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A new sub and shop stereo I have....


TNT
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Here is the latest sub I just picked up. It's a Konaki KO12-1207A 12" subwoofer with dual 2 ohm voice coils. It has a 3" voice coil for maximum of speaker travel and has a 300 ounce magnet. It is built for SQL(sound quaitity level) but can also put out wicked amounts of SPL(sound presure level). It produces 88.3db of sound at 1 watt from 1 meter away or 1W/m SPL(db)=88.3 db. It weighs 60.1 pounds. :bowdown:

 

It is rated for 2400 watts constant RMS power at 4 ohms or 1 ohm with 5000 watt burps in SPL competitions. :chillin: (1200 watts RMS per voice coil) Power rating edited to the correct specs.

 

Now do I build a box for it as my shop sub or put it in the MJ???

 

If I put it in the shop this is the following stereo system I'm setting up.

 

I have a Behringer PA amp that puts out 700 watts into 2 ohms or 1400 watts in mono into 4 ohms to use as my shop bass amp.

 

I will probably be selling the Sony and Cadence Wildbeast 12" 700 watt RMS rated subs. The two have 2 Kicker dual 2 ohm voice coil subs rated at 400 watts RMS each and I the biggest amp is rated for 800 watts of RMs power at 4 ohms or 700 watts in mono at 2 ohms have and 2 Sony 4 ohm subs rated at 380 watts.

 

I could also build individual boxes for each sub so 1 could be located use them in each corner of the shop. I can wire both pairs so they have each 2 ohm of resistance at the amplifier. The Behringer ampilifier will work great powering them since it has 700 watts of power x 2 in stereo. Set up like this provides each pair of matching subs will have its own channel so gain can be adjusted at the amp for the best staging. It will have great sound stage imaging like this because the subs would be in stereo. Then they can be located to help rattling everything on my my full width rear shelf like my present subs do.

 

I have a Yamaha RX-V3000 which is a 650 watt RMS 6.1 surround audio/video system. It has 8 channels which have the following amount of RMS watts of output. There is 100 watts to each front speakers, 100 watts to the front center channel, 100 watts to each rear main speakers, 100 watts to the rear center channel and 25 watts to the front effect channels.

 

It has 61 RCA, 3- 1/8" jacks, 1 RS-232C connector, 7 digital optical hookups, 3 cable antenna 75 ohm connectors, 9 S-video connectors, 20 speaker wire connectors,along with 3 110v outlets on the back and 1 S-video 3 RCA and 1 digital optical hookups on the front.

 

It's insane to see the back of it.

 

It will power 3 pairs front speakers(Polk and Pioneer), 2 front effect Aiwa speakers, 2 front center channel speakers (Polk and BIC America DV52CLR.), 2 pairs of rear speakers(Polk and KLH)and 2 rear KLH center channel speakers, not counting the subs. I also have a Sony 400 disc CD changer for comercial free music.

 

This will still leave me with a pair of subs and this monster Konaki sub I could put in the MJ...

 

What to do... I'm just not sure.

 

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60+ freeking pounds?

 

"Now do I build a box for it as my shop sub or put it in the MJ???"

 

No brainer - shop sub.

 

I have been researching how to build a bass horn style box for it. That would up the output to about 105db at 1 watt at 1 meter and be pefectly tuned for the stereos cross-over.

 

I kinda want to make it down firing into a ported box with the sub mounted just behind the console.

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60+ freeking pounds?

 

"Now do I build a box for it as my shop sub or put it in the MJ???"

 

No brainer - shop sub.

 

 

I think the shop will get the 2 Kicker and 2 Sony subs. It's to nice to trash in the shop.

 

The don't know will get my 2 Cadence Wildbeast subs.

 

I'll either sell it or put it away until I get a nice '93-'95 Buick Roadmaster to put it in.

 

I'll probably just sell it... $220.00 + shipping and it's yours. (I got a great deal on it, it's a $400.00+ sub).

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After further reseach think I will be using the Konaki KO12-1207A 12" subwoofer in a custom deigned enclosure. It would be simular to the following picture, but will have some design changes which will improve velocity and it may have a bandpass chamber instead of firing forward and using the port as a horn type port system. It will be mounted so it is firing outward as part og the front sound stage.

 

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:cheers:

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Well I just gave the new set-up about an hours work out at about 1500 watts RMS.

 

I was able to make my 1400 watt Behringer amp to even activate the clipping protection a couple times.

 

Both units are hot. The sub amp is cooking. I have them idling so they cool off. The fan in the amp does a good job.

 

Everything sounded great so far. Pink Floyds - Wish You Were Here (complete disc), some Nickleback, some Kid Rock ended it with some Stevie Ray Von.

 

It kicks no doubt....

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