Suggestions on plate amps for my subwoofer

Johnny25 · 8th March 2006, 10:09 PM

I have recently downloaded a freeware program that allows me to put in details like qts and qms to design a subwoofer enclosure. I have a 15" sub and I have provided a picture with a graphical representation of what the box should look like after it is done and all of its specifications. Also not that i am building two of these. I was hoping that someone could let me know what kind of plate amp or amps would be best to buy for this sub/ box combo. I'm looking for good low end response and low distortion, or high quality bass for short. I would also like to have good features like dampaning factor, crossover, etc. However I would also like to save a little money and only spend somewhere in the ball park of $200-$300. Any ideas would be great.

Cal Weldon · 8th March 2006, 11:09 PM

Do you like the looks of this?

http://www.partsexpress.com/pe/showd...number=300-806

EC8010 · 8th March 2006, 11:22 PM

Actually, no. 98dB "A" weighted S/N ratio doesn't look terribly good. I can't remember the exact attenuation of the "A" weighting curve at subwoofer frequencies, but it's significant. Look it up and see what you think.

westend · 9th March 2006, 04:29 AM

Quote:

Originally posted by EC8010
Actually, no. 98dB "A" weighted S/N ratio doesn't look terribly good. I can't remember the exact attenuation of the "A" weighting curve at subwoofer frequencies, but it's significant. Look it up and see what you think.

The PE plates are basically noiseless, AFAIK. I don't know about A weighted scale but the 500w plate that was linked to is a class G in topography and since it pushes subwoofer frequencies noise shouldn't be an issue. Mine is as dark as night.

Cal Weldon · 9th March 2006, 04:25 PM

So is mine.

Johnny25 · 13th March 2006, 04:42 AM

The amplifier looks pretty good. Although I didn't really stress this, but the subs are going to be relatively far apart. Two amps might be better than one. It seems like a quality amp to me, though I have no experience with them, but is there one as nice that I could buy two of and still be in the same price range. It has to be close to 200watts.

vinnie · 13th March 2006, 10:13 AM

How about 2x Apex senior ?

simon5 · 13th March 2006, 10:26 PM

I suggest 2x Rythmik Audio A250 (109$ each) or 2x Rythmik Audio A350 (149$ each).

http://www.rythmikaudio.com/nonservo...t.htm#250basic

http://www.rythmikaudio.com/nonservo...t.htm#350basic

9th March 2006, 04:25 PM	#5
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	So is mine. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

13th March 2006, 10:26 PM	#8
simon5 diyAudio Member Join Date: Nov 2004 Location: Québec, Québec	I suggest 2x Rythmik Audio A250 (109$ each) or 2x Rythmik Audio A350 (149$ each). http://www.rythmikaudio.com/nonservo...t.htm#250basic http://www.rythmikaudio.com/nonservo...t.htm#350basic __________________ DIYaudio for President !

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8th March 2006, 11:09 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Do you like the looks of this? http://www.partsexpress.com/pe/showd...number=300-806 __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

8th March 2006, 11:22 PM	#3
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	Actually, no. 98dB "A" weighted S/N ratio doesn't look terribly good. I can't remember the exact attenuation of the "A" weighting curve at subwoofer frequencies, but it's significant. Look it up and see what you think. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

13th March 2006, 04:42 AM	#6
Johnny25 diyAudio Member Join Date: Jan 2006 Location: Tennessee	The amplifier looks pretty good. Although I didn't really stress this, but the subs are going to be relatively far apart. Two amps might be better than one. It seems like a quality amp to me, though I have no experience with them, but is there one as nice that I could buy two of and still be in the same price range. It has to be close to 200watts.

13th March 2006, 10:13 AM	#7
vinnie diyAudio Member Join Date: Jul 2004 Location: Here	How about 2x Apex senior ?

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