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HQRP AC power adapter with coaster, black rectangular block, two-prong plug, round output connector

HQRP

HQRP AC Power Adapter 14V 800mA for Boss Multi-Effects plus Coaster

SKU CH-T42R-EZTNM

Replacement AC adapter delivering 14V 800mA alternating current for Boss multi-effects processors and rhythm units, includes protective coaster

  • Product typePower Cables
  • Delivers clean 14 V AC power for reliable effects processing
  • 800 mA output meets original adapter specs for compatible Boss units
  • Built-in overload and thermal cut-offs protect gear during faults
  • circuit and over-voltage safeguards prevent damage from power surges
  • Low-interference design keeps audio signal free from unwanted noise

Replacement AC adapter for Boss multi-effects

The HQRP adapter delivers 14 V AC at 800 mA from a 120 V AC mains supply, matching the original Boss BRC-120 and BRC-120T specifications. It powers a wide range of Boss processors including the GT-3, GT-6, GT-6B, GT-8, GS-10, VF-1, GX-700, DR-770, DR-880, SP-505 and JS-5 units. Built-in overload, thermal, short-circuit and over-voltage protection guard the connected device during faults. The unit is supplied new with a one-year warranty.

Included HQRP coaster

A branded coaster is bundled with the adapter, providing a small non-slip surface for the power brick or the effect unit itself. This extra item does not alter the electrical performance but helps keep the workstation tidy and protects desk surfaces from scratches or heat marks. No additional cables, software or mounting hardware are supplied beyond the adapter and the coaster.

Compact transformer with integrated safety cut-offs

The adapter uses an AC-output transformer design with automatic overload and thermal cut-offs that reset once the fault condition clears. Low-interference construction minimises mains hum in sensitive audio paths. The fixed mains lead and output cable reduce connection points, while the lightweight brick plugs directly into a wall outlet or power strip without blocking adjacent sockets. Buyers needing a DC-output supply or a different voltage for non-Boss gear should look elsewhere.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 88% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHQRP
Model name887774703271435
Product typePower Cables

Questions about this item

Will the 14V 800mA output connector need replacement after extended use?

The adapter includes automatic overload cut-off, thermal cut-off, short-circuit and over-voltage protection to reduce wear on the output connector during daily operation.

What limits continuous operation of this AC adapter?

Built-in automatic thermal cut-off activates if internal temperature rises too high, and overload cut-off stops output if current exceeds safe levels.

How much heat and noise does the adapter produce when powering a Boss GT-8 all day?

Low interference and noise design keeps audible hum minimal, while high-efficiency circuitry limits heat during sustained 14V 800mA loads.

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