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Multi-Way Conventional loudspeakers with crossovers

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Old 29th March 2003, 04:24 PM   #11
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Well, the most important thing if you don't want to play with the crossover is to build something that has gone through the ropes of tweaking and various builders/reviews, etc.

By all accounts, the D3 is great value, but for HT in the case where you already have a sub, you could probably do better since great bass should be less of a selling point for you.

I would personally shoot for a design that people think of as great midrange. I'm also one of the people who likes all 5 or 6 HT speakers to be identical, so I would look for a design where the size would be acceptable for a center channel.
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Old 29th March 2003, 04:48 PM   #12
RAW is offline RAW  Canada
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After building the DIII's and alot of other designs.I will say for the money the DIII is not bad.
But after building the following all at the same time and listening to them all.

DIII's
MB1 or equal to the AV1 from GR
MT using MCM 1855-480
MT using the 1860 from MCM and the STW1 from Stryke

All good bang for your buck
The MB1 or AV1 has far claener and a better mix of mids over the DIII's.
Not my own words others have said the same.
But for a budget design that will blow your mind.

MT using the 1855 and 480 tweeter also from MCM.Cost $60.00 USD for all parts.
And they tune out at 68hz a good point for sub and the drivers are all shielded.

Al
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Old 29th March 2003, 06:56 PM   #13
Variac is offline Variac  United States
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My understanding of a 2.5 way is that it is a 2 way with 2 woofers, but that one of the woofers only augments the lower base (it is rolled off lower than the other woofer) So the difference is that each woofer has a different crossover.
The 2.5 seems to work well to compensate for baffle step.

I could well be wrong but to me a MTM is a 2 way, A 2.5 way would roll one of the woofers off early, which isn't an MTM anymore, but instead a MT with a "helper" woofer.

As Dave often points out, a 2 way bipole arrangement inherently compensates for baffle step, which is a great help for those of us in DIY-one less tweak to worry about!
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Old 29th March 2003, 08:32 PM   #14
qwad is offline qwad  Australia
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check out partsexpress in their DIY site THERE ARE SEVERAL INTERESTNG AND WELL DOCUMENTED designs there using partsexpress drivers these should be well within your budget and the drivers apperantly aren't too bad either....
tom
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Old 30th March 2003, 01:15 AM   #15
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Quote:
Originally posted by Variac
As Dave often points out, a 2 way bipole arrangement inherently compensates for baffle step, which is a great help for those of us in DIY-one less tweak to worry about!
Variac has the 2.5 way right. The only issue with a front facing x.5 way is that as the midbass that has the lower XO rolls off it rolls out of phase 90 degrees with the one running up to the tweeter. In an x.5 bipole arrangement this phase roll is in the shadow of the enclosure so the problem mostly goes away. Of course there is always the option of running the back driver all the way up and just using the enclosure shadow for your "XO". This is of course room & driver dependent. (the alphaTL -- pic a couple posts up -- runs this way)

dave
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Old 30th March 2003, 07:57 AM   #16
Bricolo is offline Bricolo  France
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Quote:
Originally posted by planet10


Variac has the 2.5 way right. The only issue with a front facing x.5 way is that as the midbass that has the lower XO rolls off it rolls out of phase 90 degrees with the one running up to the tweeter. In an x.5 bipole arrangement this phase roll is in the shadow of the enclosure so the problem mostly goes away. Of course there is always the option of running the back driver all the way up and just using the enclosure shadow for your "XO". This is of course room & driver dependent. (the alphaTL -- pic a couple posts up -- runs this way)

dave
Look at the thor's XO
the 2 midbass are parallelled to the same filter


PS: what do you think about my idea above?
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Old 30th March 2003, 09:11 AM   #17
Variac is offline Variac  United States
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So the Thor is a 2 way then, because there is just one crossover point, even thought there are two bass drivers
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Old 30th March 2003, 11:20 AM   #18
Bricolo is offline Bricolo  France
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OK, I misuunderstood the 2.5 way

I thought it was only doubling the lower way
but, in fact, it's doubling the lower way's speaker, with another filter
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Old 31st March 2003, 03:20 AM   #19
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Default Replacement mains some DIYs for $300

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http://www.audioreview.com/Main+Spea..._1594crx.aspx:

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