Sarrera
The MXR M233 Micro Amp+ is an advanced guitar and bass effects pedal designed to boost and enhance your instrument's tone. Building upon the classic Micro Amp circuit, this pedal features added EQ controls (Bass and Treble), low-noise operational amplifiers, and true bypass switching for superior signal integrity. It provides up to +26dB of clean boost, allowing you to drive your amplifier harder or increase your signal level for solos.
Segurtasun Informazioa
- Use only the specified 9V DC power supply (center-negative). Incorrect power supplies can damage the unit and void the warranty.
- Ez jarri pedala muturreko tenperaturen, hezetasunaren edo eguzki-argiaren eraginpean.
- Saihestu pedala erortzea edo kolpe bortitzak jasatea.
- Do not attempt to open the pedal enclosure or modify its internal components. Refer all servicing to qualified personnel.
- Mantendu haurren eskura.
Paketearen edukia
Your MXR M233 Micro Amp+ bundle includes:
- MXR M233 Micro Amp+ Pedal
- 9V DC Power Supply (not explicitly listed in product data, but implied by 'PSU' in model number and standard pedal operation)
- Two (2) Instrument Cables
- Two (2) Patch Cables
- Erabiltzailearen eskuliburua (dokumentu hau)
Produktua amaituview
The MXR M233 Micro Amp+ features intuitive controls for precise tone shaping and signal boosting.

1. irudia: Aurrealdea view of the MXR M233 Micro Amp+ pedal, showing the Gain, Bass, and Treble control knobs, the footswitch, and the Input/Output jacks.
Controls and Jacks:
- GAIN botoia: Adjusts the amount of boost applied to your signal, from unity gain up to +26dB.
- BASS botoia: Controls the low-frequency response of the boosted signal. Turn clockwise for more bass, counter-clockwise for less.
- TREBLE botoia: Controls the high-frequency response of the boosted signal. Turn clockwise for more treble, counter-clockwise for less.
- INPUT Jacka: Connect your instrument or the output of another effects pedal here.
- IRTEERA Jack: Konektatu hau zurekin amplifizatzailearen sarrera edo zure seinale-kateko hurrengo pedalaren sarrera.
- OINETAILUA: Toggles the effect on and off. The LED illuminates when the effect is active.
- 9V DC sarrera: Connect a 9V DC (center-negative) power adapter here.

2. irudia: Atzekoa view of the MXR Micro Amp+ pedal, highlighting the 9V DC power input jack.
Konfigurazioa
Follow these steps to connect your MXR M233 Micro Amp+ pedal:
- Potentzia-konexioa: Connect a 9V DC (center-negative) power adapter to the 9V DC input jack on the pedal. Ensure the power adapter is compatible to prevent damage.
- Tresnaren konexioa: Use one of the provided instrument cables to connect your guitar or bass to the SARRERA jack of the Micro Amp+.
- AmpLider Konexioa: Use another instrument cable to connect the IRTEERA jack of the Micro Amp+ to your ampbizitzailearen sarrera.
- Signal Chain Integration (Optional): If integrating into an existing pedalboard, use the provided patch cables to connect the Micro Amp+ between other effects pedals. The Micro Amp+ is typically placed early in the signal chain to boost the instrument's signal before other effects, or later to boost the overall signal for solos.

3. irudia: Example of an instrument cable included in the bundle.

4. irudia: Example of a patch cable included in the bundle.
Funtzionamendu-argibideak
Once connected, operate your MXR M233 Micro Amp+ as follows:
- Activate the Pedal: Press the footswitch to engage the effect. The LED will light up, indicating the pedal is active. Press again to bypass the effect (true bypass).
- Doitu irabazia: Biratu IRABAZI knob clockwise to increase the boost level. Start with the knob at a lower setting and gradually increase to achieve the desired volume and drive.
- Shape Tone with EQ:
- BAXUA: Egokitu BASS knob to add or cut low frequencies. For a classic Micro Amp sound, set this knob to the 12 o'clock (noon) position.
- Treble: Egokitu ALTZARRA knob to add or cut high frequencies. For a classic Micro Amp sound, set this knob to the 12 o'clock (noon) position.
- Esperimentua: The optimal settings will vary depending on your instrument, amplifier, and other pedals. Experiment with different knob positions to find the sound that best suits your needs.
Mantentzea
To ensure the longevity and optimal performance of your MXR M233 Micro Amp+:
- Garbiketa: Garbitu pedala zapi leun eta lehor batekin. Ez erabili garbitzaile edo disolbatzaile urratzailerik.
- Biltegiratzea: Gorde pedala leku fresko eta lehor batean, erabiltzen ez duzunean, eguzki-argitik eta muturreko tenperaturetatik babestuta.
- Kableen zainketa: Handle instrument and patch cables carefully. Avoid sharp bends or kinks that can damage the internal wiring.
- Elikatze-iturria: Pedala denbora luzez erabiltzen ez duzunean, deskonektatu beti korronte-iturria.
Arazoak konpontzea
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Ez dago soinurik pedala aktibatuta dagoenean. | Incorrect power supply, faulty cables, incorrect connections, pedal bypassed. | Verify 9V DC (center-negative) power supply. Check all cable connections. Ensure footswitch LED is illuminated. Test cables with another device. |
| Zarata edo burrunba gehiegi. | Lurreko begizta, elikatze-iturri akastuna, beste elektronika batzuen interferentziak. | Use a high-quality isolated power supply. Try a different power outlet. Move pedal away from other electronic devices. Check for faulty cables. |
| LEDa ez da pizten. | No power, faulty power supply, pedal not engaged. | Ensure power supply is connected and functional. Press the footswitch to engage the effect. |
| Boost level is too low/high. | GAIN knob setting. | Adjust the GAIN knob to the desired level. |
If you continue to experience issues, please contact customer support.
Zehaztapenak
| Ezaugarri | Xehetasuna |
|---|---|
| Eredua | M233 Micro Amp+ |
| Seinalearen formatua | Analogikoa |
| Audio Irteerako Efektuak | Aurreamp / Boost |
| Gehienezko irabazia | +26dB |
| Energia iturria | Kable bidezko korronte elektrikoa (9V DC, erdiko negatiboa) |
| liburukiatage | 9 Volt |
| Aldaketa | Benetako saihesbidea |
| Elementuaren pisua | 1.68 pounds (pedal and bundle accessories) |
| Paketearen neurriak | 11.3 x 9.96 x 2.99 hazbete |
| Kolorea | Zuria |
Bermea eta Laguntza
This product is covered by a manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official MXR website. For technical support, troubleshooting assistance, or warranty claims, please contact the retailer where the product was purchased or the manufacturer's customer service department.
For additional resources and product information, you may visit the official MXR webgunea: www.jimdunlop.com/mxr/





