10" EVM Loudspeakers

Here is a photo of the rear of my 210RD100-EVM. This is one of the auction photos taken before I owned it.
I post it here simply so you can see what the 10" Electro-Voice drivers look like. As far as I can see, they don't say "EV" on them anywhere.
The giveaways (besides the sound qualities) are the cast aluminum magnet heatsink & frame along with the large 2.5" (I think) voice coil.
These babies aren't "warm & cuddly", but "LOUD & Proud"! I could peel paint with these speakers... they would probably take 250 watts and barely work up a sweat! Heavy buggers, too.
Steve

I'm not sure if I like Electro Voice speakers..
They kinda punch you in the face, and pickup more mistakes? on the guitar..
Your amp here looks like it would sound awesome! because its Music Man!
ps.lets see the front! also I'd like to see more pics of MM amps. tks

Steve - Haven't been to your site in a while, the new message board is a nice upgrade. The EV that came with my RD112-50 does not have the ridges that are apparent on the back of your speakers, perhaps EV designed the 10's differently from the 12's? I replaced that speaker first with a JBL D120F, but currently with a Celestion Vintage 30. At this point I'm happiest with the Celestion as it seems to accentuate the things I like about the MM and downplays the timbral elements that I dislike. It also makes it lighter. It's not my favorite, but it's still a great, light utility amp.

Glad you made it back!
You are correct, the EVM 12" speakers don't look anything the EVM 10" drivers! The EVM 12" speakers I have seen have a really large diameter magnet structure devoid of any ridges or heatsinking.
Here is a photo (See next Post below) of a Mesa "Black Shadow", which is really just an Electro-Voice EVM (it even says so on the label!)
I think they added heatsink fins on the 10" to increase heatsink surface area on the relatively small diameter magnet structure.
I have a couple of external cabinets with Celestion Vintage 30 speakers in them and they sound great! Less filling too (lightweight)!
(Message edited by admin on September 28, 2002)
(Message edited by admin on September 28, 2002)

Here is the photo of the 12" Electro-Voice EVM (in Mesa Engineering "Black Shadow" clothing):
Steve

Oh yeah, that's the bad boy. The one from my RD112-50 looks just like that, except it's completely black and there's no label on the magnet. Even the solderless terminals are the same. In fact, the pinwale tolex on your amp looks exactly like my amp also, I wonder if you've spilled as much coffee on yours as I have on mine.

That rear photo of my 210RD-100-EVM above was taken by the previous owner, so what you see there is how I received it... except it actually looks DIRTIER than that in real life!
I think digital cameras leave off about 10 pounds.... of dirt and gunk!
Here is the front of it:
This amp is so dirty, stained and beat-up I plan to totally restore it but cover it in a Fender cream Tolex with wheat grill cloth (just to be different). Maybe this winter... I bought it as a project amp after all!
Steve

Had a gig last night, originally scheduled to be out on the waterside deck of a local nightclub. I hate playing outside, so I figured it'd be a good time to use my 77 lb red knob Twin, as my Deluxe Reverb doesn't cut it outside and the 4 piece R&B band I was playing with would afford me a lot of solos. As an after thought I threw my Celestion-lightened RD112-50 into my trunk. Sure enough, it rained and we set up inside. Thank god I had the pinwale boy with me, the volume level of the Twin would've gotten me tossed into the harbor. Later - DM

hi guys, carl from AUS here.
i need to know about some speakers for my 212RH cab, go new speakers or rebuild the old ones?
this is the ext cab for my 210HD130 which has MM speakers (alnico) how do i tell ? , now when i run the ext cab with the 210hd130 do i flick my amp to 8 ohm or leave it on 4 which is where it is in combo mode?
thankyou in advance.

I have a very similar question to Aussie's
I have a 212RH One-Thirty cab. What brand / make / whatever speakers were originally installed in these units? the serial # is S01833. I am going to build myself a second cab for the amp (A MM Sixty Five) but I need some speaker information before I do the dirty deed.
Any help is appreciated.

From the same question elsewhere on this site:
You can decode speaker codes by looking at the info here:http://www.webervst.com/codes.html
67-7548 should decode as:
67 = Eminence (Manufacturer)
7548 = Manufactured the 48th week of 1975
12GPGN8F would be the model number of the speaker (probably a 12", 8-ohm from the digits used). The letters probably designate the type of frame (basket), the type and size of the voice coil, and the power rating.
Hardness of a tube is how easy or difficult it is to overload the tube. Some tubes are softer (cannot take much input signal before overloading) and some are harder (can be driven harder before overload occurs).
Consult the Groove Tubes web site for a detailed explanation of their numeric system.

researching my 210 rd 100,enjoying your site keep up!}

hello
carl here you all know me by now
my friend just purchased an awesome 210"130(with 12 ax7)
it has an aftermarket effcts loop and line out fitted
the question...
it also has altec speakers
are these original speakers???
they re beefier and louder than my eminence babys
thanks all
aussie boy

To my knowledge, Altec loudspeakers were never used as factory-supplied loudspeakers in Music Man amps. Of course, it could have been a special order, but is more likely to have been an aftermarket replacement.

cheers Kennedy,
your input is very much appreciated
just a quick think - this amp with the altecs - i swear it is 500 times louder than my amp with the eminence...
do the speakers output more - or is my amp soft for a bizarre reason.

please read above question

This is probably the speaker efficiency at work (at least partially). If Speaker "A" is 3dB more efficient than Speaker "B", then Speaker "A" will play twice as loud as Speaker "B" (assuming the impedance and amp power levels are identical).
Altecs are known for their efficiency ratings, so there's that part of it. The other part could be the amps themselves. An amp with old, tired output tubes, dried-out filter capacitors and leaky rectifiers in the power supply can reduce the power supply voltage which will limit the maximum power the amp can deliver to the speakers.
For example, I have an old HD-130 head with all of the above problems. This amp only has about 640V of high-voltage (it should be over 700V) and the low voltage preamp supply is down about 20% as well. This amp overloads early and only develops about 88-90 watts rms of output power (High Power setting) instead of its' rating of 130 Watts rms.

Darn Steve, you shouldn't even have an old head like that. You should sell it too me cheap so you don't have to bother with it!(Kidding). I have one in the basement now that I'm working on that I screwed up some time ago and I built a 2-10 body for it so it's a combo now. Will make a good companion for my 2-10 65. Mike.

my amp still sounds better though
its warmer and cleaner
cheers for the reply

Hey there. I currently have an amp similar to the photo posted above. It's a 210-75 with the ivory tolex. Anyhow, the speakers in it look the same as the photo and only say "s1" and "s2" on them. Are these stock speakers? any thoughts on what the wattage rating on these are or any info? Thanks!

The cream/ivory tolex models came from the factory with the "premium" Electro-Voice EVM speakers as shown in the photos above.
These speakers could be special-ordered in a standard black tolex amp, but the cream tolex models came with the EVMs as standard and were priced quite a bit higher than their black counterparts. (Look at the model chart and price lists posted elsewhere on this site.)
These drivers were rated for at least 100 watts each, probably closer to 150 watts! They are overkill for the power of most of the Music Man amps that they came in!
Steve

Hey guys I was just turned on to this message board by a fellow ebayer. I watched a HD130-410 sell for under $300 on ebay not counting shipping. I was watching the auction because I have been considering selling the exact same amp, but was disheartened by the low price. I love the amp but hate the speakers, I was hoping to unload the 410 and buy a HD 130 head. Since the 410's aren't fetching that much I guess I'll just hold on to it. I tried loading some webers I picked up into it but wasn't very happy with them either. I have some old JBL 12's that absolutly bring the amp to life. I guess my problem is dragging extention speakers with me, when I should be able to just bring the 410 combo. I hear the celestion V10s that are out of production are nice. Anyone have any suggestions?

any chance you could carefully remove the 4x10 baffle board and speakers, and make your own (2 12" maybe, or 2 10" and 1 12" ) baffle board?
I knew a guy who used to have a 410 like me, and he made a custom baffle board so he could have 2 10s and 1 12, and he liked the sound a lot better. Then later, you still have the old baffle board so if the value goes up you can put it back together and sell as original

cerebral, I had concidered that but would rather put the effort into maybe some decent 10's. I say I tried some weber's, but there are some many different types that it would get pretty expensive experimenting. The weber's I put in were loud, chimey and punchy but they lacked bringing out the true character and tone that I get from the JBL's. I would compare the weber's to EV's. They were the high power ceramic Thames model. Am I the only one that feel the original MM's speakers fall short as compared to the potential of this amp?

Dunno, I have a 410 but it's a sixty five - so it has some sort of ceramic magnet speakers. I am quite fond of them, but of course they were prone to blowing so the 130's had more beefy speakers from what i understand.

I have a 4-12" speaker cabinet that I don't like the way it sounds with my Musicman HD150 head.
I'm thinking of changing the speakers, what brand of speakers would you recommend I buy?
thx
dpm

I would look into something along the lines of a Celestion 40 watt in 16 ohm. That way you can wire them all in parallel and get enough wattage coverage to handle the 150 and still "mush" out a little. Just my 2c's worth. Mike.

These speakers do not look like EVs, they look like JBLs...