Classic STAX electret system: SR-30 Professional earspeakers (Pro version introduced 1989) with the matching SRD-4 adaptor (model introduced 1975), made in Japan. The SRD-4 connects to the speaker outputs of any power amplifier (input cable with bare ends), and passes your speakers through via its rear terminals. The front switch selects Loudspeaker or Earspeaker.

  • Both channels working perfectly, tested.
  • Earpads show age (cracked faux leather). Replacement pads are available, and the drivers are unaffected.
  • Original headphone cable.
  • No original box.

Electret: no bias supply needed, just a power amplifier.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

Promoted similar listings













Listed11 hours ago
ConditionGood (Used)
Good condition items function properly but may exhibit some wear and tear.Learn more
Brand
Model
  • SR-30 Professional Electret Earspeakers + SRD-4 Adaptor (SR-34 system)
Categories
Year
  • 1989
Made In
  • Japan

Product safety information may be available here.

Vangelis's Gear Outlet

Heraklion, Greece
Joined Reverb:2023

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Oops, looks like you forgot something. Please check the fields highlighted in red.