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Multi-Way Conventional loudspeakers with crossovers

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Old 17th December 2014, 08:23 PM   #1
Scott L is offline Scott L  United States
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Default Are you ACTIVE ?? (multi-way)

I'm curious as to how many board members use active crossovers?

At least a 2 way?

How about 3 way systems ?

With a full blown 4 way, being of course, the cat's meow

I'm curious on this because, it seems to me, that around 1980 there were several active crossovers on the market, but these days, other than Marchand, not so much. Or am I missing something ?
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Old 17th December 2014, 08:28 PM   #2
BigE is offline BigE  Canada
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Yes. I use a large three way active system.

JBL ASB6118 ( 18" subs ), JBL AL6115 ( 15" low mid ), Altec 511B with 808-8a compression driver. Crossover points are 100Hz and 900 Hz, using a Behringer DCX2496.

Other options for crossovers exist, like Jriver and other PC software based crossovers. These can use things like USB to multiple D/A controllers ( Tascam 16x08, Focusrite 18i20 ) among other options.

Equalization is necessary.

Last edited by BigE; 17th December 2014 at 08:31 PM.
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Old 17th December 2014, 08:31 PM   #3
sreten is offline sreten  United Kingdom
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Hi,

Yes. Its simply not cost effective to go active with decent amplifiers.
Nevermind every active x/o needs to match the speakers.

Two way active is particularly not cost effective.

3 way active bass to mid and passive mid to treble with active EQ
its starts to make a lot more sense, but not easy to design.

rgds, sreten.
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Old 17th December 2014, 08:37 PM   #4
BigE is offline BigE  Canada
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It depends on what you think "cost effective" implies.

You can easily build 6 chip amps for less than $2k, probably more like $1500 that would suit quite a few speakers.

Is that too much?
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Old 17th December 2014, 08:47 PM   #5
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It's very cost effective if you are using the xo's on multiple systems.
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Old 17th December 2014, 08:54 PM   #6
Jonasz is offline Jonasz  Sweden
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Fully active 4-way SWMTMWS with MiniDSP. XLS12, SS26W, SS15W & Raal 70-20.

Sounds amazing and a lot easier to implement than a passive solution, cheaper too I would imagine, the passive crossovers would be more expensive than the drivers...

Another BIG advantage, at least for me, is that I can use the DSP/amp-package and play with filters in virtually any other system I want to test/play with. Then it's just to reconfigure the crossover again.
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Old 17th December 2014, 09:06 PM   #7
carolus is offline carolus  Belgium
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FYI.
Yes, (very) actif.
In DIM (since 1970):
5-way full horn system (2x5). EV Patrician IV / WE66A / Iwata 2" / Iwata 1" / Beyma
5 amps BJT (& DC servo/control) (2x5)
5 way actif X-over (2x5). 2x5 Actif analog (IC) filter type L-R, 24dB/oct.
Fr @ 250Hz/1200Hz/7000Hz/10kHz
(One musical note: with passive X-over ... a never ending tuning story)
It's music ... I like it ..
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Old 17th December 2014, 09:14 PM   #8
xrk971 is online now xrk971  United States
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Yes. MinDSP 2x4 and dual TPA3116D2 gives stereo 2-way. I also have second setup identical so I can run stereo 4-way. Works great and never going back to passives.

Cost is a lot less than you think when you factor infinite reuse for new projects without buying more components. $120 cost for 2-way stereo.

Click the image to open in full size.
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Old 17th December 2014, 09:29 PM   #9
Flaesh is offline Flaesh  Russian Federation
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2way at the moment.
15" mids + seos24
4*18" woofers is ordered.
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Old 17th December 2014, 09:50 PM   #10
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I'm 2.5 way active + 2 subs with eq/xo done in software with J River. Hypex and Class D audio kit amps that are high quality AND cost effective IMO.
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