Warm Audio WA-MPX / WA-2MPX Tube Mic Preamplifier User Manual

User manual for Warm Audio WA-MPX and WA-2MPX tube microphone preamplifiers, covering setup, controls, specifications, and warranty.

Warm Audio WA-MPX / WA-2MPX Tube Mic Preamplifier User Manual - cover page
Brand
Warm Audio
Category
Audio Power Amplifier
Document type
User Manual
Language
English
Pages
68
File format
PDF
File size
1.8 MB
Published
03 October, 2026
Updated
03 October, 2026
MD5 checksum
5145A47508031DE89F7B37C121141B7F
PDF
Warm Audio WA-MPX / WA-2MPX Tube Mic Preamplifier User Manual PDF

About this manual

The WA-MPX and WA-2MPX are single‑ and dual‑channel tube microphone preamplifiers that use premium 12AX7 and 12AU7 tubes, custom CineMag transformers, and a range of tone‑shaping switches to deliver classic tape‑era warmth. Warm Audio hand‑assembles each unit in Austin, Texas, and provides a 14‑day registration window for warranty support.

This manual explains how to register the product, describes each front‑ and rear‑panel control, provides wiring diagrams for single‑ and dual‑channel configurations, lists full technical specifications, and outlines safety and warranty information.

What's inside

  • Thank You
  • Warranty Statement
  • Technical Specs – Front Panel (Single‑Channel)
  • Technical Specs – Rear Panel (Single‑Channel)
  • Technical Specs – Front & Rear Panel (Dual‑Channel)
  • Sample Hookup Diagram (Single‑Channel)
  • Sample Hookup Diagram (Dual‑Channel)
  • Specifications
  • Safety Instructions

Specifications

Analog Tube Gain per Channel90 dB
Input Transformer Impedance (Tone Off)600 Ω (6000 Ω rated)
Input Transformer Impedance (Tone On)150 Ω (1500 Ω rated)
Tubes per Channel2 × 12AX7 + 1 × 12AU7
Frequency Response20 Hz – 20 kHz
Power InputIEC 115 V / 230 V
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