Def Tech bp7000sc with Klipsch Rf83's?

[mazersteven]

The subwoofer of the BP7000SC (22Hz-20kHz +/- 3dB) will even beat the $3,000 Velodyne subwoofer DD-12 (23Hz-80Hz +/- 3dB)

I have never auditioned the Velodyne DD-12. But when I auditioned the 7000's on several occasions, I thought the bass was weak. I have even auditioned with a SuperCube Reference in the mix.

I would put my PB12-Plus/2 up against those 7000's.

 

[Buckeye_Nut]

I think the DT's with the mini built-in subs are adequate for typical music applications, but when it comes to movie applications..... you need a real sub. They're on par with the many stand alone micro-subs selling on the market today, but in no way should they be confused as the real thing.

 

[AcuDefTechGuy]

When I auditioned the BP7000SC on several occasions, I thought the bass was weak.

It depends on the subwoofer output volume as well as the room size and acoustics. For example, Audio-Video Revolution set the volume of the BP7000SC to 1/3 amount. Home Theater Magazine set the volume of the BP7000SC to the 10' O clock position.

When I set the Bp7000SC's Sub volume to 10' O Clock in my HT, I got huge bass response. But I like my bass A LOT LOUDER than probably recommended. So I set my BP7000SC to 12' O clock. Everytime there's an action scene that uses a lot of bass, my room literally shakes and my Toshiba remote control lights up due to motion sensor! In fact, I can hear the tremendous bass output far across my 3,000SF house even with my HT door closed.

 

[AcuDefTechGuy]

The DT's with the mini built-in subs are adequate for typical music applications, but when it comes to movie applications..... you need a real sub.

The BP7000SC has one 1800-Watts RMS 14" Active Subwoofer and two 14" passive radiators. According to HT Mag, it is 22Hz-20kHz @ 85dB +/-3dB. The Velodyne DD-12 is 23Hz-80Hz @ 85dB +/-3dB. Again, numbers don't tell the whole story and will be slightly different than real life situations, but they are usually pretty close.

 

[Davemcc]

In fact, I can hear the tremendous bass output far across my 3,000SF house even with my HT door closed.

When I really drive my subs, I rattle the screen door of my neighbor's house. What SPL are the DT's capable of? Can they hit 100dB?

 

[Buckeye_Nut]

The BP7000SC has one 1800-Watts RMS 14" Active Subwoofer and two 14" passive radiators. According to HT Mag, it is 22Hz-20kHz @ 85dB +/-3dB. The Velodyne DD-12 is 23Hz-80Hz @ 85dB +/-3dB. Again, numbers don't tell the whole story and will be slightly different than real life situations, but they are usually pretty close.

Those specs mean little, because they don't translate into real world performance. The enclosure is equally important to performance, and the DTs are lacking a proper enclosure.


Jamming a woofer and plate amp into the side of a skinny unsubstantial tower doesn't a subwoofer make

Sincerely,
Yoda

 

[GlocksRock]

Those specs mean little, because they don't translate into real world performance. The enclosure is equally important to performance, and the DTs are lacking a proper enclosure.


Jamming a woofer and plate amp into the side of a skinny unsubstantial tower doesn't a subwoofer make

Sincerely,
Yoda

That's why they have polyfill, and passive radiators that take the place of ports.

 

[Buckeye_Nut]

That's why they have polyfill, and passive radiators that take the place of ports.

There is nothing wrong with micro sub enclosures if you don't have room for anything more substantial. It's a great fall back position for those whose wifes won't allow them to buy a real subwoofer because of WAF issues. On one hand you've got the mini-cube market, and the other is the market where there is no sub......because it's squeezed into the same space as the loudspeaker itself.....They all definitely have their place in the market because they're an excellent alternative to having nothing at all.

However, they should not be confused as the real thing. I don't care if they squeeze a 10,000 watt plate amp into the tower enclosure...LOL It's not gonna make a difference because the enclosure itself equates to a micro-sub. Their performance will always be limited by pure physics.

...which reminds me of a discussion about the performance of a $1,100 9"x9" micro subwoofer in a recent thread. Someone stated that ...."It sounds great for a 9"x9" subwoofer" which indeed says it all. Well....the same can be said for the DT subwoofer performance. They do perform well....considering they are enclosure handicapped.

 

[GlocksRock]

This is true, and while they aren't in SVS sized enclosures, the larger SC def tech towers are quite large, and still have a decent sized enclosure. The only def tech towers I have heard with the built in subs were the older BP2004, not sure if it's the TL line or not, but for the room it was in, it sounded pretty good, but it definitely doesn't hit the lows like my svs does... but then again it's not designed for that. So while I agree, it's always best to have a dedicated sub, I still say that it's not always needed, it all comes down to your budget, room layout, and personal preference.

 

[AcuDefTechGuy]

When I really drive my subs, I rattle the screen door of my neighbor's house. What SPL are the DT's capable of? Can they hit 100dB?

Did they call the cops?


100dB? Are you kidding me?
I've never tried to push the DT's Sub power, but I am way too chicken to go that far!

 

[AcuDefTechGuy]

Those specs mean little, because they don't translate into real world performance.

So just because the subwoofer is placed in a certain enclosure means that the SPL reading means little and not acurate? I don't think the SPL meter is prejudice towards the enclosure of the subwoofer. If the sound is at 90dB and is measured 22Hz, it is real.

Unless you are saying that speaker A @ 90dB may sound louder than speaker B @ 90dB? I can see where QUALITY may differ, however.

 

[AcuDefTechGuy]

What SPL are the DT's capable of? Can they hit 100dB?

According to DefTech, the DT BP7000s are measured @ 90dB (+/-3dB) from 20Hz-20kHz. I guess they did not measure @ 100dB.