Introduction
Welcome to the user manual for your STRICH SDP-300S Digital Piano. This instrument combines the authentic feel of a grand piano with modern digital features, offering a rich musical experience. Designed for both beginners and experienced players, the SDP-300S features 88 hammer-action weighted keys, powerful 25W x 2 speakers, and versatile connectivity options including USB-MIDI and wireless capabilities.
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your digital piano to ensure optimal performance and enjoyment.
1. Setup
1.1 Unpacking and Assembly
Carefully remove all components from the packaging. Ensure all parts are present: the digital piano unit, stand components, three-pedal unit, power adapter, and headphones. Follow the assembly instructions provided in the separate quick start guide to construct the stand and attach the piano unit. Assembly is designed to be straightforward.

The STRICH SDP-300S digital piano comes with a sturdy stand, a three-pedal unit, and headphones for silent practice. Assembly is straightforward.
1.2 Power Connection
Connect the provided power adapter to the DC 12V input port on the rear panel of the piano. Plug the adapter into a standard electrical outlet. The adapter specifications are: Input AC: 100V-240V, Output DC: 12V 3A, Adapter Transformer DC: 5.5mm x 2.2mm.
1.3 Pedal Unit Connection
Connect the cable from the three-pedal unit to the 'PEDAL' port on the rear panel of the piano. Ensure the connection is secure.
1.4 Initial Power On
Locate the 'ON/OFF' button on the rear panel. Press it to power on the digital piano. The display will illuminate, indicating the piano is ready for use.

The rear panel provides essential connection ports including power input, USB-MIDI, MIDI output, audio input, headphone jack, and the dedicated pedal unit port.
2. Operating Instructions
2.1 Basic Controls
- Power On/Off: Use the 'ON/OFF' button on the rear panel.
- Volume Adjustment: Use the dedicated volume knob or buttons to adjust the overall sound output.
2.2 Sound Selection (Timbres)
The SDP-300S offers 900 preset timbres (instrument sounds). Use the navigation buttons (e.g., '+' and '-') to browse through the available sounds. The maximum polyphony is 128 notes, allowing for complex musical passages without notes cutting off.

The digital piano offers a wide range of musical possibilities with 900 distinct sounds, 700 drum rhythms for accompaniment, 110 built-in demo songs for learning, and two auto-chord modes to assist with chord progression.
2.3 Rhythm and Accompaniment
Select from 700 drum rhythms to add accompaniment to your playing. The intelligent auto chord function provides harmonic support, enhancing your musical expression.
2.4 Special Functions
Explore various functions to customize your sound:
- Chorus Effects: Add depth and richness to the sound.
- Layer/Split: Play two different sounds simultaneously (Layer) or assign different sounds to different sections of the keyboard (Split).
- Octave Shift: Adjust the pitch of the keyboard in octave increments.
- Transpose: Change the key of the piano without altering your finger positions.
2.5 Connectivity
- USB-MIDI: Connect the piano to a computer or other MIDI-compatible devices using a USB cable for recording, sequencing, or using music software.
- Wireless Connection (Bluetooth): Pair your digital piano with a smartphone or tablet via Bluetooth for use with teaching apps or for playing along with external audio.
- Audio-in Port: Connect external audio sources (e.g., MP3 player, smartphone) to the Audio-in port to play music through the piano's speakers, allowing you to play along.
- Headphone Output: For silent practice, connect headphones to the 6.35mm headphone jack.

The piano supports headphone output, allowing for silent practice without disturbing others. Simply connect headphones to the dedicated jack.

The piano supports wireless connectivity and a 6.35mm wiring port for external audio input, enabling users to play along with background music from devices like laptops or smartphones.
2.6 Learning Features
- Built-in Demos: Utilize the 110 built-in demo songs for listening pleasure or as learning aids.
- Dual-Keyboard Mode: This mode allows two players to play simultaneously on the same keyboard, ideal for teacher-student lessons.
- STRICH Teaching App: Connect wirelessly to the STRICH Teaching App on your iPad or phone for self-study, composition, or guided lessons.
2.7 Key Action and Touch Response
The 88 fully-weighted, full-size keys feature hammer action and simulated ivory texture, replicating the feel of an acoustic grand piano. The adjustable touch response allows you to customize the sensitivity of the keys to your playing style.

The 88 fully-weighted keys feature hammer action and simulated ivory texture, providing a realistic grand piano feel with adjustable touch response for dynamic playing.
3. Maintenance
3.1 Cleaning
To clean the piano's surface, use a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water and a mild soap solution, then wipe dry immediately. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish. Clean the keys with a soft, damp cloth, wiping from the back of the key towards the front.
3.2 Storage
Store the digital piano in a location free from extreme temperatures, direct sunlight, and high humidity. Avoid placing heavy objects on the keyboard or stand. If storing for an extended period, cover the piano with a dust cover to protect it from dust and debris.
4. Troubleshooting
Common Issues and Solutions
- No Power: Ensure the power adapter is securely connected to both the piano and a working electrical outlet. Verify the 'ON/OFF' button is pressed.
- No Sound: Check the master volume level. If headphones are connected, disconnect them to check speaker output. Ensure external audio devices are properly connected and their volume is up.
- Keys Not Responding: Ensure the piano is powered on. If specific keys are unresponsive, contact customer support.
- Pedal Not Working: Verify the pedal unit cable is securely plugged into the 'PEDAL' port on the rear panel.
- Connectivity Issues (USB-MIDI/Wireless): For USB-MIDI, ensure the correct drivers are installed on your computer (if required) and the connection is secure. For wireless, ensure Bluetooth is enabled on your device and the piano is in pairing mode.
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please refer to the Customer Support section for further assistance.
5. Specifications
| Feature | Specification |
|---|---|
| Brand | STRICH |
| Model Name | SDP-300S |
| Number of Keys | 88 |
| Key Type | Hammer Action, Weighted, Simulated Ivory Texture |
| Polyphony | 128 (max) |
| Timbres (Sounds) | 900 preset |
| Rhythms | 700 drum rhythms |
| Demo Songs | 110 beginner demos |
| Speakers | 25W x 2 |
| Connectivity | USB-MIDI, Wireless (Bluetooth), 6.35mm Audio-in, 6.35mm Headphone Jack |
| Power Source | Corded Electric (Input AC:100V-240V, Output DC:12V 3A) |
| Product Dimensions | 12.4"D x 51.2"W x 29.2"H (31.5cm D x 130cm W x 74.2cm H) |
| Item Weight | 45.9 pounds (20.84 Kilograms) |
| Body Material | Walnut Wood |
| Supported Software | STRICH Teaching App |
| Special Features | Built-In Speaker, Hammer Action, Headphone Jack, Multiple Voices, Smart Chord |
6. Warranty and Support
6.1 Warranty Information
Your STRICH SDP-300S Digital Piano is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your product for specific terms, conditions, and duration. Keep your proof of purchase for warranty claims.
6.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact STRICH customer support. Contact information can typically be found on the STRICH official website or on the product packaging. Please have your model number (SDP-300S) and purchase date ready when contacting support.






