Scan Speak 23W

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chrismercurio

Re: Scan Speak 23W
« Reply #20 on: 6 Dec 2007, 07:42 pm »
It must be very satisfying and fun to play with some of the worlds best tranducers.

Rick Craig

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Re: Scan Speak 23W
« Reply #21 on: 7 Dec 2007, 04:45 am »
It must be very satisfying and fun to play with some of the worlds best tranducers.

Yes it is quite enjoyable. I did some nearfield tests today with the 15" Aura and had the room buzzing and rattling  :icon_lol:.

Hult

Re: Scan Speak 23W
« Reply #22 on: 8 Dec 2007, 05:20 pm »
To use the 23W it in a three way, would you need to go active? Or could it work with two per side in parallel for what would still be moderately low sensitivity?

Thanks for your time,

C
I'm using the 23w in a 3 way system. The project isn't finished yet but in my tests i feeding them from a 400W amp. active due the 23w's very low sensitivity. The bass is tight, dry and very clean. The long throw and the 400W amp. make this system to go very low and compensate the drivers low sensitivity.
   

Imperial

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Re: Scan Speak 23W
« Reply #23 on: 8 Dec 2007, 09:28 pm »
Very nice there, you should post more about this speaker in the LAB/DIY forum Mr Hult! What is this 27 - 36 Liters chamber?
It looks very nice!  :P

Imperial

Hult

Re: Scan Speak 23W
« Reply #24 on: 9 Dec 2007, 01:03 am »
Very nice there, you should post more about this speaker in the LAB/DIY forum Mr Hult! What is this 27 - 36 Liters chamber?
It looks very nice!  :P

Imperial
Tanks Imperial

It's a 38 liters closed chamber for the bas and 12.5 liters closed for the midrange.
I's a eliptical chamber made of multiple mdf layers.
The project is far from finished. I'm working on a new 3'way active crossover. 
I've uploded som picturs of the construction in the gallery http://www.audiocircle.com/index.php?action=gallery;area=browse;user=44634

JoshK

Re: Scan Speak 23W
« Reply #25 on: 9 Dec 2007, 01:20 am »
What tweeter did you use?

chrismercurio

Re: Scan Speak 23W
« Reply #26 on: 9 Dec 2007, 01:22 am »
It looks like Vifa XT, Peerless Exclusive and an SS 23W.

C

Imperial

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Re: Scan Speak 23W
« Reply #27 on: 9 Dec 2007, 01:44 am »
Nice project indeed.
If going fully active, I know this is a bit excessive but.. you should take a look
at the BSS Audio FDS-366T OMNIDRIVE COMPACT plus heh, that has gotta be the
most complicated name for any active filter ever...  :duh:. But it has the
Whise filter teq built in. That is very good for the sub part...
It's about as bad ass as it gets this in 3-way active filters.

Imperial
« Last Edit: 9 Dec 2007, 02:40 pm by Imperial »

Hult

Re: Scan Speak 23W
« Reply #28 on: 9 Dec 2007, 02:44 pm »
Nice project indeed.
If going fully active, I know this is a bit excessive but.. you should take a look
at the BSS Audio FDS-366T OMNIDRIVE COMPACT plus heh, that has gotta be the
most complicated name for any active filter ever...  :duh:. But it has the
Whise filter teq built in. That is very good for the sub part...
It's about as bad ass as it gets this in 3-way active filters.

Imperial

The omnidrive could be a good solution but a bit too expensive for me. My eyes is now fixed on the Ground Sound DCN23 digital filter http://groundsound.com/dcn23.html If anybody have some experience with this filter please let me know. It's a 24bit 96Khz sample 3 channel filter as you can config from a PC. Because the Latency in digital filters nature I must use it for all channels and not only for the sub part. This is OK but I must have new amps for the mid/top drivers.     

Hult

chrismercurio

Re: Scan Speak 23W
« Reply #29 on: 10 Dec 2007, 05:03 am »
Rick,

I ran the numbers for sealed enclosure size for this driver and came up with:

23W   Volume (liters)   Cubic Feet   Cubic inches
q=.65   49.97   1.7646768   3049.36151
q=.707   36.11   1.275214714   2203.571025
q=.577   89.91   3.175146909   5486.653859


What do you think the optimum loading is? Or, what is your preference for loading as in the Linanite woofer array?

Thanks,

C

Rick Craig

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Re: Scan Speak 23W
« Reply #30 on: 11 Dec 2007, 01:14 am »
Rick,

I ran the numbers for sealed enclosure size for this driver and came up with:

23W   Volume (liters)   Cubic Feet   Cubic inches
q=.65   49.97   1.7646768   3049.36151
q=.707   36.11   1.275214714   2203.571025
q=.577   89.91   3.175146909   5486.653859


What do you think the optimum loading is? Or, what is your preference for loading as in the Linanite woofer array?

Thanks,

C

Lower "Q" alignments tend to drive the woofer really hard so I prefer to stay around .7 to .8 for the Q.