B652 Modifications- Upgrades?

[Whitneyville1]

Re: B652 Modifications- Upgrades?

Yup, me too Duane, but with Zaph's XO. Took the power handling hit. I've tried some ~ .38 cf boxes too. Half-way "compromises". You just can't let the woofer go so high into break-up range when the tweeter can play nearly an octave and a half lower. Don't try putting a Vifa BC25TG15-04 in the top hole with Zaph's XO. You'll be ruined. It actually sounds like a speaker.

[duanebro]

Re: B652 Modifications- Upgrades?

I'm not sure I would add a tweeter that costs more than the speakers... I built .5 cf boxes for mine. Big improvement. If they are still the same as the ones I bought 3 years ago then they just have a cap on the tweeter. Adding a L-pad or just a resister before the cap can bring down the tweeter level if it is needed.

[lemmalone]

Re: B652 Modifications- Upgrades?

If the link below goes to the tweeters you are talking about, look at the review by Doc Jones, who used these as additional super-tweeters in the B652 and describes his crossover and the stand. He likes 'em.

http://www.parts-express.com/dayton-audio-amt-mini-8-air-motion-transformer-tweeter-8-ohm--275-095

[ksrigg]

Re: B652 Modifications- Upgrades?

OK......but IF a guy were to buy the el cheao Dayton AMT's, what would the textbook crossover components be? I am assuming running the woofer either as is, or running it with no crossover...in other words,crossing over and protecting the Dayton AMT's at what point, and using what components?

[Tin_Ears]

Re: B652 Modifications- Upgrades?

It's just my opinion, and I'm just a novice, but I would treat this set for what it is... a budget-priced speaker/amp combo capable of decent casual listening during poker games and while working around the house. I've read that Leroy is correct... the 6.5" buyout woofers are the very same as in the B652 speakers. I'd just enjoy them for what they are.

BTW, I bought this exact set as a Christmas gift for a buddy who likes to play music through his iPhone during poker games. This will definitely be an improvement over that built-in iPhone speaker!! So, even though I "technically" bought these for him, it's as much for me too. That iPhone micro-speaker sounds like sh..... :D

[Leroy R]

Re: B652 Modifications- Upgrades?

I believe the 6 1/2" buyout driver is the same driver used in the B652s. A tweeter replacement would mean a new crossover would need to be designed.

[ksrigg]

I just bought a pair of these for my father for Christmas, and couldn't resist hooking them up to the little T amp included in the "bundle" and I have to say, they aren't awful. In fact, I think they do have some possible room for improvement. What do you think about replacing the tweeter with the inexpensive Dayton Air Motion Transformer tweeter? And then replacing the woofer with either the 6 1/2" buyout woofer, or possibly something else. (I have some Vifa P17's and P18's and some Chinese knockoffs laying around...I know it's probably not worth it....but I want to go for it anyway. Any ideas, or comments? What do you guys think the Dayton AMT tweeter would do for the sound? Could they keep up? Is the "buyout" 6 1/2" poly mid-bass an "upgrade" or am I simply stepping sideways?

What about crossover? I understand the buyout woofer can be run without any crossover, what would you put on the AMT? Anyone have a design for a crossover to these which would work? Just textbook is fine, and I guess a high order is best?

Any help in improving the B652 is greatly appreciated...plus it's a little project I could do with my Dad, who is in a Retirement Home, but still loves excellent sound. I made a pair of Zaph Bargain MTM's using the MCM 55-1855 and Seas tweeter, which he loved, but he couldn't have the 100 watt per side receiver and those speakers in his room......but I think this little setup will be just fine....I just want it to sound as good as possible without breaking the bank...

Oh....I do know of Zaph's crossover changes, but that is for a different version of these speakers than current production,,,,or maybe I could try them....oh and how about the buyout tweeters ...they are 2 7/8", but may be the same tweeter already in the BR......I just am looking for ideas...

Thanks

Ideas?