Diamond Audio TDX d9 15 dvc 4ohm

[D_ALPINE_M 10+ year member]

Just wanted to get some input on this sub. I just recently purchase it and wanted to know if I should go with a sealed or vented enclosure. This is one 15" any iput would be greatly appreciated. I am going to have this sub in my 99 gmc yukon so I have plenty of space in the rear.

Thanks,

Jay

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[BLD 25 10+ year member]

i have the 12 and I love it. Make sure you have at least 1000w rms, if not 12-1500 for it. If you have the room, go ported, but don't use the rec box from the website. Port it low. Don't quote me, but 3 cubes net ported to 30hz or so would probably make you pretty happy

 

[D_ALPINE_M 10+ year member]

Thanks I'm running d3 12 now with 800 rms to both in a vented box and it sounds great. I was told that the sub would not be good in a vented ported style from a DA csr. He told me to go enclosed becuase of the sub. I want to go vented on these sub but not sure if it will be okay for it.

Any dimensions on the 3 cu 30hz?

Initially I was going to go with 4 cu and 35 hz

 

[Ignatowski 5,000+ posts]

Vented 100% I have run D9s ported and sealed and IMO

they are just OK sealed but ported they shine nice...

 

[letchcore 10+ year member]

I heard one 15" TDX D9 in a hatchback car vented and it was freaking amazing. It was the best sounding deep and powerful bass I have ever heard. I think it was powered by a Diamond Audio D6 1500.1. Like was aready said you are going to need at least 1200rms to feed that thing. Also that sub takes a while to break in. So give it awhile before you are critical.

That sub does not get much talk but it is one of the best combinations of SQ/SPL I have heard.

 

[moo_awn 10+ year member]

I have 2 12's in 4.3^3ft@31Hz and they sound amazing. 3^3ft @ 30 or even 28Hz should do the trick for you.

Thanks again Excelerater!

 

[D_ALPINE_M 10+ year member]

Thanks all, lots of input here now I will be doing some measurements sometime this week and get my box started hopefully this weekend.

Keep the info coming never to much to obtain!

 

[alvitae 10+ year member]

A friend put my D9 15" Dual 2 ohm in a sealed box with my concept 2400a amp as a temporary set-up. The sub pounds and sounds great. Had tools jumping off the roof. Sealed sounds great and hits hard. We all were surprised by it.

If I had to do it over again I'd make the box a bit smaller. It's 3^3 and if you read up on the sub they don't recommend ported for the 15. I haven't tried it so I don't know. and they were designed for sql in small enclosures. It was bottoming out when we really pushed it.

 

[D_ALPINE_M 10+ year member]

Yeah I called the DA csr and he told me that a ported box is not recommended. He also said that 3 cu ft is the recommended size for the sealed enclosure. However I was thinking it would be okay in a ported enclosure also.

 

[D_ALPINE_M 10+ year member]

Got the box built and running it with my 800 watts mono block amp. Sounds real good. I am going to run the wires for my 1200 watt amp this weekend. Need to get an amp rack built for it also. Pictures will follow.

 

[JayRich 10+ year member]

A friend put my D9 15" Dual 2 ohm in a sealed box with my concept 2400a amp as a temporary set-up. The sub pounds and sounds great. Had tools jumping off the roof. Sealed sounds great and hits hard. We all were surprised by it.
If I had to do it over again I'd make the box a bit smaller. It's 3^3 and if you read up on the sub they don't recommend ported for the 15. I haven't tried it so I don't know. and they were designed for sql in small enclosures. It was bottoming out when we really pushed it.

if the box is too big why dont you either screw a piece of wood or something in the box to take up space, thus creating a lower amount of cu ft within the box? alot cheaper than making a whole new box