Get Free, Friendly, Expert Advice
Call 1-866-244-8796 or email

Designed and Manufactured in Canada Since 1980


AxiomAudio Blog

Outdoor Speaker Placement

Speaker Placement: Unusual Room Layouts and Elevating Speakers

Positioning Floorstanding Speakers

Wall'O'Fame
Greetings fellow Axiom owners...
HG Rosewoods Part 3
Who's Online
1 registered (CV), 54 Guests and 3 Spiders online.
Key: Admin, Global Mod, Mod
Financing
Forum Stats
13295 Members
11 Forums
22827 Topics
403276 Posts

Max Online: 378 @ 02/24/13 04:33 PM
Top Posters
Ken.C 17742
pmbuko 16259
SirQuack 13318
CV 11146
MarkSJohnson 10833
Meanwhile On Facebook

A very fond farewell party last night . . . we miss you Noreen!

Hope everyone's got their summer favourite playlists cued up for the weekend! W...

(y) Love this customer review of the M2s! "the first time listening to my new a...

These LFR1100 speakers in custom Eggshell White are on their way to Taiwan (yes,...

Page 7 of 9 < 1 2 3 4 5 6 7 8 9 >
Topic Options
Rate This Topic
#226222 - 10/21/08 08:26 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: St_PatGuy]
peenerhead Offline
buff

Registered: 10/19/08
Posts: 44
OK, last night I hooked up the loaner amp (Denon 2809). The setup is the same as in my 1st post except that I took out the extra set of M80s. I powered everything up and now the subwoofer (HSU Research VTF-3 MK3) does not respond. The cable is from the Pre-Out SW. The HSU has power to it but just doesn't do anything. My first inclination is that something blew inside the sub (of coarse). Is there a way for me to verify that the Denon is actually sending a signal to the sub? I have a Fluke 79 III multimeter for signal testing.

Thanks
_________________________


One day your life may flash before your eyes,
try to make it worth watching

Top
#226223 - 10/21/08 08:41 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: peenerhead]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13318
Loc: Iowa
Are your sure you have it on the Sub "Preout", and not one of the other sub jacks like Ext In?
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

Top
#226224 - 10/21/08 08:47 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: SirQuack]
peenerhead Offline
buff

Registered: 10/19/08
Posts: 44
 Originally Posted By: sirquack
Are your sure you have it on the Sub "Preout", and not one of the other sub jacks like Ext In?



Yup, I'm sure.
_________________________


One day your life may flash before your eyes,
try to make it worth watching

Top
#226225 - 10/21/08 09:16 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: peenerhead]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16259
Loc: Leesburg, Virginia
If you clip your fluke to the center pin and the side of the RCA cable attached to the SW pro-out, then you'll detect voltage swings if there's signal on the cable.
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#226227 - 10/21/08 09:33 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: pmbuko]
peenerhead Offline
buff

Registered: 10/19/08
Posts: 44
I assume I set the meter to DC volts?
_________________________


One day your life may flash before your eyes,
try to make it worth watching

Top
#226228 - 10/21/08 10:26 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: peenerhead]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16259
Loc: Leesburg, Virginia
No. Audio uses AC to push and pull drivers past their neutral resting position.
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#226229 - 10/21/08 10:36 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: pmbuko]
peenerhead Offline
buff

Registered: 10/19/08
Posts: 44
 Originally Posted By: pmbuko
No. Audio uses AC to push and pull drivers past their neutral resting position.


Even though this is not the signal that is doing the pushing and pulling? If it is AC, what range should I expect mV or V?

Thanks
_________________________


One day your life may flash before your eyes,
try to make it worth watching

Top
#226232 - 10/21/08 11:49 AM Re: I just blew my amp (Denon 4308CI) now what? [Re: peenerhead]
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3186
Loc: Toronto/New York/Dwight
Hi peenerhead,

The "Subwoofer Out" level is typically in the 200-mV to 2-volt range. It's supposed to be standardized, but there are wide variations from one brand of gear to another.

Regards,

Alan
_________________________
Alan Lofft,
Axiom Resident Expert

Top
#226233 - 10/21/08 12:18 PM Re: I just blew my amp (Denon 4308CI) now what? [Re: alan]
peenerhead Offline
buff

Registered: 10/19/08
Posts: 44
Thanks Alan,

In addition I would also like to post the response from Hsu Research because I thought it might be helpful to someone else in the future.

"Hook up a DVD player's analog outputs directly to the sub using a different cable. If it still does not have any sound, take out the woofer and connect that to your receiver. If that plays fine (muffled, but clean), then its the subwoofer amp. "
_________________________


One day your life may flash before your eyes,
try to make it worth watching

Top
#226237 - 10/21/08 01:53 PM Re: I just blew my amp (Denon 4308CI) now what? [Re: peenerhead]
chesseroo Offline
connoisseur

Registered: 05/13/02
Posts: 4788
Loc: western canada
 Originally Posted By: peenerhead

After everything that has been posted (thanks to all) I think we can all agree...

WE NEED MORE POWER!


I distinctly disagree.
although it should have been obvious that running any electronic component at 100% could cause a malfunction [that combined load and power use would have seriously if not critically taxed the PSU of any receiver] why not look at the other factors affecting the 'problem' such as distance rather than trying to compensate with power?
you have to remember that in adding more power, speakers will come to their physical excursion limits which still may not produce the sound pressure levels that you would like to have 60 ft. away from your stereo system.

possibly what you need are either much larger speakers like those designed for rock concerts, or move closer to your stereo!

along that same line of thinking, move part of the system closer to you.
I don't understand why you have to be 60 ft. away to listen to sound pressure levels from four speakers when you can move half of them closer. Take your second set of speakers, move them closer, and only run one pair at a time off of the receiver depending on where you are in the room.

I have to agree with the limited comments here made about listening levels. the sound pressure level from four speakers playing that loudly can severely damage one's hearing
_________________________
"Those who preach the myths of audio are ignorant of truth."

Top
Page 7 of 9 < 1 2 3 4 5 6 7 8 9 >



Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Home  |  Corporate Info  |  Products  |  Message Board  |  FAQs  |  Warranty  |  Site Map  |  Privacy Statement   |  Contact Us

©2014 Colquhoun Audio Laboratories Limited
All Rights Reserved.