The Official Welton Pro Studio Mach II Speaker Owners Thread - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 14 Old 09-20-2014, 02:52 PM - Thread Starter
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The Official Welton Pro Studio Mach II Speaker Owners Thread

These absolutely huge speakers are abundant used, and no longer made. They were sold by Rent A Centers nationwide, and made in the Dallas, Texas area. They are NOT "white van speakers", as some may think. There were at least 2 Pro Studio Mach II Speaker models made, one with the square horn, and one with a Conical Horn.
I own the square ones, but am working on a deal to get some round horn ones, to see what I like better.
They are 52 inches tall, and sport a pair of pretty long throw 15 inch drivers in each speaker.

I too "dismissed" these things, after all, how could they be any good ?
But I came across a picture of the Pro Studio Mach 2 with the round horn, and I said to myself "WTF, that's a freaking low coloration Conical Horn, on a cheap speaker" !

Someone beat me to the conical horn ones, so I "settled" for the big square horn ones. This big square horn is larger then the horn in the Klipsch RF 7 series II

These speakers also have REAL Crossovers, with Mylar Capacitors, and non saturating air core coils!

So, I took them home, and hooked these guys up. Unequalized, I was not crazy about them. They had a quite shrill coloration on some female voices, and little bass, for such a big speaker. I added some bass and treble boost (3 db) and it was better.
Then, I ran the EZ Set automatic Equalizer on my Harman Kardon AVR 3600 receiver, and holy fuk!

I have watched both The Chronicles Of Riddick and Tranformers Revenge, and I have to tell you, it was stunning.
It has been a long time since I have had such a powerful, wide bandwidth speaker in my home.
I had to run them in phantom center channel mode, because my existing center can not keep up with the big speakers from Texas!

On music, they do not have the low coloration of my old B&W 801 Matrix speakers, nor the smoothness of my old Vandersteen 2CE Signatures, and they do not image like either of these speakers either.

But what they do is kick unadulterated ass, and do so in a highly musical, effortless way.

I have a Mitsubishi 73 inch HDTV, and they actually look kind of cool next to that big TV.
My listening room is 24 wide by 20 feet deep.
It has been awhile since I have felt my room shudder, and the Pro Studio Mach II Speakers will do exactly that.

These big speakers from Texas are a lot of fun . Perfect, they are not, but they make me want to listen to them.

Here are some pictures of both the square horn Pro Studio Mach II's, and the ones with the round Conical Horns.
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post #2 of 14 Old 09-20-2014, 10:19 PM - Thread Starter
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These seem to be another type of Welton Pro Studio Speakers, with conventional direct radiator drivers, vs horns
https://www.avsforum.com/forum/attach...272698&thumb=1
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post #3 of 14 Old 02-28-2015, 12:50 PM
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How would i know which one i have?
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post #4 of 14 Old 02-28-2015, 02:10 PM - Thread Starter
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Quote:
Originally Posted by Maryjo View Post
How would i know which one i have?
Post a picture of your Welton Pro Studio Speaker.
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post #5 of 14 Old 07-27-2015, 05:31 PM
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I have a set just like this set what are they worth? Do you know ?
Quote:
Originally Posted by Ka7niq View Post
These seem to be another type of Welton Pro Studio Speakers, with conventional direct radiator drivers, vs horns
https://www.avsforum.com/forum/attach...272698&thumb=1
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post #6 of 14 Old 12-15-2015, 12:25 AM
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I owned the square horned ones, Mach II's, they sure sounded awesome. I currently have a Klipsch Reference RF-3 II tower, center, surround setup with fully DeanG style upgraded crossover networks - better caps, coils, resistors, added very sturdy cabinet speaker bracing, and damped drivers and all cabinet resonance. The result is a much better sounding system than my old Weltons. This does make me wonder, however, how would the Weltons sound with some nice mod/upgrades? Better bracing, driver damping, and upgraded crossovers? Hmmmmm... I image these things would dominate.
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post #7 of 14 Old 02-24-2016, 04:00 PM
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mach2 sqaure horn

What are the ohms for these speakers?
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post #8 of 14 Old 01-18-2017, 06:42 PM
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Ohms

I hooked up an ohm meter to my ps302's and ps314y's. The 302's were at 10.2 ohm, and 314's were at 9.1 ohm. So, generally speaking theyre running 8 ohm. Running 80 watts to each they are LOUD!!!!! Clear, no distortion when cranked up. I just ordered a Behringer INuke 3000 watt rack amp to power them. Should really wake them up.
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post #9 of 14 Old 01-18-2017, 06:44 PM
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I should have clarified, the 302's are the mach ii.
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post #10 of 14 Old 01-18-2017, 06:45 PM
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Quote:
Originally Posted by roxspyder View Post
I hooked up an ohm meter to my ps302's and ps314y's. The 302's were at 10.2 ohm, and 314's were at 9.1 ohm. So, generally speaking theyre running 8 ohm. Running 80 watts to each they are LOUD!!!!! Clear, no distortion when cranked up. I just ordered a Behringer INuke 3000 watt rack amp to power them. Should really wake them up.
Dang fat fingers. ps413y not 314
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post #11 of 14 Old 10-24-2017, 10:10 AM
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First post and thought i would chime in!
Just scored a pair of ps304, single 15" with the conical horn and the rear tag says 160w normal, 300w max, and they are giant.

The classified poster said they would be 400w and my little JVC 6032vsl receiver only does 100w x 5 but after some testing it seems to be powering them fine with no other channels active, can get them to clip and max the front meters(really nice feature and matches the main out meters on my pioneer mixer) anyway, seems strange.

Recently moved my studio to my rather large unfinished basement and needed more mid and bass over what my little antique Tangent tm3s can do and these are perfect, may try the tangents as rears but so far am very impressed, they seem so efficient! 100w each and the entire house shakes.(all ive got for a sub is a clarion 8" in a tiny box powered by a half burnt out kenwood 350wmax car amp, building a 2000w ab powered 2x 12" sub right away.

Gonna give them some love but quiet impressed by the sound! pans and sweeps sound amazing and the bass is so deep for such little power.
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post #12 of 14 Old 06-05-2019, 08:17 AM
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Question A little Help...

I apologize in advance if I am incorrectly using this message board. I was given these speakers last night and was told that a horn may be compromised. Wanted to know where parts for these can be obtained and also background of these speakers? Thank you in advance for any help.
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post #13 of 14 Old 06-05-2019, 08:35 AM - Thread Starter
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Quote:
Originally Posted by tsc4870 View Post
I apologize in advance if I am incorrectly using this message board. I was given these speakers last night and was told that a horn may be compromised. Wanted to know where parts for these can be obtained and also background of these speakers? Thank you in advance for any help.
First, listen to both the horns, to be sure they are working or not.
If one or both are not working, remove it and take some pictures, so we can see what it is
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post #14 of 14 Old 08-13-2019, 07:17 PM
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Hi guys I'm new here and I have absolutely no experience with Welton. I'm just looking for any information I can get on these. The seller can't provide me with any information other than telling me that they are called "Pro Studio 15S"? I didn't figure that was the actual brand name so I did a Google lens search and came up with Welton. Are these in fact a Welton product? How about price? I was thinking it was a little high. Actually I was thinking it was higher than a Georgia pine but what do I know? Any assistance would be greatly appreciated.
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