Morley ABY-G Signal Splitter / Switcher - Passive ABY Box with Ground Lift

The Morley ABY-G is a passive ABY switcher and combiner designed for musicians who need to route a single instrument signal to two amplifiers or combine two signals into one. Built with a rugged cold-rolled steel housing, this pedal offers true bypass operation, ensuring zero signal degradation when not in use. The ABY-G features two footswitches for selecting output A, B, or both (A+B combine mode), along with a ground lift switch to eliminate hum and noise caused by ground loops. LED indicators clearly show which outputs are active. The unit can be powered by a 9V battery or an optional 9V DC power supply (center negative) for the LEDs only; the audio path remains passive and requires no power.

Advantages

Passive design ensures pure, uncolored signal path with no need for external power for audio. True bypass preserves your tone when the pedal is off. Ground lift switch effectively eliminates ground loop hum in multi-amp setups. Compact and durable steel chassis withstands the rigors of stage and studio use. LED indicators provide clear visual feedback of active outputs.

Suitable for

• Guitarists and bassists using multiple amplifiers
• Switching between two amps during a performance
• Combining two instrument signals into one input
• Studio setups requiring clean signal routing
• Keyboard players needing to send signal to two destinations

Key specifications

• Product Type: ABY Switcher/Combiner
• Signal Path: Passive
• Input Connectors: 1 x 1/4" TS Instrument
• Output Connectors: 2 x 1/4" TS Instrument (A, B)
• Switching Modes: A, B, A+B (Combine)
• Bypass Type: True Bypass
• Ground Lift Switch: Yes
• LED Indicators: Yes (for A and B)
• Power Requirement (for LEDs): 9V DC (center negative) or 9V Battery
• Current Draw (for LEDs): ~10mA
• Housing Material: Cold-rolled steel
• Controls: A/B Footswitch, A+B Footswitch, Ground Lift Switch
• Application: Guitar, Bass, Keyboards, Line-level signals
• Frequency Response: Full Range (20Hz-20kHz)
• Power Supply Included: No

Recommendations

For optimal performance, use high-quality shielded instrument cables. If using the LED feature, we recommend a 9V DC power supply with center negative polarity (not included). The ground lift switch can be engaged to eliminate hum; experiment with both positions to find the quietest setup.