Blackstar Sonnet 120 Acoustic Guitar Combo Amplifier User Manual

Introduction

This manual provides essential information for the safe and effective operation of your Blackstar Sonnet 120 Acoustic Guitar Combo Amplifier. Please read it thoroughly before use and retain it for future reference.

The Blackstar Sonnet 120 is a 120-watt acoustic amplifier designed to deliver natural, transparent sound for acoustic instruments and vocals. It features two independent channels, versatile EQ options, four studio-quality reverbs, and various connectivity options for live performance, recording, and practice.

Safety Information

• Power Supply: Connect the amplifier only to a power source matching the voltage specified on the unit. Ensure the power cable is not damaged.
• Ventilation: Do not block ventilation openings. Ensure adequate airflow around the amplifier to prevent overheating.
• Moisture: Keep the amplifier away from water or excessive moisture. Do not operate in damp conditions.
• Handling: Avoid dropping or subjecting the amplifier to strong impacts.
• Servicing: Do not attempt to service the amplifier yourself. Refer all servicing to qualified personnel.

Setup

Follow these steps to set up your Blackstar Sonnet 120 amplifier:

1. Unpacking: Carefully remove the amplifier from its packaging. Inspect for any signs of damage.
2. Placement: Place the amplifier on a stable, level surface. The integrated tilt-back stand can be used to angle the amplifier for optimal sound projection during performances.
3. Power Connection: Ensure the amplifier's power switch is in the OFF position. Connect the supplied power cable to the MAINS INPUT on the rear panel and then to a suitable electrical outlet.
4. Instrument/Microphone Connection:
   • Channel 1 (Instrument/Mic): Use a standard 1/4" instrument cable for acoustic guitars or an XLR cable for microphones. This channel features a PAD switch for high-output sources and +48V Phantom Power for condenser microphones.
   • Channel 2 (Instrument/Mic): Similar to Channel 1, offering flexibility for a second instrument or microphone.
5. External Devices:
   • MP3 / Line In: Connect external audio players via a 3.5mm stereo jack for backing tracks.
   • Bluetooth: Activate Bluetooth on your device and pair with the Sonnet 120 for wireless audio streaming.
   • USB Audio: Connect to a computer via USB for direct recording or playback.
   • XLR D.I. Output: Use XLR cables to connect to a mixing console or PA system for live sound or recording.

Front view of the Blackstar Sonnet 120 Acoustic Guitar Combo Amplifier, showcasing the speaker grille and control panel.

Diagram showing the dimensions of the Blackstar Sonnet 120 amplifier: 18.7 inches width, 14 inches depth, and 16.5 inches height.

Operating Instructions

Familiarize yourself with the controls for optimal sound shaping:

Close-up view of the Blackstar Sonnet 120 control panel, showing input jacks, EQ knobs, reverb controls, and master volume.

Channel Controls (Channels 1 & 2)

• GAIN: Adjusts the input sensitivity for the connected instrument or microphone. Set to achieve a strong signal without clipping.
• LOW, MID, HIGH: 3-band equalizer for shaping the tone of your instrument or vocal. Adjust to suit your preference and the acoustic environment.
• ANTI-FEEDBACK: Helps to reduce unwanted feedback, especially at higher volumes.
• REVERB: Controls the amount of reverb applied to the channel.

Master Section

• TYPE REVERB: Selects one of four built-in reverb types: Hall, Plate, Studio, or Chamber.
• TIME REVERB: Adjusts the decay time of the selected reverb effect.
• MASTER: Controls the overall output volume of the amplifier.
• HIGH PASS FILTER: Reduces low-frequency rumble and unwanted bass frequencies, useful for acoustic instruments.
• BRILLIANCE: Adds clarity and sparkle to the high frequencies.

Rear Panel Connections

Rear view of the Blackstar Sonnet 120, displaying the effects loops, footswitch input, MP3/Line In, XLR D.I. outputs, USB audio port, and power input.

• EFFECTS LOOP (SEND/RETURN): Allows connection of external effects pedals or processors for each channel.
• F.SWITCH: Connect an optional footswitch for remote control of certain functions (e.g., reverb on/off).
• MIX D.I. OUTPUT: Provides a balanced XLR output of the mixed signal for connection to a PA system or recording interface.
• XLR GROUND LIFT: Helps eliminate hum caused by ground loops when connecting to external equipment.

Maintenance

Proper maintenance ensures the longevity and performance of your amplifier:

• Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use abrasive cleaners or solvents.
• Storage: Store the amplifier in a dry, temperate environment away from direct sunlight and extreme temperatures.
• Transportation: When transporting, ensure the amplifier is securely packed to prevent physical damage.

Troubleshooting

If you encounter issues, refer to the following common problems and solutions:

• No Sound:
  • Check power connection and ensure the amplifier is turned on.
  • Verify instrument/microphone cables are securely connected.
  • Ensure GAIN and MASTER volume controls are not set to zero.
  • Test with different cables and instruments to isolate the problem.
• Distorted Sound:
  • Reduce the GAIN control for the input channel.
  • If using a high-output instrument, engage the PAD switch on the input channel.
  • Check for damaged cables.
• Hum or Noise:
  • Ensure all connections are secure.
  • Try engaging the XLR GROUND LIFT switch if using the D.I. output.
  • Move the amplifier away from other electronic devices that may cause interference.

If the issue persists, contact customer support.

Specifications

Warranty

The Blackstar Sonnet 120 amplifier comes with a 1-Year Limited Warranty from the date of purchase. This warranty covers manufacturing defects and faulty workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear. Please retain your proof of purchase for warranty claims.

Support

For further assistance, technical support, or warranty inquiries, please visit the official Blackstar website or contact your authorized Blackstar dealer. You can find contact information and additional resources on the Blackstar support page.

Online Resources: www.blackstaramps.com