I recently built the AutoTuba by billfitzmaurice for automotive application(of course) and I have been having trouble finding a suitable amplifier for it.
What I'm looking for
100watts RMS into 4 ohms. Variable LP filter(the higher order the better, but anything greater than 12db/octave will suffice) and perhaps a subsonic filter @20hz or so....
The most important thing is that it will do 100watts RMS into 4 ohms... and I'm looking for something cheap <$80.
Any suggestions are greatly appreciated
Thanks guys
What I'm looking for
100watts RMS into 4 ohms. Variable LP filter(the higher order the better, but anything greater than 12db/octave will suffice) and perhaps a subsonic filter @20hz or so....
The most important thing is that it will do 100watts RMS into 4 ohms... and I'm looking for something cheap <$80.
Any suggestions are greatly appreciated
Thanks guys
I like the Alpine V12 amps. 30w x2 will do bridged at least 75 watts and its clean. Find a used one on ebay or something.
I am interested in the autotuba; can you give more details. I won't be able to build one in my single cab taco, but I would like to know how it works out for you for future reference.
I am interested in the autotuba; can you give more details. I won't be able to build one in my single cab taco, but I would like to know how it works out for you for future reference.
that seems like asking alot for <$80, higher then12db/oct and variable... A mtx 282 might be ok, cant remember if its variable or not. most of the lower levels of equipment is fixed 12db/octave often at ~80Hz
The autotuba is an 8" hornloaded design. Billfitzmaurice came up with it and plans are available for $9.95 US at his website www.billfitzmaurice.com
The horn increases efficiency by acoustically coupling the driver to the surrounding air. On average it runs 10db hotter than a sealed enclosure(according to bill's measurements).
It only has somewhere around 100watts RMS power handling which makes it an easy add on for a car stereo requiring no modification of the electrical system
Come on guys... even pyramid sells cheap amps with variable filters on them..... I said 12db/octave would suffice but PREFERRABLY better.... I just wanted to find something that could be Bridged into 100watts RMS or is Mono into 100watts RMS.... I didnt want to have to buy a 2 channel amp and only use one channel. I can find a 2 channel that will do the trick for that cheap, but I'd rather not have a channel that is being used for nothing....
Any ideas, suggestions just let me know
The horn increases efficiency by acoustically coupling the driver to the surrounding air. On average it runs 10db hotter than a sealed enclosure(according to bill's measurements).
It only has somewhere around 100watts RMS power handling which makes it an easy add on for a car stereo requiring no modification of the electrical system
Come on guys... even pyramid sells cheap amps with variable filters on them..... I said 12db/octave would suffice but PREFERRABLY better.... I just wanted to find something that could be Bridged into 100watts RMS or is Mono into 100watts RMS.... I didnt want to have to buy a 2 channel amp and only use one channel. I can find a 2 channel that will do the trick for that cheap, but I'd rather not have a channel that is being used for nothing....
Any ideas, suggestions just let me know
If you don't mind taking a chance on eBay, check out item #7988989132. This is an old amp, but is unused. I am familiar with this amp from when I was involved in car audio in the late 80's - eary 90's. It is a solid 100 W RMS into 2 to 4 ohms. 24 dB/oct low pass, with parametric boost. Speaker and line level inputs.
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