Warm Audio
Warm Audio WA-MPX | New
Best tube preamp for producers seeking authentic vintage analog warmth.
Experience the legendary sound of early rock 'n' roll with the Warm Audio WA-MPX. This single-channel tube microphone preamp authentically reproduces a revered vintage unit, delivering the warm, analog tone that defined hit recordings. Featuring premium components, a true-to-original circuit design, and up to 90dB of tube gain, the WA-MPX brings authentic vintage character to your modern studio. Its selectable tape saturation effect and built-in filters offer versatile tone-shaping capabilities for a truly classic sound.
$715.00
Owner Satisfaction
4.6
/ 5
Category Rank
246
/ 565
#246 in Microphone Preamps
Price vs Category Average
-56%
Below average
Number of Channels
1
Who it's for
- Budget-conscious engineers wanting premium vintage sound without the high cost
- Modern recordists needing versatile gain and tape-style saturation options
- Digital producers seeking classic analog warmth and harmonic character
Who should skip it
- Stereo recording enthusiasts needing multiple channels for drum overheads
- Studio owners with limited rack space or heat management concerns
- Engineers requiring clean, transparent, and uncolored signal paths
Performance breakdown
Tube Saturation Character
Delivers the thick, harmonic richness synonymous with classic tube-driven recordings.
Gain Headroom
Massive 90dB of gain handles even the most demanding ribbon microphones effortlessly.
Build Integrity
Hand-wired construction and premium CineMag transformers ensure long-term studio reliability.
Tone Shaping Versatility
Integrated filters and tape saturation provide essential control over vintage color.
Sonic Authenticity
Faithfully recreates the elusive, sought-after sound of early rock 'n' roll.
Workflow Integration
Single-channel design is straightforward but lacks the flexibility of multi-channel units.
Key Specs
Number of Channels
1
Maximum Gain
90dB
Circuit Type
Tube
Build Quality
Handwired Construction
Transformer
Custom-wound USA CineMag
Tape Saturation Speed
15IPS emulation
Low-Pass Filter Frequency
2kHz
High-Pass Filter Frequency
80Hz
Features
- Authentic vintage tube preamp reproduction
- Delivers 90dB of rich tube gain
- Hand-assembled with premium tubes
- Custom USA CineMag transformers
- Selectable analog tape saturation effect
- Integrated hi-pass and low-pass filters
- Adds timeless analog warmth and color
- Hand-tested for quality assurance
What customers say
The Warm Audio WA MPX earns high praise for delivering authentic vintage tube coloration affordably. Users consistently highlight its rich, warm saturation, noting its ability to inject desirable analog depth and glue into vocals, drums, and bass. It excels not only as a microphone preamp but also as a versatile line driver and instrument DI, adding professional sonic weight during tracking and mixing. Reviewers emphasize that despite its accessible price point compared to boutique options, the core sonic performance remains exceptional. The consensus is that the WA MPX offers outstanding value for achieving that sought after, classic tube warmth.
Know before you buy
The WA-MPX is designed to emulate the classic, high-gain tube preamps of the early rock 'n' roll era. It provides a thick, saturated analog warmth that adds harmonic richness and vintage color to your vocal and instrument recordings.
Yes, the selectable tape saturation emulates the 15IPS tape speed effect. It adds a subtle compression and harmonic distortion that helps smooth out transients and glue your tracks together for a more polished, vintage feel.
Absolutely. With 90dB of tube gain, the WA-MPX has more than enough headroom to drive even the most demanding ribbon or dynamic microphones that typically require a lot of clean gain.
The 80Hz high-pass filter is useful for cleaning up low-end rumble, while the 2kHz low-pass filter helps tame harsh high frequencies. These are integrated directly into the circuit, allowing you to shape the tone at the source before it hits your interface.
These transformers are critical to the unit's authentic vintage sound. They provide the necessary impedance matching and contribute to the specific harmonic saturation and frequency response that defined the classic preamps this unit reproduces.
Yes, it is an excellent front-end for any modern digital audio workstation. It bridges the gap between digital precision and analog character, giving your recordings the depth and weight often missing from purely digital signal chains.
Still have a question?
Ask Hayley anything about this product before you decide.