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Multi-Way Conventional loudspeakers with crossovers

Need help selecting between two budget 10" drivers
Need help selecting between two budget 10" drivers
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Old 16th March 2005, 06:49 PM   #1
percy is offline percy  United States
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Location: CA
Default Need help selecting between two budget 10" drivers

Dayton classic 10". 295-315 @ www.partsexpress.com

and

MCM 55-1945 @ www.mcminone.com

T/S parms for the 55-1945 are:-

Qms 3.6
Qes .35
Qts .35
Vas 110 lt
Fs 26hz
Mag Wt 35oz
Xmax 5.0mm
SPL 89db
Watts 70W, 105W peak

This is for a 1.3 cu.ft vented(but could be sealed if needed) enclosure for a 3-way.

There are a couple of projects using the Dayton but I cant find any information on the MCM. Not quite sure if its intended for subwoofer duty or driver(woofer) duty. The specs look good but I have no idea how it sounds or the frequency response or the build quality. Although the heavier magnet and higer Qms/lower Qes make it attractive.

Any inputs appreciated! Thanks!
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Old 16th March 2005, 07:38 PM   #2
ShinOBIWAN is offline ShinOBIWAN  United Kingdom
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Location: UK
Where's the TS for the Dayton?

If you want a sub thats good for ported use, the general concesus is that the lower Qts the better.

Using the good old FS/Qes you can determine a rough guide for suitability.

In this case 26(Fs)/ 0.35(Qes) = 74

What does 74 mean? Well any number under 50 is an excellent candidate for sealed application, a number over 100 is great for ported. Anything inbetween like this could be considered for either depending on requirements.

Personally I'd go with sealed or a TL but that's not to say that reflex isn't good when done well. Just my preference really.
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Old 16th March 2005, 07:50 PM   #3
percy is offline percy  United States
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Join Date: Apr 2004
Location: CA
http://www.partsexpress.com/pe/pshow...number=295-315

http://www.partsexpress.com/pdf/295-315.pdf

The TS of the mcm dont add up. One or more of the qms, qes or qts is wrong. I have an email into mcm inquiring about that.

I'll probably try both (sealed/vented) and see what I like.
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Old 16th March 2005, 10:28 PM   #4
RJ is offline RJ  United States
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If the qes is correct for the MCM than the qts is .319

MCM
Closed - Box size = 1 cu. ft. F3 = 62 hz.
Ported - size = 1.7 cu. ft. F3 = 42.5 hz.

Dayton
Closed - Box size = 1.2 cu. ft. F3 = 53 hz.
Ported - size = 2.2 cu. ft. F3 = 30 hz.
Done with WinIsd.
Win Isd program is free;
http://www.linearteam.dk/default.aspx?pageid=winisd
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