Active 3-ways with solen active loudspeaker module

[soundemon]

Hi All
First time post here. I'm a frequenter of Canuck audio mart and AVS forum. Great site so far for DIY, tons of info.

I'm looking at building some 3-way LCR speakers and considering using the solen active loudspeaker module for the tweet and mid
http://www.solen.ca/pub/cms_nf_catal...2=2&niveau3=40
Powering the Vifa 27TG35 tweeter and the Vifa DM75MX-41 mid (both of these used in PMC OB1+ speakers which I love)

and then using an Anthem MCA30 3-channel amp to power the woofers, likely a pair of 8" drivers, possibly the usher 8955A. I'll be crossing over to my infinate baffle subwoofer at 40Hz. and using active crossovers to split the lows from the mid/highs.

anyone have any comments on this perspective design? I don't mind building cabinets to suit driver choices, and my woodworking skills are none too shabby...

[tinitus]

Originally posted by soundemon
Hi All

Powering the Vifa 27TG35 tweeter and the Vifa DM75MX-41 mid (both of these used in PMC OB1+ speakers which I love)

There seems to be no highpass on DM75, or have I missed it

[soundemon]

Originally posted by tinitus



There seems to be no highpass on DM75, or have I missed it

I'd be using another crossover to highpass to the mid/tweet and lowpass to the woofers. I'd love to stick with all RCA but this is one of the only ones I've found with RCA conectivity:
Gemini CX-1000
http://www.abesofmaine.com/item=GMCX1000~item.htm

[soundemon]

Assuming that the amplification and crossover ideas aren't ludicrous, I wonder how I would be better served for the woofers enclosure. if an F3 @ 40Hz is acceptable, would I be better off with a ported or a sealed enclosure? I'm very open to larger sized enclosures...
What I'm looking for is good mid-bass impact and detail. subwoofers are covering 40Hz on down.

I've also got to decide whether to build one large enclosure with the tweet and mid seperated, or build seperate enclosures for the mid/tweet and bass bins. (I'm leaning towards a single enclosure)

[tinitus]

Originally posted by soundemon

I wonder how I would be better served for the woofers enclosure. if an F3 @ 40Hz is acceptable, would I be better off with a ported or a sealed enclosure?

I've also got to decide whether to build one large enclosure with the tweet and mid seperated, or build seperate enclosures for the mid/tweet and bass bins. (I'm leaning towards a single enclosure)

I would recommend closed fore woofers, and find the woofers that suit the situation
If the Usher you mention is W8955K, it seems they roll off nicely around 45-50hz/-3db

I would recommend seperate enclosures
As you use standard active filters, it may be convenient to be able to adjust the position of each box section

But whether its a good thing you are planning, is hard to say...how the suggested drivers behave with those active filters is probably as unpredictable as passive filters
And to combine two completely different active filter designs may not go so easy either

[docrw]

soundemon
I also have one of these that I bought to hopefully dial in different drivers before designing the Xovers for speakers. I bought a Gemini CX-1 but didn't get any instructions do you think you could send me a copy of yours? I looked on line everywhere and can't find one. You're my only hope.
Thanks

Originally posted by soundemon


I'd be using another crossover to highpass to the mid/tweet and lowpass to the woofers. I'd love to stick with all RCA but this is one of the only ones I've found with RCA conectivity:
Gemini CX-1000
http://www.abesofmaine.com/item=GMCX1000~item.htm

[sreten]

Hi,

I'd say build this : http://www.zaphaudio.com/ZDT3.5.html

Use your active crossover, 3 channel amplifier and subwoofer.

It will work far, far better that what you are planning.

/sreten.

[soundemon]

Originally posted by docrw
soundemon
I also have one of these that I bought to hopefully dial in different drivers before designing the Xovers for speakers. I bought a Gemini CX-1 but didn't get any instructions do you think you could send me a copy of yours? I looked on line everywhere and can't find one. You're my only hope.
Thanks

I haven't actually got one of these crossovers yet - just discusing perspective plans.
If I had the manual I certainly would make you a copy. Sorry I can't help!!

[docrw]

Hello,
Did you build the ZDT3.5's? If you did, I sure like to hear about it, also what you are referencing them to and driving them with.
I built the BAM MTM and so far not to happy, but hoping to discover I made a mistake in the Xovers (still in that discovery stage 2/2009).
What's your suggestion on using the active crossover? I have the Gemini CX-1
It sounds like my idea is a bad one...?

Originally posted by sreten
Hi,
I'd say build this : http://www.zaphaudio.com/ZDT3.5.html

Use your active crossover, 3 channel amplifier and subwoofer.

It will work far, far better that what you are planning.

/sreten.

[sreten]

Originally posted by docrw
Hello,
Did you build the ZDT3.5's? If you did, I sure like to hear about it,
also what you are referencing them to and driving them with.

I built the BAM MTM and so far not to happy, but hoping to discover
I made a mistake in the Xovers (still in that discovery stage 2/2009).
What's your suggestion on using the active crossover?
I have the Gemini CX-1, It sounds like my idea is a bad one...?

Hi,

No i have not built them. IMO a cheap chinese 15W/40W active
module used for mid and treble is not going to hold a candle to
a good 200W amplifier driving a properly designed loudspeaker.

The ZDT3.5 seems the sort of thing that you want, by relaxing
the subwoofer point upwards you could make them quite compact.

I think you be better off using your 3x200W amplifier full range.
Using any good loudspeaker design that you want.

Using active c/o's is not a short cut to good speaker design,
it is fine if the active c/o's are designed properly, but they
are not "designed" at all if already built into modules.

Also note the ZDT3.5 has a different centre channel version.

/sreten.