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Multi-Way Conventional loudspeakers with crossovers

Open Source "Tower XL"
Open Source "Tower XL"
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Old 21st September 2018, 04:46 PM   #21
EarlK is offline EarlK  Canada
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From what I can see/interpret ( from the referenced poll in thread #2 & then the info contained within the first post of this thread );

> you weren't handed a mandate to impose a "flattish 8-ohm" impedance curve.

I'm curious as to where you believe a"green-light" came from ?
- ( to limit the speaker to a "flattish 8 ohm impedance curve" )


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Old 21st September 2018, 04:53 PM   #22
mordikai is online now mordikai  United States
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Have you read both the original and part two threads?
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Old 21st September 2018, 04:58 PM   #23
EarlK is offline EarlK  Canada
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I thought I had kept myself up-to-date regarding where things were going within both threads.

I'll go and re-read them sometime today.

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Old 21st September 2018, 05:26 PM   #24
mordikai is online now mordikai  United States
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It's no biggie, I'm not trying to be an a..hole. The term amp friendly is the term being used for an easy 8ohm load with higher sensitivity. It came up a few times in the threads and if we're going large it's doable. It was in response to the popularity of small class A amps around here.
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Old 21st September 2018, 05:33 PM   #25
ILikeFoodz is offline ILikeFoodz  United States
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What about two of these wired in series? Only 91 dB, but close.

Dayton Audio RS225-4
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Old 21st September 2018, 06:26 PM   #26
FredrikC is offline FredrikC  Norway
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What about 4 x dayton RS 225P for the bass?

That should yield about 95db @ 8ohm and go in a tower box of mentioned and costs less than 50% of the budget.

On the top many alternatives can be had:

High effiency dome in a wageuide (2.5way)
Compression driver in a small horn (2.5 way)
Dedicated mid + tweeter (3-way)
Maybe an large AMT like Dayton AMTPRO-4 (2.5 way)
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Old 21st September 2018, 06:27 PM   #27
FredrikC is offline FredrikC  Norway
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Quote:
Originally Posted by ILikeFoodz View Post
What about two of these wired in series? Only 91 dB, but close.

Dayton Audio RS225-4
Hehe, almost same as my sugestion, but the paper version is more efficient.

Seems like it 4ohm version is going out of stock tough: OPEN BOX Dayton Audio RS225P-4A 8" Reference Paper Woofer 4 Ohm. Not a problem if one goes with 4x of the 8ohm version each side.

Last edited by FredrikC; 21st September 2018 at 06:31 PM.
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Old 21st September 2018, 06:56 PM   #28
ILikeFoodz is offline ILikeFoodz  United States
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Yeah I was looking at those too. I picked the aluminum version because the low frequency extension might be a little easier to work with and the breakup seemed a little more benign. Either would likely be a solid option though!

Also, the paper isn't going out of stock - that's just for the open box version.
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Old 21st September 2018, 06:57 PM   #29
LORDSANSUI is offline LORDSANSUI  Brazil
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What about the Selenium 15WS600 for $184.99

Is there SPL target? the Xmax might be low.

Sensitivity = 97 dB SPL
Fs = 35 Hz
Vas = 215 L
Qts = 0,35
BL = 19,1 Tm
Xmax = 3,75 (Xlim = 21)
Pe = 450W AES

Selenium 15WS600 15" 600W Woofer

Just one more proposal:

Dayton Audio PA380-8 for $75.77

Sensitivity = 96,1 dB SPL
Fs = 31,6 Hz
Vas = 175 L
Qts = 0,27
BL = 25,8 Tm
Xmax = 5 (Xlim = ??)
Pe = 500W AES

Dayton Audio PA380-8 15" Pro Woofer
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Old 21st September 2018, 08:55 PM   #30
Aatto is offline Aatto  United States
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Open Source "Tower XL"
Quote:
Originally Posted by EarlK View Post
From what I can see/interpret ( from the referenced poll in thread #2 & then the info contained within the first post of this thread );

> you weren't handed a mandate to impose a "flattish 8-ohm" impedance curve.

I'm curious as to where you believe a"green-light" came from ?
- ( to limit the speaker to a "flattish 8 ohm impedance curve" )


yeah, as mordikai mentioned, we had long discussions over the types of speakers and specs in previous threads, and based on that and the feedbacks we included "amp friendly" options in last poll, 8 ohm and high sensitivity speaker options were targeted for people using tube and or Class A amps
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