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Need help understanding these specs please?

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Need help understanding these specs please?

Postby mikehende » Tue Jun 02, 2020 3:58 pm

Hey guys this is kinda tricky so please bear with me.

I am getting a pair of old Peavey MF1-X horns and thinking of using it for 2 separate purposes and will need to decide on which horn drivers to use. I would like to use the best option out of 3 drivers for both applications hence the difficulty.

So first application, I have a pair of old Peavey SP-2Ti like this:

https://www.ebay.com/itm/Peavey-SP-2TI- ... SwwcJedT1A

I get the sound I need from them only issue is I am not getting enough from the horn so I am thinking of bypassing the internal horn and using the peavey mf1-x instead which are larger horns. If this will work then I will need to decide on which drivers to use with those horns.

I am looking at this driver:

https://www.gfworks.jp/talkbox/image/18 ... ngData.pdf

and this:

https://www.atlasied.com/pd60at

and this which I already have standing by:

https://jblpro.com/en/products/d220-ti

Can you guys advise on which of the 3 drivers will give me more upper highs please?
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Re: Need help understanding these specs please?

Postby mikehende » Tue Jun 02, 2020 5:32 pm

I have made a screenshot of all 3 driver's specs here for easier reference with the name of each driver at the top of each individual screenshot:

https://i.postimg.cc/ZRqjkP2c/Screen-Sh ... -22-PM.png
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Re: Need help understanding these specs please?

Postby resistorman » Tue Jun 02, 2020 7:21 pm

Just looking at the drivers and setting aside other issues, the JBL would be the obvious choice. The Atlas is a 70volt transformer type and really, they're only good for 60's skating rinks. EV's are mehhh.

Now to the other stuff. What aren't you getting from the original cabs? Are the diaphragms in good shape? Are you bi-amping? If not, you really should be with this old tech... it makes a huge difference.

If it's high frequencies you're after, the bigger horns won't help. They're bigger to handle lower frequencies, down into the mids. If you're looking for more mids, that might help.

Anyhow, you need to tell us what you are missing.
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Re: Need help understanding these specs please?

Postby mikehende » Tue Jun 02, 2020 7:30 pm

Thanks.

Yes I am bi-amping but I am not getting as much powerful and crips highs from them as I would like. Yes, they are new original drivers after I had blown the original ones and could not get replacement diaphragms. So I am seeking some option for this.

I was thinking maybe the horn size is too small to give me enough of what I am seeking. I had thought of maybe using bullet tweeters instead of horns but those give a different type of highs which are more noise than anything else in my opinion.

Just curios, can you also tell me why the Atlas drivers are for skating rinks please?
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Re: Need help understanding these specs please?

Postby resistorman » Tue Jun 02, 2020 9:59 pm

Well, I was being a tad facetious because that’s what they had back in the 60’s, but Atlas equipment is designed for speech, and the model you listed is designed for ballfields and such.

You need the horns for midrange, so you might consider adding bullets and going tri-amped.
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Re: Need help understanding these specs please?

Postby James Perrett » Wed Jun 03, 2020 12:40 am

The only Peaveys that I've ever used with decent high end was the big HDH system that they had at Sterns nightclub near Worthing and later at the Wedgewood Rooms in Southsea. One touring engineer said it was the best sounding Peavey system in the country. As I remember it, they used the same HF driver as you have in the SP2 but they had 4 of them feeding one horn.

Personally I'd suggest accepting that the SP2 is 40 years out of date and moving on to something better.
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Re: Need help understanding these specs please?

Postby mikehende » Wed Jun 03, 2020 2:21 pm

I am thinking instead of going with the Peavey Mf1-x horn to try a bi-radial horn like these as it comes recommended from a friend who tried them in DIY EAW KF 850 Tops. He said the metal horn material also makes a difference from the fiberglass horns to begin with.

https://www.parts-express.com/bc-me60-2 ... t--294-624

or this one:

https://usspeaker.com/jbl%202352-1.htm

As for moving on to something else, I like the tone of the SP2, I have friends with modern expensive RCF and JBL tops [powered] and I don't like the tones of them. I am thinking any new 15" 2-way tops will have a similar tone.
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Re: Need help understanding these specs please?

Postby mikehende » Wed Jun 03, 2020 8:22 pm

Or maybe just simply add a good pair of tweeters to the exiting horn?
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Re: Need help understanding these specs please?

Postby resistorman » Thu Jun 04, 2020 12:50 am

resistorman wrote:Well, I was being a tad facetious because that’s what they had back in the 60’s, but Atlas equipment is designed for speech, and the model you listed is designed for ballfields and such.

You need the horns for midrange, so you might consider adding bullets and going tri-amped.
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Re: Need help understanding these specs please?

Postby mikehende » Thu Jun 04, 2020 12:52 pm

So I've narrowed down to 5 tweeters guys, can I trouble you guys to tell me in which order 1-5 which tweeter I should try to get please? This is for my home system in a one car garage.

https://www.bcspeakers.com/en/products/tweeter

https://www.parts-express.com/eminence- ... uctDetails

https://www.parts-express.com/faitalpro ... --294-1000

https://reverb.com/item/32374455-beyma- ... iDEALw_wcB

https://www.ebay.com/p/13015428973
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Re: Need help understanding these specs please?

Postby resistorman » Thu Jun 04, 2020 4:15 pm

They all look good, but you can’t beat the price for the JBL’s! I hadn’t realized that JBL had bought Selenium, which was a company out of Brazil, I think. I certainly wouldn’t be spending 172 each on this, even though Faital is a great speaker.
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Re: Need help understanding these specs please?

Postby mikehende » Thu Jun 04, 2020 4:29 pm

Thanks, I remember that Selenium and Fane tweeters were very popular here in the 90s.
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