Just got myself a 408! It needs some love, but I can't wait to get my 320 on top of it!
Any suggestions on the preferred speaker replacements, Blue (middle) grill cloth availability, or wiring diagram would save me some searching on the Acoustic Forum!
Hi twhitedc,
The (3rd gen 4x15) 408 cab had 'IIRC' four Eminence 75W drivers (w/the white dust domes) for a total power handling of 300W continuous. All four 8ohm speakers (upper & lower chambers) were wired in parallel for combined total impedance of 2ohms. There is a company that is building a '408 Reissue' cabinet that looked like a very good replica when I came across it... found it on the net but unfortunately I don't remember their address; I think I printed their 408 page 'w/pics' so if I come across it again I'll post it! I believe the speakers they were using were the "Eminence" 8ohm CB-158. I have the Eminence catalog and another strong contender to live in that cabinet is their BASSLITE SERIES C2515; very similar to the CB158. It has a Neo magnet, so the cab would weigh a lot less "using four" for transport! The other thing I like about these BASSLITES is that it comes in 4ohms or 8ohms, so you could wire it in parallel (8ohm version) for 2ohms, or get the 4ohm version and use a series/parallel scheme for a combined total impedance of 4ohms!
There's no 'Blue middle grill cloth' on the 408; you must be thinking of the 301/360. It does, however, have a blue stripe (Acoustic logo) at the top of the upper grill, and a White rand that frames both the upper and lower black mesh grills. You can buy the black mesh to cover the center port chamber from amazon.com or PartsExpress; it comes in a roll of various lengths... for convenience. Best of luck with your new project, Cheers!
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@ Frozen J....yepper....370 ALWAYS stay's plugged in. 150 is just for back-up.