Robert Lee was asked this very question while auditioning the Adagio at THE SHOW. His response was an emphatic yes. Certainly at 89 dB and 6 Ohm nominal impedence, it would be easily driven by many tube amps.
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The Adagio's are very SET friendly! Your Cary SLI-80 cranks out 80wpc in ultra-linear mode and 40 watts in triode which I think would be a match made in heaven with the Adagio. I ordered my Adagio's a while after RMAF, as the Zen room pulled me back for 3 lengthy listening sessions. I received them prior to xmas and I have tested them with a pair of SET 15 wpc 6C33 mono-blocks. We just moved into our new home on Jan 15th, and my new listening room is now quite large. I have a friend who is selling his deHavilland Ios ST 845 integrated, to move into a pair of GM70's. So I jumped on the Ios as at 27wpc, it will give me the oomph I need in my now larger room. As Kmillette mentioned at 89 dB and 6 Ohm nominal impedence, it would be easily driven by many tube amps.
Audiphile1...I got your email, and you've got a response back!
Drubin...These speakers use a round ribbon tweeter and a pair of ceramic-coated fabric cone woofers with a custom "short-voice-coil/long-magnetic-gap" voice coil design. Asides from saying "they sounded excellent, with a very silky-smooth and warm character being driven by a pair of Class-D amps", not sure how else to answer your question... :-)
I've been aware of AZ since Robert Lee left Harmonic Tech and have read reviews on almost all of his different cable iterations since the company inception. AZ is quite well known to anybody that follows this business. I was asking about who made the ceramic coated paper cone drivers in the Adagios. If your answer was that Robert is manufacturing his own drivers, then thanks for the info.
I just received them yesterday, and just set them up this morning. Robert Lee says they take 1-2 days to start sounding good, and 3-4 days to really break in. Personally, I'd be surprised if the break-in was that quick (I've had ribbon-tweeter based speakers before, and the break-in was much longer)...but Audphile1 will be coming over to check them out tomorrow...
Allright......I checked it out today. Phil and I both suspected that the speakers are not fully broken in yet. It's been only 2 days that the speakers are playing and no way they are 100% yet. But, the good part is, I was very impressed with the performance of these speakers especially considering the price. Very nice imaging and staging. We ran them with Empirical modded Sony S7700 to Dodson 218 into Blue Circle new integrated(don't remember the model but I think it's their new hybrid). Very good sound. Deep bass, detailed overall, but definately needing some more playing time. I'll be back there in a week or so to check these speakers out again after further break in, but initial impressions are very good. Phil says he will experiment with placement a little more to determine optimal position, but they way they played today, pretty impressive for $3700
FWIW, when Audphile1 came over, I had less than 15 hours on the speakers, but the difference from right out of the box til tonight was already apparent. Right out of the box, the bass was virtually non-existant, but as Audphile1 notes, tonight the bass performance is pretty extended. There's definitely room for the rough edges in the bass and high frequencies to smooth out. Also, I was very surprised at how big a soundstage these speaker throw.
I still have a lot to learn about these speakers in terms of placement and how they interact with my room...tonight, we changed the toe-in by 5-6 degrees, and we noted a significant improvement in soundstage depth and even some tonal balance. I'll play with that more after I get 75-100 hours on them. As noted by Audphile1, at $3700, they are quite good even now...if they smooth out the way I anticipate they will, I will regard them as a pretty serious bargain at their price...
Btw - since posting yesterday, I've probably put another 10 hours on them, and they have already smoothed out significantly since Audphile1 came to listen. At this time, I'm quite happy with the bass response; the high frequencies still need some smoothing, but they are much more listenable now than they were yesterday. Am driving them with a 95wpc hybrid integrated (Blue Circle FtTH) and am quite pleased with the overall sound...
Update....It's been almost 2 weeks. Now we are talking!!!! These Adagio speakers finally gave in to a break in process. Everything smoothed out. Balance is very good with no specific frequency that stands out. Bass is tight, deep. Highs are smooth. Mids are juicy. Placement hasn't been changed much(I think) but the break in of the speakers definately went well. Image is dead center, everything else evenly layed out in the soundstage. Nice, deep stage for speaker of this size and price. I actually could not beleive the improvement since the last time I visited. It's almost like a totally different pair of speakers comparing to the way they sounded last time! Definately a huge bargain at $3700. Phil's got a new transport now - Oracle CDT1000. Landed on his shelf directly from outer space. This thing looks cool. Sounds just as good as it looks. Digital cable was AZ Silver Bytes between the CDT1000 and Dodson 218. Very nice sound. Properly set up with right components up stream, these speakers can really sing. Even with Squeezbox2 into the Dodson using the Silver Bytes digital cable, the sound of the system was impressive. Overall, I would not hesitate to recommend these speakers to anyone based on what I heard today. So, here goes the follow up. Once more it prooves that it is important to let the components break in before judging how they sound. I definately liked what I heard today.
The Adagios are not bi-wireable. There are two colors available...red and light maple (AZ calls them "Figured Maple" (red) and "Mappa Bur" (light). You can see pictures of each here:
To answer the origonal question about amps. I use mine with a Karan K180 and Viva Solista SET tube amp. THe K180 at 180 watts of SS power, sounds goood, very good even, but the Solistas 22 watts are much better. There is more dynamics, base grip, they even make the speaker sound louder. When I bought mine, the distributor suggested 20 watts as a minimum for tube output, if you wanted to hear complex symphonic music to full effect
forget about it I have beeen speaking with different guys and the Chinese junk is horrible ,it may sound pretty decent today just look inside though the capacitors ,resistors and coils are rubbage. Just ask the guy doing the reference mods the caps are as light as a feather =cheap and will sound worse over time just ask
any modder , Hyperion is another I have had people tell me their press board cabinet or what ever they are made from was breaking at the corners .
Buy a speaker from North America or Europe, you may pay
a little more but it will last.