Leasing Options Available
100% Secure Online Shopping Guaranteed

Kramer Kramer TR-91 Audio Transformer

Product Code: TR-91
Condition: New
  • £279.00
  • (£334.80 inc. VAT)
  • RRP £279.00
Item in Stock | Usually dispatched within 24 hours
Price Promise Shop with us and save now!
Leasing Options Available Click here to find out more ›
100% Secure Shopping We try to beat any UK store
Free UK Delivery Order before 3pm for next day delivery

The TR-91 is a 100W transformer for speaker signals. The unit takes one 4Ω/8Ω channel from a speaker output of a power amplifier, transforms it to 70/100V and distributes it to an array of loudspeakers.

  • Bandwidth  - 18kHz (−3dB).
  • Max. Power  - 100 watts.
  • Passive Device  - No power required.
  • Desktop Size  - Compact size. 2 units can be rack mounted side−by−side in a 1U rack space with an optional RK−1 rack adapter.


  • Array installations
  • Conference rooms
  • Educational classrooms
  • Presentation venues
  • Training rooms
  • Hotel lobbies
  • INPUT: 1 low−impedance (4Ω/8Ω) speaker input on a terminal block connector.
  • OUTPUT: 1 high−impedance speaker on a terminal block connector.
  • MAX POWER: 100W.
  • VOLTAGE GAIN: 7.4dB/10.5dB (70V/100V).
  • BANDWIDTH (-3DB): 18kHz.
  • OPERATING TEMPERATURE: 0° to +40°C (32° to 104°F).
  • STORAGE TEMPERATURE: −10° to +60°C (14° to 140°F).
  • HUMIDITY: 10% to 90%, RHL non−condensing.
  • PRODUCT DIMENSIONS: 21.46cm x 16.30cm x 4.36cm (8.45" x 6.42" x 1.72" ) W, D, H
  • PRODUCT WEIGHT: 1.6kg (3.5lbs) approx.
  • SHIPPING DIMENSIONS: 35.10cm x 21.20cm x 7.20cm (13.82" x 8.35" x 2.83" ) W, D, H
  • SHIPPING WEIGHT: 2.1kg (4.6lbs) approx.
  • OPTIONS: RK−1 19” rack adapter.
Be the first to review Kramer TR-91 Audio Transformer. Write a review