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Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier

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User Manual for Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier and Equalizer

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Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier and Equalizer Contents of the user manual for the Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier
  • Product category: Microphone Preamps Warm Audio
  • Brand: Warm Audio
  • Description and content of package
  • Technical information and basic settings
  • Frequently asked questions – FAQ
  • Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
  • Authorized service for Warm Audio Microphone Preamps

Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier and Equalizer Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier and Equalizer Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier and Equalizer
User manual for the Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier contain basic instructions that need to be followed during installation and operation. Before starting your appliance, the user manual should be read through carefully. Follow all the safety instructions and warnings, and be guided by the given recommendations. User manual is an integral part of any Warm Audio product, and if it is sold or transferred, they should be handed over jointly with the product. Following the instructions for use is an essential prerequisite for protecting health and property during use, as well as recognition of liability on the part of the manufacturer for possible defects should you make a warranty claim. Download an official Warm Audio user manual in which you will find instructions on how to install, use, maintain and service your product.

And do not forget – unsuitable use of a Warm Audio product will considerably shorten its lifespan!



Product description

The Warm Audio WA273-EQ is a dual-channel, Class-A microphone preamp and equalizer designed to provide up to 80 dB of gain and 3-band EQ for engineers, producers, musicians, and vocalists in mobile-recording rigs and home, project, and commercial studios. It features custom Carnhill transformers and is wired and assembled by hand to deliver the sound and functionality of classic British '73-style preamps.Its inputs include balanced XLR and 1/4" TRS jacks and two front-panel 1/4" TS instrument inputs. Input impedance, polarity, ground lift, and phantom power are switchable. Connect an outboard compressor or equalizer via the 1/4" TS insert send and return jacks. Balanced XLR and 1/4" outputs are fed by output level controls and allow compatibility with most audio interfaces and mixing consoles. The selectable high-pass filter can be set to 50 Hz, 80 Hz, 160 Hz, or 300 Hz for management of unruly bass frequencies.The inductor-based EQ boasts selectable frequencies and Blore Edwards dual-concentric potentiometers. The WA273-EQ is rack-mountable and occupies 2 RU.
  • Occupies 2 RU
  • Dual-channel, Class-A mic preamp and 3-band equalizer wired and assembled by hand
  • Created through years of R&D, careful reverse-engineering, and countless hours of auditioning
  • Designed to function and sound like a classic '73-style preamp
  • Fully discrete, transformer-balanced signal path
  • Custom Carnhill transformers saturate sweetly when pushed
  • Tantalum and polystyrene capacitors in the signal path and an output transistor choice that is smooth in high-gain settings
  • Stepped mic pre gain
  • Selectable low-frequency boost or cut at 35 Hz, 60 Hz, 110 Hz, or 220 Hz
  • Selectable mid-frequency boost or cut at 360 Hz, 700 Hz, 1.6 kHz, 3.2 kHz, 4.8 kHz, or 7.2 kHz
  • Selectable high-frequency boost or cut at 10 kHz, 12 kHz, or 16 kHz
  • Inductor-based EQ and high-pass filter
  • Blore Edwards dual-concentric EQ switching potentiometers
  • Balanced XLR and 1/4" inputs and outputs
  • Front-panel 1/4" TS instrument inputs
  • 1/4" TS insert sends and returns
  • Output controls with 5-segment LED meters
UPC: 713541493148 In the Box Warm Audio WA273-EQ Dual-Channel Microphone Preamplifier and Equalizer
  • IEC Cable
  • Limited 1-Year Warranty
  • Table of Contents




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    Technical parameters

    Warm Audio WA273-EQ Specs

    Rack Height 2 RU
    Number of Channels 2
    Inputs 2 x XLR 3-pin (balanced)
    2 x 1/4" TRS (balanced)
    2 x 1/4" TS (unbalanced)
    Outputs 2 x XLR 3-pin (balanced)
    2 x 1/4" TRS (balanced)
    Phantom Power 48 V
    High-Pass Filter Off, 50 Hz, 80 Hz, 160 Hz, or 300 Hz
    Gain Range Up to 80 dB
    Frequency Response 20 Hz to 20 kHz (

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