View Full Version : Unison Research Unico P vs Rega Mira 3


ArtK
24-05-09, 08:49 AM
Here are some of my thoughts on the Unico.

Unison Research Unico P

System used for audition:

Rega R5 speakers
Rega Apollo cd player
Rega P3-24 turntable w/Dynavector 10x5
All van den Hul cables.

I’ve been living in my usual state of audio dissatisfaction for quite sometime. I enjoyed my all Rega system but something has been lacking. It felt kind of gray or uninteresting to me. I’ve tried various speakers without enhancing my overall level of happiness…oh sure one speaker had better imaging or better bass response but in the end it wasn’t long before I was reaching for the old familiar R5’s. So now what…can’t afford any new gear and I really, really don’t want to make another lateral move….oh well, live with it.

Then enters the Unico P.

So I’m talking with a friend of mine who is familiar with my gear and he says “it ain’t gonna improve until you bid farewell to the Mira 3”….but I love my Mira 3, it matches my Apollo and has a fabulous phono stage…”so be it”. So I’m browsing a used HiFi store’s online inventory when I see this Unico P for less than I figure my Mira 3 is worth…hmm, I’ve heard good things about those…I wonder. I shoot ’em an email and his reply was;

“Thanks for your email. We were listening to the Unico on Saturday and heard a distinctive hum in both channels so I am going to have my technician check it out this week. If it get's a clean bill of health, I'll email you right away. For now, I'll remove it from the website.”

Thus began the saga of the great transaction…a couple of days later it was;

"The Unison is in the hands of our best surgeon right now. I think a tube simply went but we want to check the bias and make sure everything it okay. It will be 2 weeks until it's available again as he wants to test it under extreme hot and cold temperatures. Sorry for the delay."

Hmm…so I waited 2 weeks and called….”I’m sorry but our tech has been out with personal issues…” oy vey!

Finally and at long last I got the call, “we’re shipping it down for your audition” Yippie!

Moments of disappointment quickly turn to excitement, followed by disappointment, followed by excitement and finally contentment...

When I arrived home from work last Thursday (½ hour early…I was fortunate enough to have a power outage at work) there sat a box on the front porch…Unico Research clearly legible on the box. Excited as I was I had promised my wife and that we would go to dinner with her daughter and granddaughter. So I slipped the box into the house and split.

Two long hrs later I was ready to start the listening. It took me all of 10 minutes to switch out the amps and prepare for listening.

Disappointment

First impression was that of a rather warm presentation but a bit dense with poor imaging but decent timbre. It had promise but that promise wasn’t realized yet…then I remembered a review I read while waiting for the unit to be repaired. The reviewer stated;

“This amp scored a clear hit with all our listeners. It seems to have ticked all the boxes, and what's more the impression it made started well but got better. The praise began cautiously, with a warning note about slight veiling, but by the third track comments were uniformly positive.”

http://www.techradar.com/reviews/audio-visual/hi-fi-and-audio/amplifiers/unison- unico-p-278302/review

So I felt that some patience might be rewarded…but dadburnit patient I’m not!

Excitement

As the first evening wore on the amp sounded better and better. I was very impressed by now…however I had no idea what was to come.

Night number 2..by Friday night the unit had been on 24 hrs and it was time to begin listening to music that has been giving my system a hard time. Music that I enjoy but that requires something special to really bring it out. What I was expecting to do is listen for sibilance, brightness, timbre, soundstage, imaging and all of those other audiophile goodies….what caught me by surprise was something altogether unexpected.

Remember this if nothing else about this amp…it communicates music and it flat boogies. This reminds me of what Frank Abela said long ago about the Mira 3, it has pace and timing but lacks Rhythm when compared to Naim…uh yeah and now compared to the Unico P. The sense of rhythm that I experienced with the Unico is part of another phenomenon with this amp that blew my mind…it’s ability to articulate every line in a piece of music and weave it together where it all makes sense both individually as expressions of an artists ability and together as a coherent piece of art. Music that I liked before I now love as I can hear and more importantly feel all of it. I can now follow all of the lines in a piece of music while still tapping my toe to the overall piece…what a joy!

A great cd to listen to to feel what I’m talking about is the Luciana Souza’s Brazilian Duos disc. When it’s right she sounds dynamic with an incredible ability to communicate, her voice like the body of a gymnast moves with speed and cat like precision and her timbre is rich.

Lucinda Williams often sounds sibilant and her lyrics brilliant but a bit difficult to understand…not with the Unico P. Late night listening Friday to Lucinda’s World Without Tears cd revealed an amp that is able to convey the difficult emotions that are always a part of Lucinda’s music. Her lyrics were easy to hear and better yet to feel and all of the music made sense as part of the whole

I didn’t leave vinyl out….I tried one of my favorites..don’t laugh…The Ozark Mountain Daredevil’s It’ll Shine When It Shines. I turned the volume up so that it was like one of my summer late night listening sessions and it sounded fabulous. Rich and warm with plenty of detail. In this area alone it was not a lot better than the Mira 3 but was at least as good.

I later changed the internal jumpers to the MC 0db setting and the results were far better than they were with the MM section with 10x5. Much lower noise and better timbre as well as a more complete presentation including very good imaging.

Oh yeah and I guess I forgot to mention bass extension and hi end and all of that, so what. It’s excellent but that is so much not the point with this amp. It’s all about musical communication…that’s what’s important isn’t it?!

Diasppointment

Hum…oh no, I HATE HUM!!!

Wait a second…don’t panic.. So how much hum? In a quiet room you have to put your ear within’ 18 inches or so to hear it. But is it just mine, is there something wrong? No. I emailed other owners and they stated that they too have the hum and that it bothers them not a bit. OK…keep in mind that I’m trading my 2 year old amp that has the same retail value as this amp…and did ya read other comments here, ya I’m keeping’ it!

Excitement

The next day I start to play my favorite music and…no you’re kidding…it sounds better yet. Holy smokes how long can this continue? Honestly I don’t know. Everyday it sounds better, it hasn’t been turned off since I first fired it up. It just keeps getting better and better.

By now as you may have guessed I've boxed up the Mira 3, thanked it for 2 years of unfailing service, and bid it farewell.

Contentment

That’s where I’m at today. Content in the fact that every piece I play sounds like music, real music. It’s a process of rediscovery as every cd and record I play sounds better than I’ve heard it before.

Well that’s about it, sorry not much in the way of audiophile stuff. Just an emotional journey for me and one I’m glad I undertook.

Thanks to Bill (Cableguy) from Audiokarma and Dale from Eugene HiFi. It’s been real…musical!

HI-FI
24-05-09, 01:11 PM
Dear ArtK :)


Thanks for the review.

I really enjoyed the review and the opened way that you talked about your new listening experience. Thanks for sharing it without fears and with your mind completely opened. I like to read this kind of comments about hi-fi that put emotions first.


Have fun

hi-fi

ArtK
24-05-09, 06:38 PM
Thank you Hi-Fi.

Tube Nube
24-05-09, 09:50 PM
Unico: Brings out the music in the recording, and a sense of humor in the listener.

Ok, I don't know that our listener-reviewer ever lost his sense of humor, but it's nice to read a review that has it all -- delighted highs, disappointed lows, contented conclusions, and humor throughout!

-Brenton

Peez
25-05-09, 01:48 AM
lovely review, however just to ask, is it okay to leave amps with valves on all the time?

HI-FI
25-05-09, 02:02 AM
lovely review, however just to ask, is it okay to leave amps with valves on all the time?


ArtK, I think that will consume your valves very fast

Biggus-Dickkus
25-05-09, 08:52 AM
lovely review, however just to ask, is it okay to leave amps with valves on all the time?

No! :o

ArtK
25-05-09, 09:19 AM
lovely review, however just to ask, is it okay to leave amps with valves on all the time?

I know many folks who do and it really isn't a problem with the smaller tubes. I would never leave on an amp that uses output tubes such as EL34's, KT88's etc. I leave my Unison on over the weekend and turn it off during the work week. During the work week I listen only to my home office system. The morning of my last work day of the week I turn on the Unison and when I arrive from work it is nicely warmed up and continues to improve all weekend...not due to the tubes but due to the solid state part warming up.

ArtK
25-05-09, 09:38 AM
Thanks for the wonderful comments. I do figure that I will consume tubes at a higher rate than otherwise, but as they cost very little am willing to accept that cost for the difference in sound quality. i aksed 2 local dealers and who are also friends and they both stated that they leave their tube pre amps on all of the time...however I'm open to listen if anyone has a compelling reason that I shouldn't.