Amplification question - PrimaLuna Tubes vs. McIntosh Solid State


Hello all,

First post here, was looking for a little help on my new system set-up.

My sources for music will be fully digital using Roon to manage those assets. I have a PS Audio DirectStream DAC with Bridge II network card which will also be acting as the preamp. Speakers are Monitor Audio Platinum PL100 studio monitors with a REL Storm subwoofer.

I have never owned a tube system. My previous system was also a fully digital source music set-up (CDs) with Martin-Logan reQuest speakers, REL subwoofer, and Classe CA-300 amp. I have had to downsize those components due to physical space restrictions.

I honed down my purchase choices to either a PrimaLuna DiaLogue Premium HP tube amplifier, or a McIntosh MC152 solid state amplifier. These are the only two models I am willing to consider at this time to keep things focused on this discussion thread. Links are:

http://www.primaluna-usa.com/dialogue-premium-hp-power-amplifier

http://www.mcintoshlabs.com/us/Products/pages/ProductDetails.aspx?CatId=amplifiers&ProductId=MC1...

This system will be going into my office, and will be run pretty much 8 hours a day, 5-6 days a week. As far as the type of material I listen to, it is a very eclectic mix of rock, classical, jazz, pop, etc. Very often I get to crank the system up to seriously fun levels when I am doing graphic design, Photoshop, and other creative tasks.

I would love some feedback from the community here on which choice, tube or amp, they would put into this system. Also, what kind of service life and realistic maintenance would be required with the PrimaLuna tubes being my first tube component if I go in that direction.

Thank you in advance for your help!

Cheers,

Sam


128x128samster777
I have used switchable SE/PP tube mono block amps for over 20 years.  I followed your link to the PrimaLuna site and note that they self bias.  That will reduce a lot of maintenance/time and hassle for you.  I did not see that they could be controlled by a trigger; if you want one button
"easy on" for all of your equipment via a single remote control (which I believe the Mac would offer), that is something you may want to consider.  Also, as a tube amp owner, I will mention that I completely turn off my amps--hard power off--after listening.  They do not have a "standby," as it would dramatically shorten tube life.  I did not observe a standby on the PrimaLuna (maybe it's there and I missed it).  That means that powering on a tube amp system requires repeatative bending to reach power switches and it means waiting at least 30 minutes for the amps to reach operating temperature and settle down.  If the system is going to be running all day, that once daily ritual and warm-up may be inconsequential, but you have asked, so I have shared what only a tube amp owner could know.
btw, I have the same DAC with the Bridge II.  I have A/B compared the volume control in the PS Audio DAC to two excellent pre-amps.  The volume control is a good one, but not the same as a high quality pre.
hope this helps...good luck....
The answer is simple:  to create the warmth for the digital music the tubes can work their magic.  Your ears will thank you
This post has had me spending some time with my mc7300 and mc302 and a mono setup of the Usher 1.5 that I haven't used in quite a while, I have been back and forth with several different pairings into both my ns1000s and ns2000s and even a pair of dahlquist D10s for good measure to see if after a couple years or so w/o solid state going back to tubes after a slight hiatus I can say that I do appreciate the benifets to the soild state crowd, but from little 30watt mono amps to 500 watt carvers, that I've spent sometime with in my comparison the detail in the tubes specially the el34 amps, and the monstor kt120s in the carver the tubes to my ears are so much easier to listen to music doesn't have to be perfect, with the DQ10s the staging and Sonic's was beautiful and very easy to listen to with out fatigue of any kind, vs the almost clinical no room for error of the solid state amps. Now I can say the ushers got me closer to a tube experience driving a pair of thiel 3.7s. As far as heat, wow the carvers lit the room on fire I forgot how hot those amps were, vs the mc275 monoblock I normally use. The point is  I forgot how great both spectrums can be, and how lucky we are to have such great options in hifi. everyone's ears are different determine what sounds best to you. Preamps, dacs and stage buffers can be used to get close to the sound you want with both options. Either way you go i don't think you will be disappointed, the look of both are just as beautiful. 
Having owned both, Primaluna without  a doubt.Running all day Id go with solid state but certainly not McIntosh