Warm Audio WA-MPX Manuel utilisateur
WAMPX & WA2MPX
WAMPX
WA2MPX
SINGLE & DUALCHANNEL TUBE MIC PREAMP
Authentic Reproduction Of The Most Revered Tape-Era Tube Mic Preamp
• ENGLISH (PG 1) • FRANÇAIS (PG 12) • ESPAÑOL (PG 23) • DEUTSCH (PG 34)
• (PG 45) • (PG 56)
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THANK YOU!
Thank you for purchasing the Warm Audio WA-MPX / WA-2MPX. We feel this product line offers the best in terms of
sound, function, and vibe from the classic era of analog recording. We don’t cut corners when it comes to what goes
into our products, and WA-MPX mic preamps are no exception. The WA-MPX preamps use two premium 12AX7 tubes
and one premium 12AU7 tube per channel. Those tubes are accompanied by custom-wound, large-core CineMag
transformers, creating a 90dB, 300v preamp channel loaded with raw analog power. This iconic tube warmth helped
define the sound of artists including Elvis Presley, Kurt Cobain, Bing Crosby, Les Paul, Nat King Cole, and Roy Orbison.
That sound continues to be used by elite audio engineers today to create timeless recordings. The WA-MPX family of
preamps are hand-assembled with premium tubes and custom-wound, large-core CineMag transformers, all carefully
tested by hand at Warm Audio headquarters in Austin, Texas.
Bryce Young
President
Warm Audio
Liberty Hill, Texas USA
REGISTER YOUR WAMPX PRODUCT!
Before we begin, please take the time to visit www.warmaudio.com to register your product. To ensure you receive proper
and uninterrupted warranty support for your product, please register your unit within 14 days from purchase.
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WARRANTY STATEMENT
Warm Audio warranties this product to be free from defect in materials and workmanship for one year from the date of
purchase, for the original purchaser to whom this equipment is registered. This warranty is non-transferrable.
This warranty is void in the event of damage incurred from unauthorized service to this unit, or from electrical or
mechanical modification to this unit. This warranty does not cover damage resulting from abuse, accidental
damage, misuse, improper electrical conditions such as mis-wiring, incorrect voltage or frequency, unstable power,
disconnection from earth ground (for products requiring a 3 pin, grounded power cable), or from exposure to hostile
environmental conditions such as moisture, humidity, smoke, fire, sand or other debris, and extreme temperatures.
Warm Audio will, at its sole discretion, repair or replace this product in a timely manner. This limited warranty extends
only to products determined to be defective and does not cover incidental costs such as equipment rental, loss of
revenue, etc. Please visit us at www.warmaudio.com for more information on your warranty, or to request warranty
service.
This warranty applies to products sold in the United States of America. For warranty information in any other country,
please refer to your local Warm Audio distributor. This warranty provides specific legal rights, which may vary from
state to state. Depending on the state in which you live, you may have rights in addition to those covered in this
statement. Please refer to your state laws or see your local Warm Audio retailer for more information.
NONWARRANTY SERVICE
If you have a defective unit that is outside of our warranty period or conditions; we are still here for you and can get your unit
working again for a modest service fee. Please visit us at www.warmaudio.com to contact us about setting up a repair or for
more information.
With proper care, your Warm Audio gear should last a lifetime and provide a lifetime of enjoyment. We believe the best
advertisement we can have is a properly working unit being put to great use. Let’s work together to make it happen.
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NOW LETS GET STARTED!
The Warm Audio WA-MPX preamps are some of the highest quality microphone preamplifiers on the market in their
price range. They use custom-made components similarly found in preamplifiers with much higher price tags. Home-
based musicians and professional studios alike will find the WA-MPX models to be extremely powerful, versatile and
fully professional pieces of gear that are capable of warming and shaping both input signals and mixes in a way that
is very pleasing to the ear.
The information contained in this manual is written to help you quickly get started using your WA-MPX / WA-2MPX.
TECHNICAL SPECS FRONT PANEL [SINGLECHANNEL]
Note: All applicable LEDs on WA-MPX models will illuminate when their corresponding switches are engaged
1. Input Select Switch
This switch selects either mic, instrument, or line level input.
2. +48V Switch
This switch provides power for condenser mics and any other devices requiring continuous phantom power through the
XLR input. This power is supplied at a constant level to prevent any degradation of audio quality.
3. High Gain Switch
This switch engages the third tube in the channel circuit for an added 20db (from 70dB to 90dB) of clean gain for
low-output mics and low-volume sources - like ribbons and certain dynamic microphones.
4. Polarity Switch
This switch inverts the polarity of the signal. Use the polarity switch when recording with more than one open
microphone to combat phase cancellation between microphones.
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TECHNICAL SPECS FRONT PANEL [SINGLECHANNEL]
5. Tone Switch
This switch changes the input transformer configuration from a 1:9 (step up) turns ratio to a steeper 1:18 (step up) turns
ratio, drawing out a greater degree of coloration and impact from the input transformer. When engaged, the input
impedance of the WA-MPX is 150 ohms. When disengaged, the input impedance of the WA-MPX is 600 ohms. This
feature will make a noticeable tone change to most microphones. The 600 ohms impedance setting is recommended
for condenser and dynamic microphones, and 150 ohms is recommended for dynamic and ribbons. This switch is
labeled “Tone” for a reason; most listeners will find the unswitched setting to be more open and natural, with the en-
gaged setting to be more punchy, aggressive, or thick. We strongly suggest you experiment with both settings on all
sources to find the best possible tone for your recordings. As with all things, let your ear be the final judge on which
setting to use for any given situation.
6. TS Instrument Input
You can connect a variety of instruments via the instrument input on the front panel of the WA-MPX including: acoustic
and electric guitars, bass guitar, keyboards, synths and drum machines.
7. 80Hz Hi-Pass Filter
This switch removes frequencies below 80Hz to help control unwanted bass noise from unruly sources.
8. 2kHz Low-Pass Filter
This switch removes frequencies above 2kHz for more punch and focused midrange.
9. Tape Saturation Control
This switch adds a dedicated circuit of discrete analog components to the already warm tubes, delivering tape-style
saturation - with added natural compression and harmonic distortion.
10. Preamplifier Gain
This knob adjusts the amount of tube gain applied in the WA-MPX channel circuit.
11. VU Meter
The VU meter allows for accurate monitoring of the signal volume exiting the WA-MPX channel.
12. Output Level
This knob acts as a 600 output attenuator, controlling the signal exiting the WA-MPX channel. The output level
ensures that the amplified signal doesn’t exit the WA-MPX at too-high a volume and prevents overloading the inputs
on your recording interface or the next device in the signal chain. It also gives greater ability to drive the gain of the
preamp harder resulting in greater colorization and tone shaping within the various settings.
13. Power Switch
This switch is used to power the unit on and off. LED light will indicate if the unit is powered on. To extend the life of the
electronics please turn WA-MPX units off when not in use.
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TECHNICAL SPECS REAR PANEL [SINGLECHANNEL]
1. IEC AC POWER INLET
Connect the accompanying power cord to power the unit.
2. Voltage Switch
Always use the correct rating (115v or 230v) that corresponds with local power requirements, as indicated by the red
voltage switch.
3. Balanced Line Outputs (XLR & TRS)
Balanced outputs are provided on an XLR and ¼” TRS connection for convenience.
4. Mic / Line Input
The back of the unit offers both Mic (XLR) and Line (TRS) balanced inputs for convenience. The mic input is designed for
dynamic, condenser and ribbon microphones. Other instruments or devices that put out a low level microphone signal
can also be plugged into this input. The line input is designed for line level instruments or sources that put out line level
signals such as some keyboards, electric instruments or audio interface outputs.
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WA2MPX TECHNICAL SPECS FRONT & REAR PANEL [DUALCHANNEL]
A simple list of feature / specification identification will be provided below the WA-2MPX product images.
For detailed descriptions of the feature functionality, please refer to the descriptions found in the WA-MPX
(single-channel) technical specs section.
Note: All applicable LEDs on WA-2MPX models will illuminate when their corresponding switches are engaged
WA-2MPX - FRONT PANEL [DUAL-CHANNEL]
1. Input Select Switch
2. Preamplifier Gain
3. Output Level
4. VU Meter
5. TS Instrument Input
6. +48V Switch
7. High Gain Switch
8. Polarity Switch
9. Tone Switch
10. 80Hz Hi-Pass Filter
11. 2kHz Low-Pass Filter
12. Tape Saturation Control
13. Power Switch
14. [Channel 2] VU Meter
15. [Channel 2] Preamplifier Gain
16. [Channel 2] Output Level
17. [Channel 2] Input Select Switch
18. [Channel 2] +48V Switch
19. [Channel 2] High Gain Switch
20. [Channel 2] Polarity Switch
21. [Channel 2] Tone Switch
22. [Channel 2] 80Hz Hi-Pass Filter
23. [Channel 2] 2kHz Low-Pass Filter
24. [Channel 2] Tape Saturation Control
25. [Channel 2] TS Instrument Input
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WA2MPX REAR PANEL [DUALCHANNEL]
1. IEC AC POWER INLET
Connect the accompanying power cord to power the unit.
2. Voltage Switch
Always use the correct rating (115v or 230v) that corresponds with local power requirements, as indicated by the red
voltage switch.
3. Balanced Line Outputs (XLR & TRS)
Balanced outputs are provided on an XLR and ¼” TRS connection for convenience.
4. Mic / Line Input
The back of the unit offers both Mic (XLR) and Line (TRS) balanced inputs for convenience. The mic input is designed for
dynamic, condenser and ribbon microphones. Other instruments or devices that put out a low level microphone signal
can also be plugged into this input. The line input is designed for line level instruments or sources that put out line level
signals such as some keyboards, electric instruments or audio interface outputs.
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WAMPX SAMPLE HOOKUP DIAGRAM [SINGLECHANNEL]
WA-MPX
WA-2A
RECORDING INTERFACE
In this example, a microphone is connected to a WA-MPX input, which sends signal into the WA-2A compressor via a
balanced XLR patch cable, which feeds in the LINE LEVEL input of your recording interface/recorder.
Note: it is important to use a line level input on your recording device as opposed to a microphone or instrument
level input.
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WA-2MPX SAMPLE HOOKUP DIAGRAM [DUAL-CHANNEL]
WA-2MPX
One great way to get that extra analog color to final mixes or masters is to run the stereo outputs through premium,
discrete analog gear. Using the WA-2MPX, you can send audio to a set of stereo outs on your recording interface,
into the WA-2PMX inputs, and then route the outputs on WA-2MPX to stereo inputs on your recording interface. Those
new input channels will fully pass through the discrete analog components inside WA-2MPX.
Try flipping on the tape saturation switch for added compression, saturation (harmonic distortion), and modified tone
filtering for even more tape-era analog mojo!
Note: Remember that the WA-2MPX OUTPUTS go to interface INPUTS, and WA-2MPX INPUTS go to interface
OUTPUTS. Your interface will require 2 extra INPUTS and 2 extra OUTPUTS to route the audio this way.
ADD ANALOG SATURATION TO STEREO MIXES WITH YOUR RECORDING INTERFACE
Ce manuel convient aux modèles suivants
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