Hi Kelvin,
I'll be doing a full review shortly; in fact I've already started the introduction. The Jelco uses a Linn-type fixing which with a suitable mounting plate fits on the 1210 no problem.Marco, thanks for your many opinions on the 'table. I noticed that you've gotten a new Jelco arm. Are you going to post a review, and why you've changed? is the Jelco a rega derivative, and so use the rega armboard, otherwise how are you mounting the jelco arm on?
Why have I changed?
Well, it was always my intention to eventually fit a 'hi-end' arm on the 1210 once I had used and lived with the modified Technics arm for a period of time and analysed what it did. I prefer S-shaped detachable headshell arms because of the types of cartridges I like and those I intend to buy in due course (Ortofon SPU, EMT XSD-15, etc) so I had looked at suitable arms from Ortofon, Audio technica and EMT, but they were all overpriced in my opinion - I felt that you are paying for the name more than anything else, which is not where I'm at with hi-fi these days as I now seek maximum sound-per-pound value with any equipment I introduce into my system.
So when I seen the Jelco arm pictured in this month's HFW magazine with Sound Hi-fi listed as stockists I said to myself "That's the one!" and then arranged an audition - safe to say that the Jelco met all my expectations! Also, I was fed up with people associating the Technics arm as a 'cheap OEM unit'. I knew this wasn't the case and that when damped and rewired with Cardas cable it offered superb performance but there was always that niggling doubt there that it was somehow holding the deck back. So now I have a top-notch T/T and an arm to match. When I get the SPU or EMT cartridge then people can stop slagging off the DL-103, as it'll be 'hi-end' all the way!
I'm only joking though as I will always use 103s because I love their sound. My ideal cartridge line-up would be three 103s (an 'R', Pro, and ZU-modified), an Ortofon SPU and an EMT XSD-15. I'd also like a classic Shure MM, and have my eye on an M75ED.
You need a high mass headshell such as the Audio Technica LH-18 that I use. Coins and such like add unwanted resonance to the headshell which transmits down the armtube and adversely affects sound quality. Using coins to add extra mass is a stop gap method only and should not be seen as a permanent solution.I'm using the 103 currently, and with the stock technics arm and headshell, there's not quite enough mass to match the compliance. I've resorted to sticking a small coin on the headshell. Anything heavier, and the stock counterweight won't be able to balance. Also, I'm a bit concerned about putting too much weight on one spot, as opposed to spreading the weight along the arm. I'll try and get a picture of the coin-modded 103 here when I get home.
The 103, in my experience, likes a high-mass headshell on a fairly 'lossy' arm. You don't really need a genuinely high-mass arm, as long as the headshell used has plenty of weight and is of rigid construction. The ideal effective tonearm mass for a 103 is something in the region of 12-15g, which is why the standard Technics arm, and the likes of the Jelco are spot on. The 18g weight of the AT headshell will add to the arm's overall effective mass anyway, so you don't need the armtube itself any heavier. Counterweight balances don't contribute to the overall effective mass of tonearms as they are decoupled from the armtube.
The brass counterweight balance I use simply slots on to the arm and is held in place with two small grub screws. Mine is in two pieces but you can also get John (Thrunobulaxx) to make them in three pieces and to any weight you want.For the brass counterweight that I've heard so much about, It's a screw on right? What is the mass of the counterweight? I recall that it's in 3 pieces, so how much weight does it bring to the tonearm?
Yes you would indeed. You'll find though that it's almost impossible to get VTA spot-on with a 103 on the Technics arm unless you use a combination of mats to get the arm parallel, simply because the 103 is quite a shallow-bodied cartridge (compared to something like a Stanton 500 which the arm was designed to work with) and there isn't sufficient VTA adjustment built into the arm to get it right. Even when the VTA adjuster is wound down to minimum the back of the arm will still be too high. This is one of the reasons why I got the Jelco, and what made me completely change my mat configuration, more of which will be mentioned in the review.one other thing, about the mats. I've read quite a bit here also about the various mats and experiences using them. I'm currently using the 5mm funk achromat, and because it's about the same thickness as the stock rubber mat, i didn't make any compensation to the arm height. But if you stack the herbie (3mm? 5mm?) with the funk mat (5mm), it goes up quite a bit, and do you adjust the arm height accordingly to keep the arm parallel? I'm still quite a novice at the VTA adjustments.
No problem. I know exactly how you feel as I felt the same way when I was waiting on my deck arriving from KAB. It's probably the best piece of hi-fi gear I've ever boughtQuite a bit to read for a first post, but I'm quite excited about my incoming, and just want to keep this excellent thread going for a great 'table.
Marco.




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Originally Posted by Marco

if the jelco arm is really an improvement even over the tricked out stock tonearm, it would be a cool upgrade to look forward to.
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