Aiken Amplification Invader User Manual

InvaderUser's ManualAiken Amplification1225 Montague AvenueGreenwood, SC 29646Tel: 864-993-8383http://www.aikenamps.com

Tube layout and replacementThe Invader uses four ECC83/12AX7 tubes, one ECC81/12AT7 tube, and two 6BQ5/EL84 output tubes (four EL84s in the 30W versio

BiasingBiasing is very easy, and doesn't require removing the chassis from the cabinet. You simply use a voltmeter (any inexpensive digital mult

SpeakersChanging speakers is like getting a whole new amp. Every model sounds completely different, some sounding quite good and some amazingly bad.

TroubleshootingPilot lamp not lit: Is the amplifier plugged into a functional outlet of the appropriate voltage? Is the mains fuse blown? If so, re

Humming or buzzing noise: Unplug the guitar cord from the input and unplug any cable used for jumpering the two inputs. If the buzzing stops, try rep

Ringing noise or feedback that occurs with no guitar plugged in: If the amplifier exhibits a "ringing" noise, especially when tapping on th

SpecificationsOutput Power:Input Impedance:Input sensitivity:Tube complement:Fuses:Speakers:Footswitch:Speaker Emulator/XLR out:Dimensions:Weight:18W

Contents Contents...2 Getting Started...

Getting StartedCongratulations on purchasing your new Aiken Invader amplifier!The Invader is an all-tube amplifier, available in

 Massive, custom-wound, high-interleave transformers, rated for over twice the maximum amplifier output power, allowing the amplifier to be run full

Front Panel Controls and SwitchesInput jacks:Channel 1 is voiced bright, channel 2 is voiced much darker. The upper inputs are higher gain than the l

Bass:The bass control adjusts the low frequency equalization.Dwell:The dwell control adjusts the drive to the reverb tank. Higher dwell levels resul

Pilot lamp:The pilot lamp lights when power is applied to the amplifier and the power switch is on.Standby switch:The standby switch allows muting of

Rear Panel Controls and SwitchesAC Mains:Plug the supplied IEC mains cord into this outlet to provide power to the amplifier.Mains Fuse:18W amplifiers

speaker emulator usually sounds best at louder settings on the attenuator, because of the interaction between the speaker and the amplifier, which res