Product Overview
The Zoom MS-90LP+ MultiStomp Looper Pedal is a versatile guitar pedal designed for musicians seeking advanced looping capabilities and high-fidelity audio processing. It integrates extensive recording features with a wide range of effects, all within a compact and durable unit.
- Superior Tone Quality: Features 32-bit float signal processing and a 20 Hz - 20 kHz frequency response for exceptional clarity.
- Extended Recording: Capture up to 90 minutes for a single loop or over 13 hours total across 100 memories.
- Versatile Connectivity: Includes standard mono phone jacks for inputs/outputs and a stereo mini jack for MIDI In/Out.
- Enhanced Visual Feedback: Equipped with a 160 x 128 dot-matrix LCD with a vibrant color backlight.
- Robust Power Options: Can be powered by a 9V DC 500mA AC adapter or two AA batteries, offering up to 5 hours of operation.
Setup Guide
Follow these steps to set up your Zoom MS-90LP+ pedal for optimal performance.
Powering the Device
The MS-90LP+ can be powered using either an AC adapter or AA batteries.
- AC Adapter: Connect a 9V DC 500mA AC adapter (not included) to the DC 9V input jack on the rear of the unit. Ensure the adapter meets the specified voltage and current requirements.
- Batteries: Open the battery compartment on the underside of the pedal. Insert two AA batteries, ensuring correct polarity. The pedal can operate for up to 5 hours on battery power.
Figure 1: Battery compartment with two AA batteries.
This image shows the underside of the Zoom MS-90LP+ pedal with the battery compartment cover removed, revealing two AA batteries correctly inserted. This illustrates how to power the device using portable batteries.
Connecting Your Instruments and Audio Devices
The pedal offers various input and output options for seamless integration into your setup.
- Instrument Input: Connect your guitar or other instrument to the mono phone input jacks (L/R) on the sides of the pedal.
- Audio Output: Connect the mono phone output jacks (L/R) to your amplifier, mixer, or audio interface.
- MIDI Connectivity: Use the stereo mini jack for MIDI In/Out to connect to external MIDI devices for control and synchronization.
- USB Connection: The USB 2.0 Type-C port allows for connection to a computer for firmware updates and data transfer.
Figure 2: Rear panel connections.
This image displays the rear panel of the Zoom MS-90LP+ pedal, highlighting the MIDI In and Out ports, the DC 9V power input, and the USB-C port. These are essential for connecting the pedal to other audio equipment, MIDI controllers, and computers.
Figure 3: Side panel audio jacks.
This image shows the side of the Zoom MS-90LP+ pedal, clearly displaying the mono input and output jacks. These are used for connecting instruments and sending the processed audio signal to an amplifier or other audio equipment.
Operating Instructions
The MS-90LP+ is designed for intuitive operation, allowing you to create and manipulate loops with ease.
Main Controls and Display
The pedal features a clear LCD and dedicated footswitches and knobs for various functions.
Figure 4: Front panel controls.
This image provides a clear top-down view of the Zoom MS-90LP+ pedal, showcasing its vibrant backlit LCD screen, four rotary knobs (Memory, Loop FX, Rhythm, Menu), and the five main footswitches (Loop FX, Rhythm, Undo, Stop/Hold/Clear, and the central Rec/Play switch). This layout is central to operating the pedal's various functions.
- LCD Display: The 160 x 128 dot-matrix LCD provides visual feedback on loop status, effects, rhythm patterns, and menu navigation.
- Footswitches: Dedicated footswitches allow for hands-free control of recording, playback, undo, stop, loop effects, and rhythm patterns.
- Control Knobs: Four rotary knobs provide quick access to memory selection, loop effects parameters, rhythm settings, and menu navigation.
Figure 5: Detailed view of footswitches.
This close-up image focuses on the footswitches and the central rotary knob of the Zoom MS-90LP+ pedal. It highlights the "LOOP FX", "RHYTHM", "UNDO", and "STOP/HOLD/CLEAR" footswitches, along with the central "REC/PLAY" knob, which is crucial for real-time loop manipulation.
Looping Functionality
The MS-90LP+ offers extensive looping capabilities:
- Recording: Press the central REC/PLAY footswitch to start recording. The pedal supports up to 90 minutes for a single loop.
- Overdubbing: Press REC/PLAY again to overdub additional layers onto your existing loop.
- Playback: Press REC/PLAY to play back your loop.
- Undo/Redo: Use the UNDO footswitch to remove the last recorded layer.
- Stop/Clear: Press the STOP footswitch to stop playback. Hold the STOP footswitch to clear the current loop.
- Loop Memory: The pedal can store over 13 hours of total recording across 100 memory slots. Use the MEMORY knob to navigate and select different loop memories.
Effects and Rhythm Patterns
- Loop FX: Engage and control various loop effects using the LOOP FX footswitch and corresponding knob.
- Rhythm Patterns: Access and select built-in rhythm patterns using the RHYTHM footswitch and knob to add drum tracks to your loops. The quantizing feature helps keep your loops in time with the rhythm.
For detailed information on specific effects and rhythm patterns, refer to the on-screen menu accessible via the MENU knob.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your MS-90LP+ pedal.
- Cleaning: Use a soft, dry cloth to wipe down the pedal. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish and internal components.
- Battery Replacement: Replace batteries promptly when the low battery indicator appears or when performance degrades. Always use fresh, high-quality AA batteries. Remove batteries if the pedal will not be used for an extended period to prevent leakage.
- Storage: Store the pedal in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Protect it from dust and physical impact.
- Firmware Updates: Periodically check the official Zoom website for firmware updates. Updates can improve performance, add features, or fix bugs. Use the USB-C port for firmware updates as per manufacturer instructions.
Troubleshooting
This section addresses common issues you might encounter with your MS-90LP+ pedal.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Pedal does not turn on |
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| No sound output |
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| Loop recording issues (e.g., too short, poor quality) |
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| MIDI control limitations |
| The MS-90LP+ currently supports MIDI Program Change messages and clock synchronization only. External MIDI controllers cannot emulate the pressing of the pedal's footswitches. This is a characteristic of the current firmware (as of version 1.05, Feb 2025). Check Zoom's official website for potential future firmware updates that may expand MIDI functionality. |
Specifications
| Feature | Detail |
|---|---|
| Item Weight | 1.01 pounds |
| Product Dimensions | 5.9 x 3.35 x 2.7 inches |
| ASIN | B0DT471R4C |
| Item Model Number | MS-90LP+ |
| Connector Type | USB 2.0 Type-C |
| Hardware Interface | 1/4-inch Audio |
| Signal Format | Digital |
| Power Source | Battery Powered (2x AA) or 9V DC 500mA AC Adapter |
| Voltage | 28.0V (Internal circuit voltage) |
| Brand | Zoom |
| Style | Durable Structure |
| Amperage | 16A (Value from source data, typically lower for pedals) |
| Audio Processing | 32-bit float |
| Frequency Response | 20 Hz - 20 kHz |
| Loop Recording Time (Single) | Up to 90 minutes |
| Total Loop Memory | Over 13 hours across 100 memories |
| LCD Display | 160 x 128 dot-matrix with color backlight |
Warranty and Support
For detailed warranty information, please refer to the documentation included with your purchase or visit the official Zoom website. Warranty terms and conditions may vary by region.
For product support, technical assistance, or to download the latest firmware and manuals, please visit the official Zoom support page or their Amazon store:
Official Product Videos
No official product videos from the seller were found in the provided data for the Zoom MS-90LP+ MultiStomp Looper Pedal. Please check the manufacturer's official website or product page for any available video demonstrations or tutorials.
