WARM AUDIO / WA-MPX

The WA-MPX faithfully recreates the sound of the mic tube preamps that made rock 'n' roll and radio hits. Premium components and a circuit design faithful to the original provide the analog warmth and reel-to-reel tube tone sought after by today's artists.

Faithfully reproduces the sound of vacuum tube mic preamps from the reel-to-reel era
It is based on the 351-style vacuum tube preamplifier that was installed in the American tape machines that supported rock'n'roll and the birth of hit songs on the radio.

Power and versatility to expand the range of analog tones
Boasting 300V of power and 90dB of tube gain, it delivers clean gain, powerful sound, and can drive the tubes to saturation.

Premium components and hand wired for a realistic vintage experience
Each channel is equipped with three high-quality vacuum tubes and a custom-wound USA CineMag transformer to faithfully reproduce the original analog sound.

Selectable all-analog tape saturation
It uses discrete analog components to achieve reel-to-reel sound with compression, saturation, and non-linear frequency response.

Hone your tone with high-pass (80Hz) & low-pass (2kHz) filters
A 2kHz low-pass filter refines your tone and maximizes midrange warmth and punch. 80Hz high-pass filter removes unwanted bass noise from the sound source.

Hand inspected & tested at Warm Audio headquarters in Austin, Texas
At Warm Audio's headquarters in Austin, Texas, our trained engineers and musicians conduct thorough testing to ensure the best possible sound.

■Various preamp tones
・Wide, clean tube tone with 3 vacuum tubes on each channel
・Natural harmonic distortion and compression created by vacuum tubes can be achieved by dial operation.
・“Tape Sat” switch enables all-analog tape saturation
・Suitable for all uses with vintage sound + latest connectivity

■Features and specifications
- Faithfully reproduces the sound of vacuum tube preamps from the reel-to-reel era.
・Completely discrete configuration with three hand-made vacuum tubes per channel for the ultimate analog sound
・Tape saturation adds harmonic distortion and natural compression
・Analog tube gain with 90dB/channel
・Uses custom wound, large diameter CineMag USA transformer
・Mic input: 600Ω transformer (6000Ω rating)
・Mic input (when ""Tone"" is activated): 150Ω transformer (1500Ω rating)
・Equipped with premium 12AX7(x2), 12AU7(x1) vacuum tubes
・Equipped with 600Ω output attenuator
- High gain control adds 20dB (vs. 70dB to 90dB) of clean gain to the third tube in the circuit, making it suitable for low output microphones and low volume sound sources.
・Equipped with 48V phantom power and polarity switch
Classic warm audio tone control that changes input transformer impedance and adds analog color
・Bass control with 80Hz high-pass filter
・2kHz low-pass filter concentrates the power and warmth of the preamp in the midrange, creating a punchy sound
・Tape saturation adds harmonic distortion and natural compression for an authentic analog feel.
・Input: Microphone (XLR), Instrument (TS phone), Line (TRS phone)
・Output: Line level (XLR/TRS)
・Level display with VU meter
・Frequency characteristics 20Hz-20kHz
- Aluminum faceplate, steel chassis, vintage Bakelite style knobs
*This product has a 115V specification in its home country, but it can also be used in a 100V environment in Japan.