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Old 15th December 2003, 03:52 PM   #1
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Default suggestions for big speakers

My parents would like a pair of speakers to replace some old boom boxes they have that are about to die of old age! They want the same size, which is approx 1m high x 450mm x 350mm and are a 3 way TMWW with 10" woofers.

The budget is fairly modest, I would be aiming for AUD $500 - 1000 total cost.

Given the size it seems like an opportunity to go for a relatively high efficiency design. I'd like to achieve an F3 of 30 - 40 Hz, 2 or 3 way design using drivers preferably not difficult to get in Australia. Also drivers which are not overly difficult to design a crossover for, ie. relatively flat response, no nasty cone breakup!

All suggestions welcome
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Old 15th December 2003, 04:08 PM   #2
sreten is offline sreten  United Kingdom
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Are you going to reuse the cabinets? which is width and depth ?

sreten.
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Old 16th December 2003, 01:16 AM   #3
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Check out the Dai-1chi speakers at WES Components - these are very low cost and perform excellently - especially the 10" 120W polypropylene woofer (sp10-120).

Cheers
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Old 16th December 2003, 01:49 AM   #4
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My speakers cost like.. umm.. money....

Woofers - $160
tweeters - $64
Midranges - $20 (heh)
Towers - $90 (including finish)

http://home.iprimus.com.au/jlstanley...ers/Index.html

I am yet to do crossovers.. but these really aren't suitable for you.. they are WAY too hard to get a good amount of power into unless you have a 200watt into 8 ohm amp, or you bi/tri/quad(?) amp them...

thats $334 so far.. lol all I wanted was speakers that would rattle the windows, and they do this quite well.. when you give them enough power...

the woofers are Venom brand 8inch from Jaycar...
the tweeters are Peerless, which I got cheap...
the midranges are Digitor, from DickSmiths, I think they are total rubbish, but they were reduced from $50 a pair to $20, and they look really nice

the towers are 25mm MDF finished in gloss black... made at school, so all the materials were cheap..
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Old 16th December 2003, 05:55 AM   #5
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They are 960mm high x 420mm wide x 360mm deep. Constructed of particleboard 18mm - not very rigid, not braced, with cheap vinyl veneer - not what I would consider worth keeping.

Internal dimensions are 924 x 384 x 324 ... 115 litres

The size and shape fits in with their existing cabinet so they want it similar size. The only thing done well with these speakers IMO is the grille, and since I don't particularly like doing grilles, I'm inclined to keep the front dimensions the same and adjust the depth as required.

Centauri,
I had a look at the Dai Chi woofer. It looks like a reasonably smooth response, although it does seem to want a bigger box. Have you used this driver? Do you consider it suitable for hifi use? My parents are familiar with my speakers which have Vifa P17 drivers, and they may not be satisfied if the sound is significantly less refined. Any thoughts?

I looked at some of the tweeters at Wes Components but the cheaper ones didn't look too good. The Peerless HDS tweeter looks good or possibly a vifa tweeter.

The amp is an old Akai, quite a good amp with about 50 watts of power.

regards,
Paul
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Old 16th December 2003, 06:16 AM   #6
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never heard of a peerless HDS tweeter. They have a very good mid/woofer range that's called hds

The WA10 tweeter from peerless is extremely good value. I just read a test repport and the peerless beat many tweeters that cost x times as much.

Why not use a peerless CSX as mid/woofer? also fairly cheap and probably just as good or better then those Vifa's you used.
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Old 16th December 2003, 10:23 AM   #7
michael is offline michael  Australia
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Peerless 12" woofer (831857) $148.95
Vifa p13 $74.50
Vifa D26NC $40 at jaycar, usually $80 elsewhere

so for the pair would be $526.90, ths fits in nicely in your budget, and could be even less if you buy trade prices.
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Old 16th December 2003, 10:29 AM   #8
michael is offline michael  Australia
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oh i forgot to mention that the peerless woofer i suggested will provide a smooth response in either ported or sealed alignment
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Old 16th December 2003, 06:15 PM   #9
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by paulspencer
They are 960mm high x 420mm wide x 360mm deep. Constructed of particleboard 18mm - not very rigid, not braced, with cheap vinyl veneer - not what I would consider worth keeping.

Internal dimensions are 924 x 384 x 324 ... 115 litres

The size and shape fits in with their existing cabinet so they want it similar size. The only thing done well with these speakers IMO is the grille, and since I don't particularly like doing grilles, I'm inclined to keep the front dimensions the same and adjust the depth as required.

My parents are familiar with my speakers which have Vifa P17 drivers, and they may not be satisfied if the sound is significantly less refined. Any thoughts?

The amp is an old Akai, quite a good amp with about 50 watts of power.

regards,
Paul
115 litres is a whopping sized speaker.

If vifa appeals you could use this :

http://www.speakerbuilding.com/content/1030/index.php

possibly with a different bass driver, but similar R, L and sensitivity.

http://www.arsenal.net/speakers/ar/d...0Questions.htm

If it doesn't appeal you could do a lot worse than using the
crossover design.

sreten.
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Old 16th December 2003, 06:49 PM   #10
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As Al Bundy used to say "BIGGUNS" (I am sure that with nelson's sense of humor, he gets the joke) -- here's the J-LO design from PASSDIY -- it's big and uses one expensive driver:
http://www.passdiy.com/pdf/j-low.pdf

these are available from:
http://www.creativesound.ca/details.php?model=JX92S

i don't know where they're sold in the US, OZ, etc.
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