1. Introduction
Thank you for choosing the Soldano SLO-MINI 30W Guitar Amp Head. This compact amplifier head delivers the renowned Soldano tone in a portable package. This manual provides essential information for the safe and effective use of your amplifier, including setup, operation, maintenance, and troubleshooting.
2. Safety Information
Please read and understand all safety instructions before operating this product. Retain this manual for future reference.
- Electrical Safety: Always connect the amplifier to a grounded power outlet. Do not expose the unit to rain or moisture. Disconnect the power cord before cleaning or servicing.
- Ventilation: Ensure adequate ventilation around the amplifier. Do not block ventilation openings.
- Speaker Connection: Always connect the amplifier to a suitable speaker cabinet with the correct impedance before powering on. Operating without a speaker load can damage the amplifier.
- Hearing Protection: This amplifier can produce high sound pressure levels. Prolonged exposure to high volume can cause permanent hearing damage. Use appropriate hearing protection.
- Servicing: Refer all servicing to qualified service personnel. Do not attempt to service this product yourself.
3. Package Contents
Verify that all items are present in the package:
- Soldano SLO-MINI 30W Guitar Amp Head
- Power Cord
- User Manual (this document)
4. Product Overview
4.1 Front Panel Controls

This image displays the front panel of the Soldano SLO-MINI amplifier head. Visible controls include the Power switch, Normal/Deep voicing switch, Master, Presence, Treble, Middle, Bass, and Gain knobs, a Crunch/Overdrive switch, and the 1/4-inch input jack. The 'Soldano' logo is prominently featured on the grille.
- POWER Switch: Toggles the amplifier's power on or off.
- NORMAL/DEEP Switch: Selects between Normal voicing for a standard response or Deep voicing for enhanced low-end frequencies.
- MASTER Knob: Controls the overall output volume of the amplifier.
- PRESENCE Knob: Adjusts the high-frequency response, adding clarity and sparkle.
- TREBLE Knob: Controls the high-frequency equalization.
- MIDDLE Knob: Controls the mid-range frequency equalization.
- BASS Knob: Controls the low-frequency equalization.
- GAIN Knob: Adjusts the amount of pre-amp gain, affecting the level of overdrive and distortion.
- CRUNCH/OVERDRIVE Switch: Selects between Crunch mode for a classic rock tone or Overdrive mode for higher gain and saturation.
- INPUT Jack: 1/4-inch input for connecting your guitar.
4.2 Rear Panel Connections
The rear panel typically includes:
- Speaker Output: Connects to your speaker cabinet. Ensure correct impedance matching.
- Effects Loop (Send/Return): For connecting external effects pedals.
- AC Power Input: For connecting the provided power cord.
5. Setup
Follow these steps to set up your Soldano SLO-MINI amplifier:
- Connect Speaker Cabinet: Using a high-quality speaker cable, connect the speaker output of the SLO-MINI to your speaker cabinet. Verify that the speaker cabinet's impedance matches the amplifier's output impedance.
- Connect Power: Ensure the POWER switch on the front panel is in the 'OFF' position. Connect the provided power cord to the AC Power Input on the rear panel and then to a grounded electrical outlet.
- Connect Guitar: Plug your guitar into the INPUT jack on the front panel using a standard 1/4-inch instrument cable.
- Initial Settings: Set all tone knobs (Treble, Middle, Bass, Presence) to the 12 o'clock position. Set the GAIN and MASTER knobs to their minimum (0) position.
6. Operating Instructions
Once set up, you can begin operating your amplifier:
- Power On: Flip the POWER switch to the 'ON' position. The indicator light will illuminate.
- Adjust Gain: Slowly increase the GAIN knob to achieve your desired level of pre-amp distortion.
- Adjust Master Volume: Gradually increase the MASTER knob to reach your desired overall volume level.
- Tone Shaping: Use the TREBLE, MIDDLE, and BASS knobs to sculpt your tone. The PRESENCE knob can add brightness and cut.
- Voicing Options: Experiment with the NORMAL/DEEP switch to alter the low-end response. The CRUNCH/OVERDRIVE switch allows you to select between two distinct gain stages.
- Effects Loop: If using external effects, connect them to the SEND and RETURN jacks on the rear panel.
- Power Off: Before powering off, turn the MASTER volume down. Then, flip the POWER switch to the 'OFF' position.
7. Maintenance
Proper maintenance ensures the longevity and performance of your amplifier:
- Cleaning: Disconnect power before cleaning. Use a soft, dry cloth to wipe down the exterior. Avoid abrasive cleaners or solvents.
- Storage: Store the amplifier in a dry, temperature-controlled environment, away from direct sunlight and extreme temperatures.
- Transportation: When transporting, ensure the amplifier is securely packed to prevent physical damage.
8. Troubleshooting
If you encounter issues, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Power not connected; Speaker not connected; Guitar cable faulty; Volume knobs at zero. | Check power and speaker connections; Test guitar cable; Increase MASTER and GAIN knobs. |
| Distorted or weak sound | Incorrect speaker impedance; Faulty cables; Effects loop issue. | Verify speaker impedance; Test all cables; Bypass effects loop to isolate issue. |
| Excessive hum or noise | Ground loop; Faulty power supply; Proximity to other electronics. | Ensure proper grounding; Try a different power outlet; Move amplifier away from other electronic devices. |
If the problem persists after attempting these solutions, please contact Soldano customer support.
9. Specifications
- Model: SLO Mini
- Output Wattage: 30 Watts
- Item Weight: 5.77 pounds
- Product Dimensions: 12.95 x 7.8 x 7.4 inches
- Compatible Devices: Guitar
- Connector Type: 6.35mm Jack
- Material Type: Aluminum or high-quality plastic
- Power Source: Corded Electric
10. Warranty Information
Soldano products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Soldano website. Keep your proof of purchase for warranty claims.
11. Support
For technical assistance, service, or further information regarding your Soldano SLO-MINI 30W Guitar Amp Head, please contact Soldano customer support through their official website or authorized dealers. Contact information can typically be found on the manufacturer's website.





