Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your Stagg BM370-MRD 4-String "M" Style Electric Bass Guitar. Please read this manual thoroughly before using your instrument to ensure optimal performance and longevity.
The Stagg BM370-MRD is a 4-string electric bass guitar featuring a solid alder body, hard maple bolt-on neck, and vintage maple fingerboard. It is equipped with two bass humbucker pickups and a control layout of two volume knobs and one tone knob.
Product Overview

Figure 1: Stagg BM370-MRD 4-String Electric Bass Guitar, Metallic Red finish. The image displays the full bass guitar, highlighting its red body, white pearloid pickguard, two black humbucker pickups, chrome bridge, and maple neck with a matching headstock and four tuning machines.
Key Components:
- Headstock: Contains the tuning machines for adjusting string tension and pitch.
- Nut: A small piece at the top of the neck that guides the strings.
- Neck: The long wooden part of the guitar where the frets and fingerboard are located.
- Fingerboard (Fretboard): The surface of the neck where fingers press down on strings.
- Frets: Metal strips embedded in the fingerboard that define specific notes.
- Pickups: Electromagnetic devices that convert string vibrations into electrical signals. This model features two Bass Humbucker pickups.
- Controls: Knobs for adjusting volume and tone. This model has two volume controls and one master tone control.
- Bridge: Anchors the strings at the body end and allows for intonation adjustments.
- Body: The main resonant part of the guitar, made of solid Alder.
- Output Jack: Where the instrument cable connects to an amplifier.
Setup
1. Unpacking and Inspection:
Carefully remove the bass guitar from its packaging. Inspect the instrument for any signs of damage that may have occurred during shipping. Retain all packaging materials in case the instrument needs to be transported or returned.
2. Tuning:
The Stagg BM370-MRD is a 4-string bass guitar. The standard tuning for a 4-string bass from thickest to thinnest string is E-A-D-G. Use an electronic tuner for accurate tuning. Turn the tuning machines slowly to bring each string to the correct pitch.
3. Connecting to an Amplifier:
- Ensure your amplifier is turned off and its volume is set to minimum.
- Connect one end of a standard 1/4-inch instrument cable to the output jack on your bass guitar.
- Connect the other end of the cable to the input jack on your bass amplifier.
- Turn on your amplifier and slowly increase the volume to a desired level.
Operating
1. Volume Controls:
The Stagg BM370-MRD features two volume knobs, one for each humbucker pickup. Turning a volume knob clockwise increases the output of its corresponding pickup, while turning it counter-clockwise decreases it. You can blend the two pickups by adjusting their individual volume levels.
2. Tone Control:
The single tone knob allows you to adjust the overall tonal characteristics of the bass. Turning the tone knob clockwise will brighten the sound, emphasizing higher frequencies. Turning it counter-clockwise will darken the sound, rolling off high frequencies.
3. Playing Techniques:
Experiment with different playing techniques such as fingerstyle, picking, and slapping to explore the versatile sounds of your bass guitar. Adjust the volume and tone controls to suit your musical style and desired sound.
Maintenance
1. Cleaning:
- After each use, wipe down the strings, fingerboard, and body with a clean, soft cloth to remove sweat, oils, and dust.
- For the body, a guitar-specific polish can be used sparingly to maintain its finish. Avoid abrasive cleaners.
- Clean the fingerboard periodically with a suitable fretboard cleaner and conditioner, especially if it appears dry.
2. String Replacement:
Strings should be replaced regularly, depending on usage, as they lose their brightness and intonation over time. Replace one string at a time to maintain neck tension. Use 4-string bass guitar strings of appropriate gauge.
3. Storage:
Store your bass guitar in a stable environment, away from extreme temperature changes and humidity fluctuations. A guitar case or gig bag provides protection from dust and physical damage.
4. Professional Setup:
For optimal playability and intonation, it is recommended to have your bass guitar professionally set up periodically by a qualified technician. This includes adjusting neck relief, string action, and pickup height.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from amplifier |
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| Buzzing or humming noise |
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| Strings buzzing against frets |
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Specifications
| Feature | Description |
|---|---|
| Model | BM370-MRD |
| Body Material | Solid Alder |
| Neck Material | Hard Maple, bolt-on |
| Fingerboard Material | Vintage Maple |
| Number of Strings | 4 |
| Pickups | 2 x Bass Humbucker |
| Controls | 2 x Volume, 1 x Tone |
| Bridge System | Fixed |
| Color | Metallic Red |
| Item Weight | 12 pounds (approx. 5.44 kg) |
| Product Dimensions | 48.5 x 3.5 x 16.5 inches (approx. 123.2 x 8.9 x 41.9 cm) |
| UPC | 882030150272 |
Warranty Information
Stagg products are designed for durability and performance. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Stagg website. Keep your proof of purchase for any warranty claims.
Customer Support
If you encounter any issues not covered in this manual or require further assistance, please contact Stagg customer support. You can find contact information on the official Stagg website or through your authorized dealer.
For more information, visit the Stagg Store on Amazon.





