Best 15in woofer for 4 way speakers? - diyAudio
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Old 1st June 2004, 03:04 AM   #1
sirtiff is offline sirtiff  Canada
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Default Best 15in woofer for 4 way speakers?

Hello,

I am trying to decide on a new pair of woofers to replace my ever-so-old pair from my unknown bookshelf speakers. I have 3.5 cu ft of room to work with, and was wondering between the following speakers:

1. Pyle PPA 15
2. Selenium 15PWCE
3. PIONEER A38GC50-54FQ

...any suggestions on other equivalent speakers that run cheap like these ones? Most of the above do say that they require >6 cu ft for VAS, but since most of my listening is done at lower volumes I figure i can cut the corner there, and preferably get a speaker with higher dB w/m.

Does anyone know a good speaker place to get these within Vancouver BC, Canada.... aside from speakercity.com They have some crazy notion that they are going to charge 150$ CAN for the Pyle's.

Also, if anyone has a pair of Cerwin's they want to throw my way instead... be my guest.
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Old 1st June 2004, 03:08 AM   #2
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You have 4-way bookshelf speakers that use a 15" driver???

What world am I living in!
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Old 1st June 2004, 08:08 AM   #3
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wouldnt a 12" have more lows in that Volume,or are you going for higher F3 but more SPL ?

Perhaps even more quality would be bought with a speaker of smaller size and similar price

Cheers!
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Old 1st June 2004, 09:59 AM   #4
sreten is offline sreten  United Kingdom
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According to the specs :

The selenium is not a good choice IMO, fb = 72Hz, Q = 1.2.

Niether is the Pyle IMO, fb = 55Hz, Q = 1.4.

Also note the massive difference in sensitivity of the two drivers, 8dB.

Its important that sensitivity is correct, I'd guess you need
around 95dB/W for speakers that are ~ 90dB/W midband.

The following appear to be suitable for sealed 3.5 cuft loading :

http://www.partsexpress.com/pe/showd...number=290-155
http://www.partsexpress.com/pe/showd...number=290-175
http://www.partsexpress.com/pe/showd...number=290-338

The Goldwood goes lower but has lower sensistivity.

The paper Pioneer is probably your best bet.

sreten.
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Old 1st June 2004, 10:33 AM   #5
sreten is offline sreten  United Kingdom
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note the 3 listed drivers

Pioneer poly :::95dB/W, Q=0.75, fb=58Hz.
Pioneer paper :96dB/W, Q=0.75, fb=60Hz.
Goldwood ::::::92dB/W, Q=0.75, fb=53Hz.

Also the Pioneer you mentioned is not suitable.
fb=75Hz, Q=1.1.

sreten.
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Old 1st June 2004, 12:24 PM   #6
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Default Do what ever you like my friend,

Its not for me or anybody to judge your taste in speakers,
You can do better am sure but everybody has to learn and if you want big 15 in a room go ahead, You know most studios i have been in have massive 15 in bass units on there walls, and am not talking a pair, more like 4 pairs of 15 inch bass units, In fact these companies like Dynaudio, ATC that do big studio installs love using 15! the bass output is huge but you need a hell of a strong amp to run these beast, I would honestly say listen to what you want to buy within your budget, thats not easy when most parts are on a shelf but the UK markt is much smaller and not competitive, have you given any thought to the cross overs? always left 10% of your budget for some quality parts, The cabnets internals are more inportant to me than the outter veener, the magic takes place inside, and a plain looking box can hide the work inside, boxes just need a good old tweaking to make them sound really good, I Good pair of 15 but need a massively powerful amplifier to run them are ATC SBC100s
82 litres per woofer with a twin port of 3 inches and 7 inches in lenght is very agreble, What kind of music do you listen to? as for mids i dont know if you can get Bandor in the USA but there quite well priced and the quality is very high, its hard to recommend a treble unit these days, but i like the old Dynaudio and the old Scan speaks, You can find some on Ebay at Good prices, you dont have to buy Brand spanking new drives, as most people take care of there speakers, Hopes this helps.
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Old 1st June 2004, 03:42 PM   #7
sreten is offline sreten  United Kingdom
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He simply wants to replace some drivers in an existing speaker,
and using drop-in replacements is entirely sensible IMO.

sreten.
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Old 1st June 2004, 03:53 PM   #8
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Default Smeg

I got you on FM, ok i think i can help him ,
I have a friend in LA on Ebay under the handle
ilovespeakers
He can get you these drivers cheap cheap cheaply!
I am talking half of what the list price on that parts express website and for a pair!
His P&P is a bit expensive but hes quick and honest.
Goldwood or Ballstic i think there called?
Well he can can get them for you.
He is a bit short in his e-mails so bare with him,
Hope this helps with your sub end anyways.
Troy
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Old 2nd June 2004, 04:16 AM   #9
sirtiff is offline sirtiff  Canada
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Default Thanks guys

Wow, thanks for the help guys....

Trust me, i'd love to pay for the 12inch, but since the cabinets are for 15, i gotta do them. I'm going to be doing a bit more research into prices now in my area, hopefully I can get one of the pairs you guys suggest for a reasonable price (the speakers came to a total of 50 bucks (CAN) but from a sound studio, so i trusted the guy knew what he was doing).

The ilovespeakers guy on ebay, unfortunatley does not have any stock advertised on ebay.

As for the amp, I'm using a Sony 5 channel STR-DE485, it think 80 W/chan with higher current. Not a bad unit, but i will probably be selling it once I'm done school to replace with my own unit (that is, once i'm done ensc320 ensc380 and ensc4xx). Hopefully Class A/b (that is, as much A as possible, lol)


Anyhoo thanks again for the expertice.
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Old 2nd June 2004, 11:14 AM   #10
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Default Ask and you will receive

Hi Tiff
That guy on Ebay, Ilovespeakers, always has something,
Ask him a questions from the EBay forum, he will reply,
I am sure he can help you out, You know there is always some local guys that know there stuff, so i guess your right if they can help you out, that could be best, This could be a chance for you to get a bestter sound than your last speaker system so think of it as on up grade.
Post some pictures would you!
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