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TOA Electronics YA-920 volume control security knob, silver metal finish

TOA ELECTRONICS

TOA ELECTRONICS studio monitor

SKU CH-QN0P-8AD6B

A volume-control security knob that locks amplifier settings against unauthorised changes

  • Restricted access prevents unauthorised volume changes
  • Fits a wide range of TOA amplifiers and mixer/amplifiers
  • Robust cover shields controls from tampering and accidental damage
  • Protects pre-set volume levels from dust and debris
  • Backed by a 5-year limited warranty for lasting confidence

TOA YA-920 volume security knob

The TOA Electronics YA-920 is a protective security knob designed for compatible amplifiers and mixer-amplifiers. It restricts unauthorised volume adjustments while shielding the control from dust and accidental damage. Professional audio installers and venue operators use it to lock in calibrated sound levels.

Tamper-resistant cover for daily operation

The knob fits over the existing volume control on supported TOA amplifiers, creating a physical barrier that prevents casual tampering. Its durable construction withstands regular handling in installed sound systems, keeping the underlying potentiometer clean and functional. Authorised personnel can still adjust levels when the cover is removed.

Five-year limited warranty included

TOA Electronics backs the YA-920 with a five-year limited warranty, covering defects in materials and workmanship. This long-term guarantee reflects the accessory's role in protecting the amplifier's front-panel controls over the life of the installation. No additional software or configuration is required.

How it compares

Measured against everything we stock in Studio Monitor Speakers, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 99% of the 77 comparable items (median $144.99).

Specifications

No published specifications for this item yet.

Questions about this item

What amplifiers does the YA-920 security knob fit?

It is designed for TOA Electronics amplifiers and mixer/amplifiers that use a compatible volume control shaft.

What physical clearance does the knob need to mount?

The cover slides over the existing volume control knob and requires enough surrounding space for the protective housing to sit flush.

How is the YA-920 installed and what step is often missed?

Place the security cover over the volume knob, then secure it with the included locking screw so the volume setting cannot be changed without the tool.

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