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your take on some woofers

#22
hired hand said:
I follow what you are saying up to a point. Each pair in series is 16 ohms. But there are 4 pairs of 16 ohms. 16 x 4 pairs = 64ohms total resistance divided by 8 speakers = 8 ohms.
Like I say, I would like to put a DMM on the speaker cable of that diagram. :hmm:
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I know its 4 ohms, I know it. It was (8+8)||(8+8)||(8+8)||(8+8) or some mathematical formula. Irregardless of the impedance, whats your take on these speakers?

If you don't like them, suggest another low cost driver then, I really need to get this cab back together.

Edit: Figured out why it was coming in your head as 8 ohms. You're adding the series of speakers as 8 ohms, but they're really four 16 ohm sets. You wire four 16 ohm speakers in parallel, you get 4 ohms.
 
#23
Here's one more suggestion, although the MCM's are still going to be hard to beat for the price. As Bill F. mentioned earlier in regards to those:

...For the price you probably won't find anything better.

Check out these guys. They carry a bunch of stuff for restoring old Ampegs. They claim these are a good low cost replacement for the SVT 8x10. They're even 32 ohms so that'll satisfy those who like the idea that an 8x10 should be built with 8 paralleled 32-ohm speakers

[Invalid or Expired Link Removed]

I don't know anything more about these speakers, but give these guys a call and see what they say.
 
#27
mrkreuzschlitz said:
I thought about getting the fliptops, but thats still almost twice the price, so who knows if I'll be able to do it. Also, for $600, I could just get some Eminence speakers, and handle twice the power.
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That's true. Once you start getting in that price range, other (better) options start appearing like picking up a decent used Ampeg 8x10. We can keep speculating here and expressing FUD (fear, uncertainty, and doubt) but it won't help you. I still stand by my opinion that the MCM's are the best option for the price. Will it be as good as an Eden, Epifani, Bergantino? No. Will it be as good as an Ampeg 8x10? Maybe. Will it suck? I doubt it. Will it be useable? Sure. Right now without any speakers, you're cab isn't worth much. For about $250 you can have a useable cabinet that'll get you through for awhile. If you don't like it, you could sell it and at least get your money back. Seems like the risk is pretty low.
 
#28
gerryjazzman said:
That's true. Once you start getting in that price range, other (better) options start appearing like picking up a decent used Ampeg 8x10. We can keep speculating here and expressing FUD (fear, uncertainty, and doubt) but it won't help you. I still stand by my opinion that the MCM's are the best option for the price. Will it be as good as an Eden, Epifani, Bergantino? No. Will it be as good as an Ampeg 8x10? Maybe. Will it suck? I doubt it. Will it be useable? Sure. Right now without any speakers, you're cab isn't worth much. For about $250 you can have a useable cabinet that'll get you through for awhile. If you don't like it, you could sell it and at least get your money back. Seems like the risk is pretty low.
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Thats exactly what I was thinking. I mean I wanted to know if they'd sound around as good as a decent 8x10. I was contemplating an Ampeg 810, but I don't like the 800 watt power handling (if I bought it new, I could spend a few hundred more and get a GS412 with 30% more handling) and the reputation of the MIV Ampegs.

Thanks for all your feedback so far. I'll go ahead and shoot with the MCM speakers, and worst case scenario is it'll end up on Craigslist after I get a new cab. Heck, I'm thinking of keeping the cab even after a new one so I can run two 8x10's at big shows. Also, I'm gonna replace the individual speaker grills with a grill cloth and replace the carpet with tolex. Anybody know where to find grill cloth frame "blueprints?"
 
#30
mrkreuzschlitz said:
handle twice the power.
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Moot. A drivers Pe rating only tells you how much juice it takes to cook the voice coil. It says nothing about how loud they'll go. BTW, the Jensen Mods have a very low output capability, and mediocre response. OK as guitar drivers, horrible on bass. They may have been OK by 1965 standards, but certainly not by today's.
If it was me I'd dump the cab entirely and get a pair of good 2x10s, which if loaded with good drivers will easily outdo an 8x10 loaded with junk.
 
#34
Well, good news I believe. My cab is about the same size as the Ampeg fridge, just a couple of inches deeper. Do you guys think it'll be worth saving? If I do, I'm going to re line it with the mattress topper from walmart or the polyester batting (which is better, in your opinion), re-tolex it, all that stuff.

So, would it be worth saving with the MCM drivers, or even something else?
 
#35
yeah, never cheat yourself on speakers or you'll kick yourself. If you spend $200 on crappy speakers when you could have spent $400 on awesome ones, you'll hate yourself cause then you'll hate your cab every time you play, plus still have to spend another $400 to replace them.

I have used Eminence bass speakers for years. I have two of the 300w Eminence 15s (deltas i think) in my cab for 6 years now, still kicking ass and i run that cab at 500-600w all the time.

Eminence makes a 32ohm 10", that's what you want to go for. www.partsexpress.com dont forget you'll get a break on quantity pricing for 8 of them.

Also- do some research on wiring- you'll get different sounds based on series/parallel and parallel/series setups. really! It made a huge difference in my 4x12.
 
#38
+1 on BLT Sound. Not going to get much better prices elsewhere. If you really want to go Eminence, there are three possiblities that I see that are at the reasonable end of the price range:

- Beta 10
- BP102 (maybe a bit shy on upper midrange but maybe that's OK. pretty potent otherwise)
- Basslite S2010 if you want to go neo.

A set if 8 Beta 10s will set you back about $475, the others somewhere around $525 - $550. If those prices are within what you want to spend, go for it. My personal choice would be the S2010's but then again I'd want to reduce weight as much as possible. Anything else that is suitable (eg. Deltalite II 2510) are going to be upwards in cost from there.
 
#39
gerryjazzman said:
- Beta 10
- BP102 (maybe a bit shy on upper midrange but maybe that's OK. pretty potent otherwise)
- Basslite S2010 if you want to go neo.
Click to expand...
None of those are well suited to a sealed cab. The Alpha 10 is, and has specs similar to that of the Ampeg driver, except for the impedance.
 
#40
mrkreuzschlitz said:
I did think of that. Anybody have the internal size of Ampeg cabs? I'm pretty sure mine's around the same size, it just seems deeper.
Click to expand...

The mighty svt cab has dimensions of 26x48x16, its divided into 4 separate sealed chambers, each at about 2.3 cu ft.

I wonder if those mcm drivers aren't actually made by Eminence. I think that its a good way to go.

Here are the specs from an eminence replacement for the svt cab I had some experience with:

Here are the T/S parameters for 10324A:

05-RE OHMS 27.24 13-FS HZ 55.97
06-LE MH 3.07 14-MMS GMS 24.60
07-QM 5.56 15-CMS mm/N .3284
08-QE .630 16-RMS NS/M 1.5563
09-QT .560 17-VAS LTRS 54.86
10-XMAX MM 4.70 18-SD SCM 344.88
11-BL TM 19.38 19-EBP 89.1
12-EFF % 1.48 20-SPL dB 93.7

Anyone know the specs for the mcm?
 

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