No. 26 - MM or MC board?


Hi - I am trying a ML 26 preamp w/phono stage in my system, (Denon 103R cart.). I set the gain internal switch to 58dB or 38db and cartridge gain to 100 Ohms which I beleive is the recommended load for the Denon (instruction come in Japanesse so I can´t tell).

The point is that eventhough sound level is acceptable at the 1 o´clock position in the volume knob, there is not enough dynamics compared to the line level input (CDP in this case) and far from my previous Michael Yee phono preamp signal.

Could it be that this particular No. 26 has a MM board?
The 100 ohm setting is wrong for the Danon 103r?

Thanks for sharing your experience and knowledge here.

Fernando
flg2001
Tom, I would have tried your cool free mod long ago, but I haven't had the Rega mounted since last Spring, what with the low-mass and other tonearms I've been playing with over the last year. Now that it's up again (thanks to the Denon), I'll be trying it out very soon.
But I Do !!! (own a RegaRB300)

Twl, send the mod please !!!! (email me to learn more about it).

I performed the chenges in the ML 26 (sensitivity and impedance), That´s More Like It !!!!!!.... just incredible for the price !!

Thanks Twl, you saved me many hours of trial and error with so much different setting combinations (I owe you a fine Mezcal bottle jejeje).

I will nevertheless try to get my hands on that Denon SUT that John recommended .

One final question: When I touch the AI SUT it hums... it does have an earth screw but have not earth the unit yet, is this necceesary? (The RB300 wires does not have an earth cable as you know)

Fernando
John - I got this SUT some years backfrom a friend who bought it in the UK, this was a pretty expensive unitandit is built like a little tank, very heavy and pure silver windings, I just love it´s sound, and was stored for more than 6 years since I had since then active phono preamps that handled MC signal with no problems whatsoever.

In any case, one of the things I like from this hobby is to try different things and listen them in my system.

Enjoy

Fernando
Fernando, I'm glad I was able to help you out.
I'd really love to share that bottle of Mezcal with you!
The best Mezcal I ever had was at a beach near Puerta Vallarta called Las Animus(not sure of the spelling), where the local people were selling home-made Mezcal bottled in old Coke bottles and corked! Truly spectacular, but the border agents took the ones from me that I tried to bring back.

Regarding the HiFi mod, I don't sell them anymore, but you can make one from the instructions that I provided in the original thread on this subject here:http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1032024188&read&keyw&zzstrange=tonearm=tweak
It is simple and quick to do, and works very well with low compliance cartridges when using them on a Rega tonearm.

Basically, you take a pair of bullet shaped fishing weights which weigh about 12 grams each, and drill a small depth into the big end, so that they fit over the bearing axle nuts. Then you can Blu-Tack them(or other temporary fixing) to the bearing axle nuts, and you are done and ready to play. A hot-link to the photo of a completed installation is in my previous post. Cost is about one dollar.
If you have specific questions, you can email me.
Twl: Thanks for sharing the mod plans with me, I will read the instructions. Send me by mail your shipping address so I can send the Mezcal, you won´t beleive this one, since it is a 12 year old, vintage Mezcal to be served straight as a good Cognac!

Fernando