 24 db/octave crossover

    • Connector type - Send: 1/4 inch TRS Phone Jack, Balanced
    • Connector type - Return: 1/4 inch TRS Phone Jack, Balanced
    • Nominal Operating Level: 0 dBu
    • Point of Insertion: Between dynamics processing and equalizers

    • Frequency: 50 Hz to 280 Hz
    • Tune: Off to +12dB

    • Frequency Tune: 240 Hz to 8 kHz
    • Peak / Dip: +/-12dB
    • Q Range: 0.5 to 5

    • Frequency Tune: 500 Hz to 5 kHz
    • Mix: Off to +12dB

    • THD: <.01 percent at +4dBu Out
    • IMD: <.01 percent at +4dBu Out
    • Frequency Response (Flat): 18 Hz to 24kHz +/-1dB

    • Internal Sample Rates: 44.1 KHz, 48 KHz, 88.2 KHz, 96 KHz
    • External Sample Rates: Automatically syncs to any word clock between 32 KHz and 96 KHz
    • Resolution: 24 bits
    • Word Clock Input: BNC Jack, High Z, Captures <1Vp-p to 5Vp-p
    • Word Clock Output: BNC Jack, 75 Ohms, 5Vp-p
    • Dynamic Range: Digital dynamic range greater than analog front end
    • Noise Dither: Dithered by analog preamp noise floor. Equivalent to 16-bit digital audio dither.
    • Level Equivalency: -20dBFS Digital = +4dBu Analog
    • Power requirements: 90-250 VAC 50-60 Hz 12W
    • Dimensions (W x H x D): 19 x 1.75 x 8.25 inches, 482.6 x 44.5 x 209.6 millimeters 1 Rack U
    • Depth Behind Front Panel: 7.5 inches, 190.5 millimeters
    • Weight: 6 pounds, 2.73 kilograms
    Helpful Info about the Manufacturer
    Phone:  818-767-2929 Warranty:  1 Year
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