Introduction
Thank you for choosing the Stageline KB51 Keyboard Bench. This manual provides essential information for the safe and proper setup, operation, and maintenance of your new keyboard bench. Please read these instructions carefully before use and retain them for future reference.
The Stageline KB51 is an X-type keyboard bench designed for comfort and stability. It features a heavily padded seat and four adjustable height levels to accommodate various users and playing styles.
Safety Information
WARNING: Failure to follow these safety instructions may result in injury or damage to the product.
- Do not exceed the maximum weight recommendation of 300 pounds (approximately 136 kg).
- Ensure the bench is properly assembled and all adjustment mechanisms are securely locked before each use.
- Place the bench on a flat, stable, and non-slip surface to prevent tipping.
- Keep fingers and clothing clear of moving parts during assembly and height adjustment.
- This product is intended for seating purposes only. Do not stand on the bench or use it as a step stool.
Setup Instructions
The Stageline KB51 Keyboard Bench is designed for easy setup. Follow these steps to prepare your bench for use:
- Unpack Components: Carefully remove all parts from the packaging. Verify that all components are present: the padded seat and the X-style frame.
- Unfold the Frame: Gently pull the two sides of the X-frame apart until the cross-braces are fully extended.
- Attach the Seat: Align the mounting holes on the underside of the padded seat with the attachment points on the top of the X-frame. Secure the seat using the provided screws or locking pins, ensuring they are tightened firmly.
- Adjust Height: Refer to the "Operating Instructions" section for details on adjusting the bench to your desired height.
- Stability Check: Before sitting, gently press down on the seat and rock it slightly to ensure it is stable and all connections are secure.

Figure 1: Fully assembled Stageline KB51 Keyboard Bench. This image displays the black padded seat atop the black X-shaped frame, highlighting the sturdy construction and the visible height adjustment knob on the side.
Operating Instructions
The Stageline KB51 Keyboard Bench offers four adjustable height levels for personalized comfort.
- Locate Adjustment Knob: Identify the circular adjustment knob located on the side of the X-frame, typically near the pivot point.
- Release Lock: Unscrew or pull the adjustment knob to release the locking pin from its current height setting.
- Adjust Height: While holding the knob, carefully raise or lower the bench to the desired height. The X-frame will expand or contract.
- Secure Lock: Once the desired height is reached, ensure the locking pin engages fully into one of the four pre-drilled holes on the frame. Tighten the adjustment knob securely to prevent accidental movement.
- Verify Stability: Before sitting, confirm that the bench is stable and does not wobble.
The adjustable height range is approximately 20.875 inches to 26 inches (53 cm to 66 cm).
Maintenance
Proper care will extend the life and appearance of your Stageline KB51 Keyboard Bench.
- Cleaning: Wipe the padded seat and metal frame with a dry, soft cloth. For stubborn marks on the frame, a slightly damp cloth can be used, followed immediately by a dry cloth. Avoid abrasive cleaners or solvents, as these can damage the finish.
- Inspection: Periodically inspect all screws, bolts, and adjustment mechanisms to ensure they are tight and functioning correctly. Tighten any loose fasteners.
- Storage: When not in use for extended periods, store the bench in a dry environment, away from extreme temperatures and direct sunlight. The bench can be folded for more compact storage.
Troubleshooting
If you encounter issues with your Stageline KB51 Keyboard Bench, consider the following:
- Bench is Unstable/Wobbles:
- Ensure the bench is placed on a flat, even surface.
- Verify that the height adjustment locking pin is fully engaged and the knob is securely tightened.
- Check all assembly screws (if applicable) to ensure they are tight.
- Difficulty Adjusting Height:
- Ensure the adjustment knob is fully loosened before attempting to change height.
- Check for any obstructions in the adjustment holes or mechanism.
If problems persist, please contact Stageline customer support.
Specifications
| Feature | Detail |
|---|---|
| Model | KB51 |
| Type | X-type Keyboard Bench |
| Seat Dimensions | 12.5 inches x 23.75 inches (approximately 31.75 cm x 60.3 cm) |
| Adjustable Height Range | 20.875 inches - 26 inches (approximately 53 cm - 66 cm) |
| Product Dimensions (Overall) | 33.3"D x 13.9"W x 6.9"H (folded/packaged) |
| Color | Black |
| Weight | 1 pound (approximately 0.45 kg) |
| Maximum Weight Capacity | 300 pounds (approximately 136 kg) |
| Care Instructions | Wipe with Dry Cloth |
Warranty and Support
For warranty information or technical support regarding your Stageline KB51 Keyboard Bench, please contact Stageline customer service. Details can typically be found on the manufacturer's official website or product packaging.
Please have your model number (KB51) and purchase date available when contacting support.







