DanYmaL X Posted January 14, 2003 Share Posted January 14, 2003 I run an Acoustic B-3 Head into what I thought was a Fender 1x18 145W, 4 ohm 400 PS bass cab. Turns out as I busted the cab open yesterday, I have a Fender cab with a Sound Technologies STS618-8 which is a 400W, 8 ohm speaker. What the hell is the true meaning of impedence and how the hell does it apply here? My head says 320W @ 4 ohms. I have a speaker that says 400W @ 8 ohms. I have noticed that my 'Clip' light comes on alot, in certain situations, such as when playing a guitar through the amp, especially with the bridge pickup cranked. Or when I 'put the hammer down' on my bass... I just recently read an article (don't remember where) about clipping and how the impedence / wattage of an amp / cab setup need to match (this is what prompted me to open my cab.) If I remeber correctly, the article seemed to indicate that a speaker's RMS rating should be lower than the amp's to avoid clipping? Or did I read it all backwards? Is the reason my setup clips so much due to the 400 watt speaker? And if my head says 320W @ 4 ohms, what how do I figure out what I'm really getting with an 8 ohm 400W speaker? Any help here would be appreciated... I am/was planning to add a 2x10 cab to the setup, but now I need to figure out how to match the cabs for the best results... or if I need to get new cabs altogether. Geez, this amp thing is COMPLICATED! DX Aerodyne Jazz Deluxe Pod X3 Live Roland Bolt-60 (modified) Genz Benz GBE250-C 2x10 Acoustic 2x12 cab Link to comment Share on other sites More sharing options...
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