speaker level input vs line level question

crippledchicken · 10th July 2007, 11:26 PM

i'm running a PE BASH 500 AMP on the Dayton 15" dual coil driver rated at 600 watts with coils in parallel. the enclosure is about 4.8 cu ft little small i know! tuned between 19 and 20 hz using 4" dual flare precision port 17" total length. the driver is hard to drive with the low 2.6 dcr. when driving by line level from my adcom 2 channel preamp, on LOTR RETURN OF THE KING, the amp shuts down with gain on Bash amp a little above half way on certain parts. half way or below i have no problems. i tried speaker level inputs from my Onkyo M-282 power amp. now, at same gain settings on both preamp, and bash amp the bash amp doesn't shut down on same parts of dvd but, it sounded like maybe the driver cone made a popping noise, bottomed, etc. not quite sure so i quickly turned it down. which way should i feed the Bash amp speaker level/line level? seems feeding speaker level the sub output seems to get louder faster and also, lower gain setting with no amp shut down but plenty of output just have to watch gain control. when fed line level the amp shut down with green light still on but no output. i had to flip main on/off power switch to off wait a few seconds then turn back on and it would work again. the shutdown was quick without excessive heat like maybe it was an over current issue? as i say, the driver only has 2.6DCR spec. any advice would be appreaciated!

Cal Weldon · 16th July 2007, 11:27 PM

Try running your coils in series and use line level.

The only time you want to use the speaker level in is when you intend to use the high pass outputs for satellite speakers from the plate amp. Those outputs don't work unless you use the speaker level in.

crippledchicken · 17th July 2007, 03:54 AM

will the 16 ohm series load change the paramaters specs, and will i loose alot of output? Thanks!

Cal Weldon · 17th July 2007, 04:31 AM

Quote:

Originally posted by crippledchicken
the amp shuts down with gain on Bash amp a little above half way

Just a suggestion.

crippledchicken · 17th July 2007, 04:36 AM

oh, i realize that and appreaciate your help! i might just try it and see what happens. Thanks again!

10th July 2007, 11:26 PM	#1
crippledchicken diyAudio Member Join Date: Dec 2003 Location: south east mo.	speaker level input vs line level question i'm running a PE BASH 500 AMP on the Dayton 15" dual coil driver rated at 600 watts with coils in parallel. the enclosure is about 4.8 cu ft little small i know! tuned between 19 and 20 hz using 4" dual flare precision port 17" total length. the driver is hard to drive with the low 2.6 dcr. when driving by line level from my adcom 2 channel preamp, on LOTR RETURN OF THE KING, the amp shuts down with gain on Bash amp a little above half way on certain parts. half way or below i have no problems. i tried speaker level inputs from my Onkyo M-282 power amp. now, at same gain settings on both preamp, and bash amp the bash amp doesn't shut down on same parts of dvd but, it sounded like maybe the driver cone made a popping noise, bottomed, etc. not quite sure so i quickly turned it down. which way should i feed the Bash amp speaker level/line level? seems feeding speaker level the sub output seems to get louder faster and also, lower gain setting with no amp shut down but plenty of output just have to watch gain control. when fed line level the amp shut down with green light still on but no output. i had to flip main on/off power switch to off wait a few seconds then turn back on and it would work again. the shutdown was quick without excessive heat like maybe it was an over current issue? as i say, the driver only has 2.6DCR spec. any advice would be appreaciated!

16th July 2007, 11:27 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Try running your coils in series and use line level. The only time you want to use the speaker level in is when you intend to use the high pass outputs for satellite speakers from the plate amp. Those outputs don't work unless you use the speaker level in. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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17th July 2007, 03:54 AM	#3
crippledchicken diyAudio Member Join Date: Dec 2003 Location: south east mo.	will the 16 ohm series load change the paramaters specs, and will i loose alot of output? Thanks!

17th July 2007, 04:36 AM	#5
crippledchicken diyAudio Member Join Date: Dec 2003 Location: south east mo.	oh, i realize that and appreaciate your help! i might just try it and see what happens. Thanks again!

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