1. Introduction
The M-Audio Hammer 88 is a professional-grade USB MIDI keyboard controller featuring 88 fully weighted, hammer-action keys. Designed for musicians and producers seeking a realistic piano feel, it provides seamless integration with virtual instruments and digital audio workstations (DAWs). This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Hammer 88 controller.

Image 1.1: The M-Audio Hammer 88 USB MIDI Keyboard Controller, a full 88-key unit with a music rest.
2. Package Contents
Before you begin, please verify that all items listed below are included in your package:
- M-Audio Hammer 88 USB MIDI Keyboard Controller
- USB Cable
- Music Rest
- Software Production Package Download Cards (MPC Beats, Ableton Live Lite, Mini Grand, 7 Virtual Instruments from AIR Music Tech, 9 Akai Professional MPC Expansion Packs)
- User Guide (this document)
- Safety & Warranty Manual
3. Setup
3.1 Connecting the Hammer 88
The Hammer 88 is a class-compliant device, meaning it does not require special drivers for basic functionality with most operating systems (Windows, macOS). It is powered via USB.
- Connect the included USB cable from the Hammer 88's USB port to an available USB port on your computer.
- For iOS connectivity, use an Apple iPad Camera Connection Kit (sold separately) to connect the Hammer 88 to your iPad or other iOS device.
- Connect optional sustain, expression, and soft pedals to the dedicated inputs on the rear panel.

Image 3.1: Rear panel of the Hammer 88 showing USB port and pedal inputs.
3.2 Software Installation
The Hammer 88 includes a comprehensive software production suite. Follow the instructions provided with your software download cards to register and install the included applications and virtual instruments. These typically include MPC Beats, Ableton Live Lite, Eighty Eight Ensemble, AIR Music Tech’s Velvet, Mini Grand, DB33, and Touch Loops.

Image 3.2: Overview of the software titles included with the Hammer 88.
Important Note:
The M-Audio Hammer 88 is a MIDI controller and does not produce sound on its own. To hear sound, you must connect it to a computer or iOS device running music software (DAW or virtual instrument) that can interpret the MIDI data sent by the Hammer 88 and generate audio output.
4. Operating the Hammer 88
4.1 Basic Playback
Once connected and your music software is configured, you can begin playing the 88 hammer-action keys. The velocity-sensitive keys respond to the force of your touch, allowing for expressive performances.

Image 4.1: Close-up view of the 88 full-sized, hammer-action, velocity-sensitive keys.
4.2 Controls and Modifiers
The Hammer 88 features dedicated controls for real-time performance adjustments:
- Pitch Bend Wheel: Used to smoothly raise or lower the pitch of notes.
- Modulation Wheel: Typically used to add vibrato or other effects to the sound. Its function can be assigned within your software.
- Volume Control: Adjusts the overall MIDI output volume.
- Octave Up/Down Buttons: Shift the keyboard's octave range.

Image 4.2: Hand demonstrating the use of the pitch bend and modulation wheels.
4.3 Pedal Inputs
The Hammer 88 supports external pedals for enhanced control:
- Sustain Pedal Input: Connect a standard sustain pedal for piano-like sustain.
- Expression Pedal Input: Connect an expression pedal for continuous control over parameters like volume or effects.
- Soft Pedal Input: Connect a soft pedal for a softer piano tone.
5. Maintenance
To ensure the longevity and optimal performance of your M-Audio Hammer 88, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the surface of the controller. For stubborn dirt, a slightly damp cloth can be used, followed by a dry cloth. Avoid abrasive cleaners, solvents, or waxes.
- Storage: Store the Hammer 88 in a cool, dry place away from direct sunlight, extreme temperatures, and excessive humidity. If transporting, use appropriate padding and a protective case.
- Dust Protection: When not in use, cover the keyboard with a dust cover to prevent dust and debris from accumulating on the keys and internal components.
- Cable Management: Ensure all cables are connected securely but without excessive strain. Avoid sharp bends or kinks in the USB cable.
6. Troubleshooting
If you encounter issues with your Hammer 88, refer to the following common problems and solutions:
6.1 No Sound from the Keyboard
- MIDI Controller Functionality: Remember that the Hammer 88 is a MIDI controller and does not produce sound directly. Ensure it is connected to a computer or iOS device running music software.
- Software Configuration: Verify that your music software (DAW, virtual instrument) is correctly configured to receive MIDI input from the Hammer 88 and that a sound-producing instrument track is selected and armed for recording/playback.
- Audio Output: Confirm that your computer's or iOS device's audio output is working and connected to speakers or headphones.
6.2 Connectivity Issues
- USB Connection: Ensure the USB cable is securely connected to both the Hammer 88 and your computer. Try a different USB port on your computer.
- USB Cable Integrity: A faulty USB cable can cause intermittent connection issues. Try using a different, high-quality USB cable, preferably one without a ferrite coil knob if experiencing issues.
- Computer Recognition: Check your computer's device manager (Windows) or Audio MIDI Setup (macOS) to confirm that the Hammer 88 is recognized as a MIDI device.
- Power: The Hammer 88 is USB-powered. Ensure your USB port provides sufficient power. If using a USB hub, try connecting directly to the computer or using a powered USB hub.
6.3 Keys Feel Sluggish or Unresponsive
- Software Velocity Settings: Many virtual instruments and DAWs have velocity curve settings. Adjusting these settings (e.g., to a 'harder' velocity curve) can significantly alter the feel and responsiveness of the keys within the software.
- Firmware Update: Check the M-Audio website for any available firmware updates for the Hammer 88, as these can sometimes improve performance and responsiveness.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | Hammer 88 |
| Number of Keys | 88 |
| Key Type | Fully Weighted, Hammer-Action, Velocity-Sensitive |
| Connectivity Technology | USB |
| Hardware Interface | Micro USB 2.0 Type B |
| Compatible Devices | Computers (PC/Mac), MIDI-compatible equipment, iOS devices (with Apple iPad Camera Connection Kit) |
| Power Source | USB Bus-Powered |
| Color | Black |
| Material Type | Plastic |
| Item Weight | 38.5 pounds (17.46 kg) |
| Product Dimensions (L x W x H) | 56 x 11.1 x 5 inches (142.2 x 28.2 x 12.7 cm) |
| Included Software | MPC Beats, Ableton Live Lite, Eighty Eight Ensemble, AIR Music Tech’s Velvet, Mini Grand, DB33, Touch Loops |
| Controls | Pitch Bend Wheel, Modulation Wheel, Volume Control, Octave Up/Down Buttons |
| Pedal Inputs | Sustain, Expression, Soft |
8. Warranty and Support
8.1 Warranty Information
M-Audio products are covered by a limited warranty. Please refer to the separate Safety & Warranty Manual included in your package for detailed terms and conditions, including warranty period and coverage specifics. Keep your proof of purchase for warranty claims.
8.2 Technical Support
For further assistance, technical support, or to download the latest drivers and firmware, please visit the official M-Audio website. You may also find additional resources and FAQs in the comprehensive User Guide (PDF) available online.