im still leaning on buying 8 of em and giving them a try ! and its actually going in my back up cab , so i wont be using it every week anyway .
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jensen mod 32 ohm 10 for svt . opinions needed please !
- Thread starter jarrod cunningham
- Start date
HI
Sorry, the delay. But I asked the guy, if it's ok to publish the specs. He asked not to show his name. Plus I was busy with gigs etc. I don't naturally take any responsibility and the parameters for old SVT speaker are "as is".
Here's his PM to me.
***************************************
Here's what I measured (broken-in vintage speaker):
Fs=59.37 Hz
qms=3.775
qes=1.215
qts=0.919
VAS=44.4 L
Re=26.10
SPL=90.87
Mms=29.02 grams
Here are the ideal factory specs:
Fs=56 Hz
qms=5.56
qes=0.63
qts=0.56
VAS=54.9 L
Re=27.24
SPL=93.7
Mms=24.6 grams
Enjoy!
_________
Sorry, the delay. But I asked the guy, if it's ok to publish the specs. He asked not to show his name. Plus I was busy with gigs etc. I don't naturally take any responsibility and the parameters for old SVT speaker are "as is".
Here's his PM to me.
***************************************
Here's what I measured (broken-in vintage speaker):
Fs=59.37 Hz
qms=3.775
qes=1.215
qts=0.919
VAS=44.4 L
Re=26.10
SPL=90.87
Mms=29.02 grams
Here are the ideal factory specs:
Fs=56 Hz
qms=5.56
qes=0.63
qts=0.56
VAS=54.9 L
Re=27.24
SPL=93.7
Mms=24.6 grams
Enjoy!
_________
billfitzmaurice
Commercial User
- Sep 15, 2004
- 16,860
- 278
- 76
- Disclosures
- Owner, Bill Fitzmaurice Loudspeaker Design
The parameter that is most important, xmax, is the one that's missing. Xmax is what determines the limit of cone excursion, and it's excursion that limits output and power handling. It would be nice to know exactly which driver this represents from 39 years of SVT history, but without the all important xmax figure the point is moot.
I played drums next to a silverface Fender Bassman Ten loaded with Jensen MOD 10/50s @ 32 ohms. 50 (tube) watts into a 4x10. IMO it was full and loud.
I'm revisiting this thread because I'm thinking of getting a set of four for my sealed Fender BXR 410 cab. Yes I am thinking of them because they're cheap SVT replacements. I have no doubt that the performance of the Eminence would be very good indeed, but they are 2/3 again the price and this project doesn't warrant the extra cost.
If I do it, I'll post a note here with the results. I'm still on the fence with regard to Bill F's comments because I don't dismiss them out of hand. I especially like the "high pass some MOD 10's and run some Eminence BP102's full range" idea.
KO
Just a note that I installed a set of eight ohm Mod 10's (50 watt version) into the BXR 410 cab and I think they sound pretty decent. Nice sensitivity. Not an enormous amount of low end, but plenty for my goals.
I haven't had much time playing through them yet and they definitely have not been on a gig, but they live up to my memory of playing a night of drums next to a 50 watt tube head into a 4x10 loaded with them: That 50 watts into those speakers was putting out plenty of sound and a good tone for a moderately loud band - unmic'd drums, tube combo amps for the guitarists - no one trying particularly hard to be quiet, but no volume wars going on - comfortable band levels.
All in all, I think I've turned a fairly crappy cab into something I can use. I think I'm going to be quite happy with them.
FWIW, I went with eight ohm to hedge my bets. If the cab didn't work out I could probably find a use for four, eight ohm speakers. Four 32 ohm speakers would have less utility if the whole thing hadn't worked out.
KO
I haven't had much time playing through them yet and they definitely have not been on a gig, but they live up to my memory of playing a night of drums next to a 50 watt tube head into a 4x10 loaded with them: That 50 watts into those speakers was putting out plenty of sound and a good tone for a moderately loud band - unmic'd drums, tube combo amps for the guitarists - no one trying particularly hard to be quiet, but no volume wars going on - comfortable band levels.
All in all, I think I've turned a fairly crappy cab into something I can use. I think I'm going to be quite happy with them.
FWIW, I went with eight ohm to hedge my bets. If the cab didn't work out I could probably find a use for four, eight ohm speakers. Four 32 ohm speakers would have less utility if the whole thing hadn't worked out.
KO
with reading this and a little research. Mod seem closer to old general used speakers of the 60's and early 70's. the Eminence is the modern sounding svt's. The traynor head was designed to work with stiff low out put speakers. they were 5 dollar speakers. I wonder if they even determined between guitar and bass speakers, or did they just go by the specs alone with out a title?
I'm just interested to get close to the OG for some Punk. Since most just used the cheapest loudest stuff they could get. that seems to be the mod speaker in modern day.
BILL & JIMMY Is that a good summary and question?
I'm just interested to get close to the OG for some Punk. Since most just used the cheapest loudest stuff they could get. that seems to be the mod speaker in modern day.
BILL & JIMMY Is that a good summary and question?
I don't know if I really understand your question but Dee Dee Ramone used SVT's with SVT speakers in them as did many of the other punk bands of those days. Mods seems closer to guitar speakers to me. I have owned a very early SVT and it had bass speakers from the factory, were long throw woofers with big voice coils and they could go low, the SVT speakers of the later 70's sounded better to me and could definitely handle more power so in other words they were cleaner sounding. Tube amp distortion to a certain degree sounds good, speaker distortion beyond just a little bit doesn't.
according Bill the 69 speakers were Guitar speakers. the later were bass speakers. The OEM speakers for traynor which were made in the same era- the owner just said they were general speakers not guitar speakers. I think Mod are meant to be a general speaker like the traynor, I wonder if the 69 speakers were just general speakers not guitar speakers. If that is the case and a person wants the earlier sound. the mods are a good speaker for that.
I've only found a few 810 replacements- the MODs- Eminence - and the Webbers Speakers.
As far as the Ramones. I thought he used the earlier ampegs for the first album, and just dimed that stuff.. lol it prolly don't matter when you play that loud.
Does that make sense?
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If you look at ads for the original '69 it was sold with two 8x10 to handle the 300w head without farting out, because the generic musical instrument speakers excursion was too short for one cab alone to do the job. The Jensen Mod 10 50 xmax is 1.5 mm. It would take two of them to match the low end output of one Legend CA-10, three of them to match one Legend B810 or Basslite SC10.
You just have to ask in the right place. [Invalid or Expired Link Removed]
The whole idea behind using Mods in an 810 cab was to add some brightness to the early 2000's 810e cabs, which were darker and muddier sounding than previous and subsequent 810's. Bill suggested making the top two speakers Mods to add it back. But it does grossly lower your power handling down to 70's standards, which is about 250w, vs the 800w the modern cabs can do before you even reach fartout. Since you're playing punk, which often requires hefty volume, I'd stick with the modern speakers.
I read the whole thread, mine didn't have guitar speakers I don't know where he got that, guitar speakers wouldn't have lasted 10 minutes with that amp, you could see the speakers moving in and out at least an inch, guitar speakers would have been blown right out of the basket.
The louder you play the more good equipment matters. The 69 speakers were designed to go into what was then the most powerful bass amp made, Ampeg would have been changing them out all the time losing money on warrantee claims if they were only guitar speakers. Check out Fear in the Decline of Western Civilization, their bass player used a double SVT set up live and most of the guitar players back then in punk bands used Marshalls, that was the best going back andsome still think it is the best. I don't think punk bands tried purposely to have a krappy sound at least the original late 70's early 80's bands, many of them had a great sound. Sex Pistols, Ramones, Fear etc.
The original speakers were specially designed woofers, I don't know where Bill got that idea, generic speakers wouldn't have lasted 10 minutes in an SVT, I had one, a 69-70 and they were long throw woofers made to go into a sealed cab. I have two early 70's flatback cabs right now with original speakers and they sound great and go nice and low. Saying early SVT's had guitar speakers is BS.
It is and it isn't. Yes, they were designed specifically for the SVT, but the SVT/810 was designed as a dual-purpose rig, although definitely with an eye toward the bassist, and the construction of the old CTS's resembles how guitar speakers are made these days far more than bass speakers. Limitations of the day in speaker design saw to that. I think both you and Bill make legit arguments for your opinions, though. The old cabs definitely had bassists in mind, but the speakers definitely would be considered guitar speakers if they came out today.
Maybe but did you ever compare 70's V4 speakers 12" with SVT speakers? Big difference in construction, the V4 speakers were very stiff with a short throw and the SVT speakers were very compliant with a long throw. also the V9 was an SVT made for guitar players (imagine that? Talk about Marshalls
) I've never examined the speakers in them (x 10") but do know that they rattled with bass going threw them unlike SVT cabs.
That I haven't done. But bear in mind I'm not arguing against you.Maybe but did you ever compare 70's V4 speakers 12" with SVT speakers? Big difference in construction, the V4 speakers were very stiff with a short throw and the SVT speakers were very compliant with a long throw. also the V9 was an SVT made for guitar players (imagine that? Talk about Marshalls
