Vinyl Asylum

Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

Return to Vinyl Asylum

Message Sort: Post Order or Asylum Reverse Threaded

Jelco SA-750D arm and cartridges.

68.8.173.147
Posted on April 23, 2016 at 14:03:07
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 Hello all,
I need some help from those with experience with Jelco SA-750D arms. What are the cartridges you have used and how did they work out with the Jelco SA-750D.

I have a B&O SMMC CL20+ but since my B&O table is down and will be down for a awhile I wanted to use that with the Jelco SA-750D arm since the manufacturer said the Jelco 750D can use higher compliance cartridges. I will be using the B&O adapter for non B&O tables.

Please keep the info to the topic as I get info that leads away from the topic under discussion.

Thanks!

 

Hide full thread outline!
    ...
RE: cartridge and arm matching, posted on April 23, 2016 at 14:34:33
user510
 All cartridges have a rated compliance value.
All tonearms have a rated effective mass value.
Use these two values to calculate if a given cartridge will match well enough with a given tonearm.

See link below to learn how.

 

RE: Jelco SA-750D arm and cartridges., posted on April 23, 2016 at 15:39:58
AudioSoul
Audiophile

Posts: 4594
Location: north central AZ
Joined: July 9, 2005
I have owned several different turntables with the 750D mounted. The carts. that I have had good synergy with are the Denon Dl-103R, Shelter 501 mk2, Clear Audio Maestro. The ones that didn't do so well are the Denon DL-301 mk2 and any other MM carts.

 

RE: Jelco SA-750D arm and cartridges., posted on April 23, 2016 at 16:47:12
Dave Pogue
Audiophile

Posts: 11689
Location: DC Area
Joined: October 9, 2001
 I have a 750D and a 750E (the 10" version) on my two turntables. All my MM/MI carts (currently seven) work beautifully on the Jelcos. My one LOMC -- a Denon DL301 II --also sounds great on this arm. So much for uniformity of experience :-).

 

RE: cartridge and arm matching, posted on April 23, 2016 at 17:04:58
PAR
 And the OP might like to visit Vinyl Engine where the database will give him the compliance and mass figures for arm and cartridge that are needed to do the calculation. There is also a chart of combinations and resulting resonant frequencies found in "Tools" (therefore no need for a calculation).

However not all of the data for the OP's particaulr arm and cartridge is logged there.

It seems that the mass of the Jelco arm is circa 13.5g. A typical B&O MMC cartridge has a mass of 3.5-4g with a complicance of 25-30. This will produce a resonance of around 6-7 Hz which is not ideal.

 

The 750 is like my 370, right? Has oil damping?, posted on April 24, 2016 at 05:17:51
Opus 33 1/3
Audiophile

Posts: 4184
Location: D.C. Area
Joined: February 19, 2014
 That should make it compatible with most cartridges, compliance wise. My 370 handles everything from a low compliance DL-103 to a high compliance Ortofon 2M Blue.





Opus 33 1/3

 

The Jelco SA-750D has oil damping..., posted on April 24, 2016 at 14:27:43
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 and with that it can be used with a wider range of cartridges including High Compliance cartridges.

The Denon DL-103R keeps popping up that is a good cartridge with the Jelco 750D.

I have seen a few post about having the stylus and cantilever changed along with the body for a way better sounding Denon DL-103R.

 

Thank You for the info..., posted on April 24, 2016 at 14:30:40
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 with my calculations the B&O is just a little over 7hz for the resonant frequency. Not too bad but with the Oil damping this should work fine.

 

Thank You for the info..., posted on April 24, 2016 at 14:31:34
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 I really appreciate it.

 

This is the type of info I was looking for., posted on April 24, 2016 at 14:32:54
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 Thank You for the feedback on those cartridges and the Jelco 750D.

 

Thank You..., posted on April 24, 2016 at 14:34:10
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 I will be looking into these.

 

I'm wondering how a Grado Sonata II Wood Body would work..., posted on April 24, 2016 at 14:35:44
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 with the Jelco SA-750D?

 

I've got two flavors of 103. One a bone stock DL-103 and the second, posted on April 24, 2016 at 15:06:01
Opus 33 1/3
Audiophile

Posts: 4184
Location: D.C. Area
Joined: February 19, 2014
 A Soundsmith elliptical retipped, Uwe ebony body DL-103 which, along with a Dyna 20XL, are my two favorite carts. Both sound great on my Jelco SA-370H arm.





Opus 33 1/3

 

RE: The 750 is like my 370, right? Has oil damping?, posted on April 24, 2016 at 17:02:12
AudioSoul
Audiophile

Posts: 4594
Location: north central AZ
Joined: July 9, 2005
They are similar looking but it's what's inside that counts. The bearings on the 750D are WAY better than the 370. I have had them apart.....

 

Yes, and it costs twice as much, too. /nt\, posted on April 24, 2016 at 17:57:50
Opus 33 1/3
Audiophile

Posts: 4184
Location: D.C. Area
Joined: February 19, 2014




Opus 33 1/3

 

RE: I'm wondering how a Grado Sonata II Wood Body would work..., posted on April 25, 2016 at 03:46:42
blake
Audiophile

Posts: 803
Joined: May 25, 2000
 I've used the 750D now for about 7-8 years now. It's an excellent arm and great value-the one criticism I have of it is that the standard Jelco mounting collar is a bit sloppy. The aftermarket collars like the Ammonite Acoustics version offer very good value and improvement, particularly if you're using a cartridge with a more sophisticated stylus profile.

That being said, the 750D's effective mass is closer to 20 than it is 13-the Jelco headshell with a decent set of headshell leads and mounting hardware weighs 14 grams! I have an email from Jelco stating the effective mass is 20 but they've also sent out emails to people stating around 13. Go figure, but 18-20 makes a lot more sense.

I run the arm damped and like it that way-just think it offers better performance damped. Although the oil damping will give you a lot of flexibility, the B & O cartridge you have would seem to be VERY highly compliant with a tracking force of 1 gram-probably has a compliance in the 25-30 range. Even with the fluid damping that might be pushing things a bit with the 750D.

For many years I ran Denon 103R's and heavily modified 103R's on my 750D and they worked very well. The 103R has a real world compliance of around 9-10. I recently switched over to a rebuilt Ortofon MC 20 Super which has a compliance around 15 (recommended tracking force of 1.6-2 grams, I track it just slightly above 1.8). Before I switched over I had concerns that the more compliant Ortofon would not be a good match but they were definitely unfounded.

With a quick look, it seems that Grado (like B & O) doesn't publish compliance numbers but the 1.5-1.9 recommended tracking force on the Sonata II wood body would indicate a lower compliance than the B & O and something probably similar to the MC 20 Super.

Just my opinion, but I think the Grado would probably be a better match. No question the 750D is quite flexible with the oil damping but it's still probably best to avoid the "super high compliant" cartridges with it and I think the B & O qualifies as such.

 

Thank You To Everyone!, posted on April 25, 2016 at 20:46:51
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 from what I have read and researched, the Denon DL-103R looks to be the best bang for the buck and would work with the Jelco SA-750D.

I have been hearing a lot about this cartridge for a long time but recently have been seeing more and more good comments about this cartridge.

 

I bought a Denon DL-103R from...., posted on April 28, 2016 at 07:50:38
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 Soundsmith and Peter will be working on the mods. I'm going with the Ruby cantilever, CL stylus, and wood body (it was the last one he had). I can't wait to get this installed on my Jelco 750D. Shoot, I may even put it on my ET-2 arm! :)

Thank You for the info!

 

RE: I bought a Denon DL-103R from...., posted on April 28, 2016 at 10:30:48
blake
Audiophile

Posts: 803
Joined: May 25, 2000
 I think you'll be very happy. I ran both ebony and aluminum bodied 103R's. Peter potted both of them for me-on the ebony I had his TOTL OCL stylus and ruby cantilever, on the aluminum his standard line contact and ruby cant.

 

RE: Jelco SA-750D arm and cartridges., posted on April 29, 2016 at 10:30:56
PMC0607
Audiophile

Posts: 168
Location: Austin, TX.
Joined: January 1, 2014
 I have the 10 inch version with all the TTW AUDIO modifications and the counter weight mod from a company in England. I have used A Dynavector 20x
with great results. Currently using a Shelter 7000 with amazing results. I also used the Jelco Rose wood Head shell. One of my local Audiophile friends use his with a Denon 103 and he loves it too. So as you can see by the different ones mention here, that arm will fit a wide range of stylus. The secret is to match it to your turntable and system.

 

Rosewood Headshell...., posted on April 29, 2016 at 14:13:43
blake
Audiophile

Posts: 803
Joined: May 25, 2000
 How do you like the Jelco Rosewood headshell. What cartridges have you used it with and do you feel it sounds any different than the stock headshell?

 

My Denon DL-103R mods are done!, posted on April 29, 2016 at 21:00:04
Cougar
Audiophile

Posts: 4574
Location: SoCal
Joined: June 25, 2001
 I just talked to Peter on Tuesday and he said he would personal do the mods to the Denon Dl-103R I bought from him. Today I got a call and it was from the other Peter, my DL-103 is finished and will be shipped out on Monday! Now that is great service!

A big Thank You to Peter Ledermann and everyone at Soundsmith! Now I can't wait to receive the Hot Rodded Denon 103R!

 

RE: Rosewood Headshell...., posted on May 2, 2016 at 00:08:58
PMC0607
Audiophile

Posts: 168
Location: Austin, TX.
Joined: January 1, 2014
 The only cartdrige I have used with the rosewood heads she'll is the Shelter 700, according to Larry from TTW AUDIO
The Rosewood heads shell had better definition and better detail etc... The difference is not huge but it is noticible. I guess is due to the different materials been use; Magnesium, Rosewood and copper. I can't remember if the heads hell leads are the same. I can check when I get home latter on this week. I used the Magnesuim heads shell with the Dynavector 20x with very good results.

 

Page processed in 0.031 seconds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]