amiller":f203f said:
I have 4 amp heads that I want to put into some type of rack and then run the outputs from these amps to two 4X12 cab. To keep things straight, let's call one cab "A" and the other "B." I only plan on running ONE amp at a time but I want to be able to switch between the 4 heads to both cab "A" and "B." Each amp has two speaker out jacks and I would like to send one out to speaker cab "A" and the other to speaker cab "B."
How do I accompolish this?
You could do it with one of these:
The Cabbone is a guitar amplifier cabinet switcher that connects between an amp head and two cabinets to allow the guitarist to transition between say a Fender 2x12” open back to a Marshall 4x12” slant while using the same amplifier head.
Cabbone uses high-performance, high-cycling, gold contact relays to switch the amp's speaker output to either cabinet without adding color to the tone. To ensure safe, stable amplifier operation and smooth transitions, switching is controlled by a timer IC that manages a ramped connection overlap. This ensures a constant load on the output, a major concern with tube amplifiers. As a further safety measure, the Cabbone incorporates a power-off feature called SafeMode™ which automatically diverts the input signal to output-1 if the power supply is ever disconnected or turned off by mistake.
AND... one of these:
Imagine having a multiple amplifier system with each amp having its own sonic character. Perhaps one set clean, another for a slight amount of crunch, then maybe one for heavy rhythms, then one with your favorite high gain solo sound. They could all be different, even from different manufacturers. Let's take this a step further. How about safely switching these amps into the same cabinet? And how about a line out from each amp to drive effects? You can have all that and more with the Amp Selector v.1 from Custom Audio Electronics, Inc.
Features:
• Safely and silently switch up to 4 amplifiers into the same cabinet or load device!
• Unique priority circuit only allows 1 amp on at a time!
• Protection circuitry safely guards unselected amps.
• Provides multiple line level outputs with a level control for each amp to drive effects and power amps.
• Front panel LED's indicate status of each amp.
• Super low noise buffer circuit provides impedance matching and eliminates passive instrument input.
• Remote controlled from simple latching footswitches or controlled by a wide variety of MIDI system controllers utilizing latching footswitch type functions.
• Remote power supply for lowest noise.
• 2 auxiliary line outputs. Useful for mixing external preamps with the selected amp.
• Line level volume loop can be used to remote control line level volume or for patching in noise reduction units, effects, etc.
Benefits:
• Sonically transparent passive switching elements provide unsurpassed clarity while uniquely switching up to four amplifiers (one at a time) into a common speaker system or load device.
• Easily allows for the popular system configuration of a center dry cabinet with stereo effects cabinets (a stereo power amp and effects would be required). See diagram.
• Provides a line out for each amp regardless type. No need to modify amps for line outs and effects loops. Even non-master volume amps work fine!!
• Eliminates the need for multiple speaker cabinets and/or load devices when using multiple amps.
• No elaborate switching system required. Simple latching footswitches are all that are needed to control status of amps.
