Rowland Model 6 monoblocks - my thoughts


I promised John (Jmcgrogan2), that I would share my thoughts on the Jeff Rowland Model 6 amps that I purchased from him. If you are interested...read on!

Some background: I have always been a tube guy. In fact this Rowland is my first solid state amp. From Conrad Johnson, Cary Audio, VTL, Audio Research, and Sonic Frontiers, I've had some damn fine tube gear in my house! As is so often the case with this hobby, I took a trip on the dreaded audio avalanche; buying, selling, trading, and testing various components. Each time, convincing myself that it just wasn't right. Always, that little voice kept pushing...just buy "Brand X" cable, or "Brand Y" isolation feet, and use "Brand Z" vintage tubes, and the sound will magically transport me to some sort cosmic neverland! Little could I appreciate, that I was probably already there. In short, audio-nervousa was getting the better of me, and I lost site of the goal: enjoying recorded music. I decided to take a step back from this madness and start over...SLOWLY...MORE BUDGET MINDED...NO GIMMICKS. This time I would do a better job of managing, balancing, and accepting compromise. And above all else, I would just enjoy the music.

So for the last five years, my simple and basic system consisted of:

*Conrad Johnson Premier 11A 70W tube amp
*Conrad Johnson PV 10B tube preamp with phono stage
*Electrocompaniet EMC-1 CD Player
*Technics SL1210 MK2 turntable that I've kept as a spare from my DJ years in case I get a hankering for vinyl. I Sold my SOTA, due to lack of use.
*Harbeth 7ES2 speakers
*Kimber Kable PBJ interconnects
*Speltz Anti-Cable speaker wire

A Sam Tellig or Harry Pearson reference system, the above components do not make. However, this time that wasn't my goal...I just wanted to listen to music instead of worrying about $3,000 speaker cables being the weakest link. And to my surprise what glorious music these components produced!!! Oh how I was finally moved. Beautiful imagery and staging. The components just seemed to disappear leaving me with music. In my small listening room, everything sounded good. Silky smooth and so easy on the ears. Several friends who moved from two channel into the home theatre world were astonished at my latest "house sound". Maybe my mindset was different this time; older and wiser? Possibly I was more relaxed and less fussy? Or, maybe this time I didn't listen with my wallet?! Whatever the case, I found my own slice of Nirvana.

HOWEVER, there were occasions when the wife and kids left me alone to my vices, with the opportunity to really "crank the volume knob". Here I thought the Harbeths might like a little more power...more headroom. Not that the CJ was ever clipping...perhaps the tubes were just borrowing from Peter to pay Paul, when asked to work their magic at full tilt with these speakers?!?

Enter Jeff Rowland Design Group. I have ALWAYS had a thing for the JRDG gear!!!! From my perspective, Rowland is a hands-on mad man always pushing the envelope with newer technologies and unusual circuit designs. Doing it a bit different as it were - right, wrong, or indifferent - his way. Show the guts of a Rowland to an Electrical Engineer, and the head scratching begins! All this with a beautiful packing job to boot! Years ago, I auditioned the Rowland Model 2, 75 watt stereo amp with Synergy preamp at a local hi-fi store. I was blown away and had a hard time believing that some tubes weren't being slipped in, some place. I remember that audition being very lively and punchy without annoying. In short, I never forgot it.

Enter the Model 6 monoblocks. Once the decision had been made for more power, I had my amp choices narrowed down to the CJ Premier 12 (140 watt monoblock version of my Premier 11A) or something from JRDG. Deep down, I felt it was time to roll with one of the "better" solid state amps...go for a total change as it were. Remembering my audition with the 75 watt Model 2, the Model 6 with it's 150 watts seemed like just the dish for me. The units I bought from Jmcgrogan2 had the black face plates, which was an added bonus; I felt that the all black would be less "bling bling" than the signature Rowland silver, and less likely to influence anyone that happened to be over for a listening session. The black blends in much better, and is more subtle. However, once you inspect them up close, you quickly realize that you're looking at something special. Black aluminum tanks!

Enter Model 6 sound. For some reason I was expecting more harshness, maybe some grain. Even though I was previously impressed with the Model 2, I just couldn't let go of this notion that solid state was the devil's work and would annoy me with shrill sounds. OH HOW WRONG, I WAS!!! All of that tube-lover smoothness is there. The best imagery I've EVER heard....and this is something my CJ excels at! There are times when I close my eyes and feel like I'm not even listening to a "stereo"!! It's all there only with much greater authority! Much more concert like. More stage like. This sound is very energetic and moving...and that tube like warmness that I'm so fond of is still there with just a touch more detail. And the louder it gets, the better!!!! I'm amazed at how much bass my Harbeths can deliver - these are not large speakers!!! But now I have this punchy bass slam that's accurate and controlled. And here's the clincher: at louder volumes, the Rowlands can present this deep bass without losing any of the mid range or upper registers. No more borrowing...no sacrificing one area to furnish another. They just keep delivering and reproducing what you throw at them until some other component breaks down...in my case it's probably my small room or the monitors! I never thought solid state amplification could give me the same hair raising experiences as my beloved tubes. Time to quickly step off the audio merry-go-round, yet again, and enjoy what I have.

Thanks For Reading,
Jeff
sand_man

Showing 10 responses by jmcgrogan2

Hi Jeff,
I'm glad that you are enjoying the JRDG Model 6 monoblocks. I can't say that I am surprised, they were about the best SS amps that I've heard in my 30 years in the hobby. Yes, they (Rowland's) were surplanted by a tube amp, and I am happy. If I were ever to go back to *gasp* SS, the JRDG 2/6/8/9 series would certainly be top on my list.

Anyway, best wishes to you Jeff, and enjoy the Model 6's....

Cheers,
John
Well Jeff, you do know what they say, "patience is a virtue". It's not always easy in this hobby, but it is true nonetheless.

Enjoy the music.

John
They are cool customers indeed. That's why I left them on 24/7 when I owned them. IMHO, it'd take them an hour or so to sound their best, when left on 24/7 they were always at there best.

FWIW, I've owned a couple of Class A amps, the Model 6's sound like Class A, but as you've felt, run much cooler. That part I do miss.
I guess I'll be buying some Speedo's this summer. :)
Jeff, yes, a good preamp may well help you even farther down the road to nirvana than what you currently have. I also agree with Raquel, that running balanced works best with these amps. I haven't heard the top JRDG preamps as he suggests, and they may work quite well. I've always been more of a tube preamp fan myself, and think you can do better with tubes. Your CJ 10B may be a bit sluggish and warm, but there are many more extended tube preamps out there. You may want to try a BAT or ARC for example.

As for the battery supplies, I know many did like them, I however was not a fan. I heard these Model 6's with battery supplies, and the sound was smoother, and a tad warmer, but lost much of the extension and rhythmic drive that I felt drove these amps. As you know Jeff, I was using Stealth Dream power cords on these amps. IMS, IMHO, these amps sounded best with AC and with good quality cords.

As always, YMMV.

Cheers,
John
I agree with most of what Raquel has stated, especially with the mid to late 90's being JRDG's golden years, and his reco for the Coherence II/Synergy preamps.

I do have a couple of differences though, first being that I would still prefer a tubed preamp. I like tubes, that's me, that's why I sold you the Model 6's Jeff....tubes. I feel that a tube preamp can be used with the Model 6's with great success, using the 18K input impedence switch of course. I know, I've done it. I feel that you are not happy with your CJ, which I can understand, as I never really warmed (no pun intended) to the CJ sound myself. However, if you have cash in hand, I'd seriously take a look at Upscale Audio who is selling NOS BAT VK-31SE's for just under $4K.
Great, great preamp, and IMHO better than any SS preamp out there. I would buy new for the 5 year warranty though, it's worth it.

If I had to go back to SS, I actually preffered the Threshold T2 over either Rowland preamp, or Krell and Levinson to boot. I'm not trying to confuse you, just let you know of other options. Raquel's Coherence II/Synergy reco would come right behind the T2, IMHO, along with maybe a Klyne Series 7 preamp. If you'd like to match JRDG for synergy sake, that's certainly understandable, but I wouldn't paint myself into that corner. There are many better preamps out there than your CJ PV10BL.

Lastly, I do agree and disagree with Raquel on his comment about unplugging equipment. I do agree that ALL equipment should be unplugged from the wall for electrical storms. I disagree that antisurge protection at the panel or elsewhere is and alternative. I've been a audiophool for over 30 years now, and I have owned many protection boxes, but have found NONE provide absolute saftey for close (<1mile) lightning strikes. Many protect from surge, but NOT lightning. If a storm is a brewing, I still unplug/disconnect my main audio/HT breaker box.

Believe me, when you're talking about very expensive/sensitive equipment, if your $3000 surge protector fails, it will cost much more than that to fix your rig. They're great for most 'hiccups', but unplug for severe storms.

Cheers,
John
Balanced ouput impedence of 90 ohms and 45 ohms unbalanced should work really well with the Model 6's. Those output impedences are almost SS like in nature, which is also one of the complaints about SF gear, is that they are tube, but sound too much like SS. If you are looking for the best of both worlds, this may well be it, however, beware the call to upgrade to NOS 6922 tubes, as 10 of them could be very, very expensive.

I've heard several SF amps, but only the SFL-2 preamp. I think this would be a very intruiging combination though. SF definitely does NOT sound like CJ.

Cheers,
John
Congrats on the 'new' preamp Jeff.
Kids.....I know about stinking kids....if it weren't for my three boys I'd have had the money to keep them JRDG Model 6's as my spare amps....

I hope the Muse works out well for you (though I still say go tubes :) ).

Cheers,
John
Jeff.....Dude....relax, I was just joking. I think you probably got a great deal on the preamp, like you did on my amps. Hopefully you will live happily ever after. There is no doubt in my mind that you will now have a more neutral sound than your previous CJ gear, as IMHO nothing sounds warmer/sweeter than CJ gear.
Enjoy the Muse/JRDG hook-up.

Cheers,
John
Jeff, a big smile from me, I'm glad that you have found audio nirvana! Now the key is to just relax, and enjoy the tunes. Forget the glossy rags and internet raves. Yes, for many more $$$ you may do a little better, but in the long run, you have to ask yourself if it's really worth it. I know the law of diminushing returns hits early and hard, and sometimes I find myself wondering how I got in so deep.

If you're that thrilled with the sound, and it sounds like you are, just spend any extra $$$ on the software would be my reco. Kick back, turn it up and smile....

Cheers,
John
Tiff,
You may be better served starting a new post in the Speaker forum instead of asking a question about speakers in a 4 year old thread in the Amp Preamps forum.