Operation manual.
Congratulations on the purchase of your new randall model 667 amplifier! We at randall amplification appreciate that you chose the 667 amplifier and wish you years with tons of gain, great tone and enjoyable playing time. Engineered by world renowned amp guru, mike fortin, this amplifier is the resu...
! ! ! Chx: selects your channel and gainx , bright switch, and volx. Gainx: overall gain control. Bright: 3 way high frequency boost that becomes less active as gainx control is increased. Volx: channel volume control to balance output between other channels. It affects the send levels of the fx loo...
Midi programmable functions & masters:! Channel 1&2 overall voicing is american 60's era. Channels 3&4 overall voicing is 70&80's rock with a heavy dose of thick juicy midrange. Channels 5&6 overall voicing is 90's+ modern voicing with more growl, gain, and sparkle. Boost: a preset gain boost for al...
Series fx loop: this basically works as an insert patch point. The send jack plugs into the effects unit’s input jack. The return jack plugs into the effects unit’s output jack. The audio path of the amplifier is interrupted and 100% of the signal is being sent to the send jack. It must be noted tha...
Bias controls! Bias controls! This is a powerful feature and tool for exploring more tonal possibilities with the 667 amplifier. You can mix and match different tube types together for an almost unlimited range of tones. More on this later. Since there is individual bias adjustment for each tube, th...
! ! ! Tube layout! Preamp tubes left to right (with control panel facing you):! V1 12ax7 ch5/6 input! V2 12ax7 ch5/6 2nd&3rd stages! V3 12ax7 ch5/6 4th&cf stages! V4 12ax7 ch3/4 and ch1/2 input! V5 12ax7 ch3/4 2nd&3rd stages! V6 12ax7 ch3/4 4th&cf stages! V7 12ax7 ch1/2 2nd&3rd stages! V8 12ax7 loop...
For detailed product videos please visit our website at : www.Randallamplification.Com randall amplifiers is a division of u.S. Music corp.! 1000 corporate grove drive • buffalo grove, il 60089! Tel: (800) 877-6863 • fax: (847) 949-8444 randall warranty randall amplifiers, a division of u.S. Music c...
