my little tube rig is up and running

ohskigod

got the Radii Tube amp (8wpc push pull) with Phillips tubes deliverred this weekend.

Its now running with my Dodd preamp (amperex Bugleboys) and a Tosh 3960 (stock) as a source.

I have AR and Monster for interconnects (working on that), with Anticables speaker cables.

this is driving my pair of Polk RT55's on a pair of parts express medium density stands.


I hooked up this system for fun during my weekly poker night, as I was the first out of 15 to be out of the game (dont get me started!). Since I was bored with the prospect of watching poker for 2 hours, I figured it was a good time to hook this stuff up.

The final results were very surprising, and not just to me. A couple of people at the game took note at how the rig sounded, especially when I told them it was 8 wpc compared to my 2 channel rig's 250. While it obviously didnt sound as "big" as the Carver's, this little set up put out some very enjoyable sound.

I let it run for the duration of the game, and learned that it sounds better after 15-30 minutes of warm up. While I allways liked my RT55's for home theater, they never moved me that much with music.....until now. seems like this little rig just brings the best out of the 55's. Its the best i have ever heard these speakers sound. I'm sure the 92db effiency helps quite a bit.

While I had on my agenda to get a pair of speakers more appropriate for tube use, say Bozak or klipsch, I will certainly not be in a rush to do so.

this little amp sounds better than it has any business doing so at the price point and power rating. a real eye opener. I really should see what my Jolida sounds like on it

steveinaz

That Tosh is holding you (and your systems potential) back brotha. I have one, and I am not impressed. Not trying to be an a-hole, I just think your setup deserves a better source...

faster100

I have that same cd and it seems to work and sound good, to me.. I upgraded the cord to an iec outlet and thicker cord, added a heatsink and that's about it.. added rubber feet.. Im also running an all tube small rig.. pas tube pre and 10 -12 watt vintage tube amp... for a small simple tube rig i don't see the point in going balls out on the source. Just my opinion though. I also run Rt25's... nice small rig on tubes on the cheap..

ohskigod

steveinaz wrote:

That Tosh is holding you (and your systems potential) back brotha. I have one, and I am not impressed. Not trying to be an a-hole, I just think your setup deserves a better source...

So I guess that is a vote for "get a better source before the speaker upgrade" column?

allways a love/hate thing with the Tosh

it allways sounded good to me, not phenomenal, but good. bang for buck allways factors in with my assessment of a product, so maybe the bang for buck I got out of this thing makes me like it.

I will try this rig with my Jolida JD100 eventually, but part of me doesnt want to since I'm hosed if I like it that much better. I cant keep switching it from my big rig to the all tube rig, what a PITA that would be.

ohskigod

who knows, this might lead me into going balls to the ball on a tube 2 channel rig and save my solid state fun for my theater. its too soon to make that kind of decision though, as it would mean me parting with the platinums. . From what I know, they arent exactly tube friendly

that decision would NOT be made lightly, thats for sure.

faster100

for tubes, in the lower power range.. id say smaller speakers... the Rt55 is a huge speaker for 8 watts, Not saying they can't drive em.. but ya know

Simplicity is sometimes best, every rig doesnt have to be multi hundred/ or thousand dollar rig.. I like a small simple rig.. a Really nice HT rig and a balls out 2 channel rig... I have 2 of the 3 now..

ohskigod

believe it or not, the Radii drives them with AUTHORITY. I believe the RT55 has the highest efficiency rating of the entire RT line at 91 db per watt, including the later RTi line (and probably the current RTi line as well). I was surprised at that, hence the reason I went with the Polk instead of my smaller B&W DH550 (87 db per watt I believe).

I still want to see what they will do with a large floorstanding (but very efficient) speaker, say Klipsch or maybe a bozak B302.




****edit**** ooops, the RT55 are 91 db/watt, not 92

steveinaz

Not a matter of going "balls to the wall" just a moderate upgrade, given the nice tube setup he has. Maybe something in the $300 range. If it were me, I'd grab a Sony SCD-2000ES off the 'bay for his rig. Sony's punchy/tight bass to balance out the tubes a little in that department.

faster100

Agreed!!

Zen Dragon

At 91db efficient they are still a tad under efficient for an 8 watt amp. I've heard 94db and up is best for the lower watt tube amps.
Having said that I beleive the 55 is biampable. Might be interesting to hear the tube amp on the highs with some solid state driving the more demanding lows.

ohskigod

steveinaz wrote:

Not a matter of going "balls to the wall" just a moderate upgrade, given the nice tube setup he has. Maybe something in the $300 range. If it were me, I'd grab a Sony SCD-2000ES off the 'bay for his rig. Sony's punchy/tight bass to balance out the tubes a little in that department.

something to think about, selling a bunch of stuff, so I'll have some "fundage" on hand. My rule is, whatever I sell, I put beck into one of my rigs, as long as I dont have a crisis in my life.

will put this on the options list

organ

Congrats. That's a very sexy unit.

Tubes with the RT line is a very good combo. I hook up a pair of RT15i to my tube amp once in a while.

Isn't it cool how tubes can power the speakers with authority and robust sound even though it has very little power?

audiobliss

Awesome! Glad to hear you finally have it all together.

Maybe we should be on the look out for some Carvers in the FM, eh?

ohskigod

might be picking up a pair of Bozak b4000 symphony's this weekend. will keep ya posted

organ

Awesome! Do you have any links with pics. What's the sensitivity?

ohskigod

not yet, but will snap a few when they get here. dont know the exact sensitivity, but its way above 91 they run well on the lighter tube power from what is said. I heqrd a pair of b302's and just loved listening to them. not the most accurate or detailed, but just one of the sweetest/smoothest speakers I ever laid ears on. Simply put, it was just a joy to listen to. the symphony is a bigger version of it, with 2 12" drivers, 1 5 1/4" mid driver, and 8 tweeters lined up in an array. should be glorious.

Early B.

Once you put the Jolida CDP on that rig, you'll be hooked on tubes forever.

ohskigod

I'm going to at least wait to see if and when I get the Bozaks in the house.

organ

Sounds like some awesome big speakers. Keep us posted!

ohskigod

apparently there 165 lbs a piece. even big Lou's gonna need some back up...LOL