two Diamond Audio M6 MARKII subs
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39646
Printed Date: May 13, 2025 at 8:46 AM
Topic: two Diamond Audio M6 MARKII subs
Posted By: Lizardking
Subject: two Diamond Audio M6 MARKII subs
Date Posted: September 23, 2004 at 9:41 PM
Had a custom box built (downfiring) with two Diamond Audio M6 MARKII subs.. It sounded like @#$! When we held the box upright it toward the front of my truck it sounded alot better.. When it was downfiring it sounded like it was bottoming out when we increased the volume. Is this sub any good for downfiring?
Replies:
Posted By: 94legend
Date Posted: September 23, 2004 at 10:11 PM
I'm lost, not sure what you are talking about, Anyone help us out. Downfiring? lol sorry!
Posted By: Francious70
Date Posted: September 23, 2004 at 10:17 PM
Downfiring is somthing used in home audio, but I've never heard of it being done in car audio. Why not just have them facing normal??
Paul
Posted By: Velocity Motors
Date Posted: September 23, 2004 at 10:17 PM
What's the box made of ? What's the amp powering it ? How do you have the subs hooked up ? We need this information for other's to help you out.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Lizardking
Date Posted: September 23, 2004 at 10:20 PM
The box is made of 3/4' MDF and the amp powering it is a US Acoustics 1000D (1250watts RMS @ 1ohm load 12.9volts) We have subs hooked in parallel.
Posted By: stevdart
Date Posted: September 23, 2004 at 10:48 PM
Lizardking wrote:
Is this sub any good for downfiring?
Looks like you answered your own question. Without changing anything else, you turned the box toward the front and the problems stopped. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: Lizardking
Date Posted: September 23, 2004 at 11:06 PM
It's not that it stopped it sounded better but not like it should...
Posted By: customsuburb
Date Posted: September 24, 2004 at 4:06 PM
How are your gains set?
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Posted By: Lizardking
Date Posted: September 24, 2004 at 11:15 PM
We had gains set very low because as we increased the gain it got worse.
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