Peavey Subcompact 18 - Black Widow
in [Live Sound]
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From: Andy Hart on 24 Jul 2007 12:55 In message <46A62803.4C6C701C(a)hotmail.com>, Eeyore <rabbitsfriendsandrelations(a)hotmail.com> writes > > >Andy Hart wrote: > >> I rang Peavey customer service who told me I'm using an amp with too >> much power (Peavey 8.5c - 850w rms bridged into 8 ohms) and they would >> not replace the basket under warranty. >> >> Is this correct? Am I using an amp with too much power? >> >> I've previously used this same setup successfully for the past 5 years >> at higher levels with no problems. > >The power rating is 350W continuous. An 850W amp will have no trouble damaging >it. > >Your judgement of '2/3rds volume' (whatever that's supposed to be) is clearly >defective. See my other post. >As to the recommended amplifier size, that depends a lot on how you use it. Agreed, but I have been using the system for the past 5 years in this configuration with no problems. The old basket didn't burn or smell, it just gave good clean bass, the new one (with less stress) had an attempt at burn out. could it have been defective manufacture? -- Regards Andy Hart
From: Eeyore on 24 Jul 2007 14:16 Andy Hart wrote: > Eeyore writes > >Andy Hart wrote: > > > >> I ran it > >> for about 30 mins at lower than (about 2 thirds) normal volume > > > >How do you know it was as yopu say " 2 thirds normal volume " ? Do you have > >calibrated ears ? > > The master fader was 2 thirds it's "normal position" You do realise that the master fader has no effect on how much power goes to the speaker ? I short, it's NOT a 'power control' in any way, shape or form. If you didn't realise, now would be a good time to learn. Graham
From: Eeyore on 24 Jul 2007 14:21 Andy Hart wrote: > Eeyore writes > >Andy Hart wrote: > > > >> I rang Peavey customer service who told me I'm using an amp with too > >> much power (Peavey 8.5c - 850w rms bridged into 8 ohms) and they would > >> not replace the basket under warranty. > >> > >> Is this correct? Am I using an amp with too much power? > >> > >> I've previously used this same setup successfully for the past 5 years > >> at higher levels with no problems. > > > >The power rating is 350W continuous. An 850W amp will have no trouble damaging > >it. > > > >Your judgement of '2/3rds volume' (whatever that's supposed to be) is clearly > >defective. > > See my other post. What signal / material were you playing through it ? The only way to be sure of the power is to meter the amp output. > >As to the recommended amplifier size, that depends a lot on how you use it. > > Agreed, but I have been using the system for the past 5 years in this > configuration with no problems. The old basket didn't burn or smell, it > just gave good clean bass, the new one (with less stress) had an attempt > at burn out. could it have been defective manufacture? I doubt that it's a manufacturing issue. If there's any difference, modern materials are better so will take more of a beating. One possibility not yet considered is that there may have been some ultrasonic oscillation from the amplifier. You wouldn't hear that but it'll certainly cook a voice coil. You'd need some test gear (and maybe a techie too) to check that out of course. Graham
From: Andy Hart on 24 Jul 2007 15:04 In message <46A64324.658429E4(a)hotmail.com>, Eeyore <rabbitsfriendsandrelations(a)hotmail.com> writes > > >Andy Hart wrote: > >> Eeyore writes >> >Andy Hart wrote: >> > >> >> I rang Peavey customer service who told me I'm using an amp with too >> >> much power (Peavey 8.5c - 850w rms bridged into 8 ohms) and they would >> >> not replace the basket under warranty. >> >> >> >> Is this correct? Am I using an amp with too much power? >> >> >> >> I've previously used this same setup successfully for the past 5 years >> >> at higher levels with no problems. >> > >> >The power rating is 350W continuous. An 850W amp will have no >> >trouble damaging >> >it. >> > >> >Your judgement of '2/3rds volume' (whatever that's supposed to be) >> >is clearly >> >defective. >> >> See my other post. > >What signal / material were you playing through it ? An MP3 player with background music, music varies pop, rock, country, ballads. > The only way to be sure of the >power is to meter the amp output. > > >> >As to the recommended amplifier size, that depends a lot on how you use it. >> >> Agreed, but I have been using the system for the past 5 years in this >> configuration with no problems. The old basket didn't burn or smell, it >> just gave good clean bass, the new one (with less stress) had an attempt >> at burn out. could it have been defective manufacture? > >I doubt that it's a manufacturing issue. If there's any difference, modern >materials are better so will take more of a beating. > >One possibility not yet considered is that there may have been some ultrasonic >oscillation from the amplifier. You wouldn't hear that but it'll >certainly cook a >voice coil. Yes, the amp is quite an old Peavey 8.5c, maybe it's time to retire it, it's not the best quality anyway and could very easily have a problem. > You'd need some test gear (and maybe a techie too) to check that out >of >course. My Other Peavey (1.3k) went "DC" and blew the top cabs (replaced with a Behringer), maybe it's time to ditch Peavey altogether. I've just (10 mins ago) purchased a pair of JBL bins from a friend, I don't think I'll risk them on the Peavey, time for another Behringer methinks. Thanks for the advice -- Regards Andy Hart
From: Ron(UK) on 24 Jul 2007 15:21
Andy Hart wrote: > I've just (10 mins ago) purchased a pair of JBL bins from a friend, I > don't think I'll risk them on the Peavey, time for another Behringer > methinks. > > Thanks for the advice I`ve just had two Behringer EP2500 fail on me in quick succession (different rigs, different faults) No doubt some people will leap to their defence, but it`s no more Berhinger amps for me. Ron(UK) |