$749.00 MSRP inc.GST

Redback – K 5165 – KIT AMP STEREO 2 X135W CLASS AB

(Silicon Chip Magazine Mar-May ‘12) A stunning low distortion, high power stereo amplifier designed for superb performance in any 2 channel audio system. It delivers 135W RMS per channel into 8 ohms (or 200W RMS into 4 ohms). It utilises two of the K 5154 Mk. 3 amplifier module kits, plus power supply board, toroid, speaker protector kit, input and pre-amp boards – all supplied in a stylish 2RU all metal chassis. Silicon Chip have vastly improved the performance of the amplifier modules over the Mk. 2 edition. It features less than half as much distortion at frequencies of 2kHz or above. It also boasts much improved thermal stability & flatter frequency response. Produces incredibly low levels of distortion even at high power outputs. The class AB design runs much cooler than genuine class A amps, without sacrificing performance. 

Important Note For Kit Buyers: 
This product is supplied in component form and requires soldering, drilling, and assembly. We recommend users are familiar with at least basic electronic principles and have the ability to solder.


  • Professional quality screened front and rear panels
  • Class A-B design with a very low 0.0006% distortion
  • 135 Watts RMS per channel (8Ω)
  • Passive Heatsink cooling for silent operation
  • Heavy duty speaker terminals
  • Speaker protection
  • Case CNC machined and punched for accuracy and finish
  • Tough texture powdercoated chassis
  • Three RCA line inputs
  • Desk or rack mountable with included rack ears and handles
  • LED power meters
  • Toroidal transformer for reliability and performance
  • Internal spade and RCA connections, no need to solder wires
  • AC and DC fuse protection

Why buy an Altronics Kit?
Altronics kits are premium do-it-yourself projects designed to be assembled with ease. However, basic electronics knowledge and soldering skills are essential to construct our kits. A difficulty rating is provided to help determine if your ability is sufficient to build the kit project. Please note, once assembly has been commenced we are unable to honor any warranty claims. Please see the full details here.