Nice phono preamp with those settings!![]()
The settings over the last 5 years.
Nice phono preamp with those settings!![]()
The settings over the last 5 years.
Well, with lots of break in (about 35 hours now) the 33xMLD is now liking a lot less of an ohm load... 220-240 ohms now seems to be the sweet spot.After tube rolling with the DS2 phono amp and Freya+ preamp for most of the day I have determined that using the Ray Select 6SN7 tubes in the Freya + and the Raytheon windmill getter 5751 tubes in the DS2 provides the best sound with the loading turned up to 350-400 ohms. This setup provides the widest and most 3D sound stage than any other combo.
The new AT-33xMLD needs a different loading than the older PTG II and the 33Sa... must be due to the new three piece body (zinc, aluminum, and polymer) and suspension. At loads below 280 ohms some voices were sibilant and occasionally a bit sharp, loads of 300 and above smoothed them out, above 350 bright piano notes and acoustic guitars also smoothed out. Going above 420-450 and electric guitar got really tweaky (overload) with a bit of honk. Anyway, the 33xMLD sounds wonderous !
Yes, 240 should be the best. Always adding 100 ohms to internal ohms is the place to start. Doubling that usually or a bit lower is the best it seems like.Well, with lots of break in (about 35 hours now) the 33xMLD is now liking a lot less of an ohm load... 220-240 ohms now seems to be the sweet spot.
Never fully took to the 2M Blue. Upgraded to Bronze and I'm digging it immediately, though it needs a clean, quality pressing.![]()
A humble 2M blue being broken in
I took out the Raytheon 5751 windmill getter tubes and put the JJ ECC803S tubes back in the Pro-Ject Tube Box DS2. The 33xMLD really plays nice with these long plate tubes (the plates are almost twice as long as the plates in the 12AX7/E83CC/5751/7025. Much more power and the sound stage is wider and deeper. The cart with these tubes now sounds its best with the ohm load set around 220-240 (when it was brand new it liked 350-400 ohms with the 803s).Well, with lots of break in (about 35 hours now) the 33xMLD is now liking a lot less of an ohm load... 220-240 ohms now seems to be the sweet spot.

I've had the Raytheon 5751 toobs in the phono pre-amp for 6 years now. Time flies!I took out the Raytheon 5751 windmill getter tubes and put the JJ ECC803S tubes back in the Pro-Ject Tube Box DS2. The 33xMLD really plays nice with these long plate tubes (the plates are almost twice as long as the plates in the 12AX7/E83CC/5751/7025. Much more power and the sound stage is wider and deeper. The cart with these tubes now sounds its best with the ohm load set around 220-240 (when it was brand new it liked 350-400 ohms with the 803s).
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My Raytheon windmill getter 5751s are very good sounding tubes, I especially liked them with my AT-VM740xML cart... my 33xMLD plays "sweeter" with a tube with a bit more power.I've had the Raytheon 5751 toobs in the phono pre-amp for 6 years now. Time flies!
Another egregious video. Subwoofers on.
Sara Smile.
Off "Daryl Hall & John Oates." RCA PG-130. RVC pressing (Japan). 1980.
Run-out: 〄 Ⓑ RCA 6331 A Ⓢ
www.tubedepot.com
My Raytheon windmill getter 5751s are very good sounding tubes, I especially liked them with my AT-VM740xML cart... my 33xMLD plays "sweeter" with a tube with a bit more power.
Very nice.New one here: AT VM 760SLC cart. Not impressed in the beginning, after about 25 hours it opened up - very nice.
Michell Gyrodec and 2 tonearm:
Sme IV with Ortofon MC 3000 Mk2
Sme 309 with Monster Cable Genesis 1000
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Any idea which company did actually make it?