Unison Research Simply 845 Integrated Amplifiers

Simply 845

Single-ended direct heated Triode integrated amplifier

User Reviews (5)

Showing 1-5 of 5  
aLBERTO   a Casual Listener [May 26, 1999]

Outstanding!

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5
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Jens Ruud   Audio Enthusiast [Jun 11, 2001]
Strength:

Drive. Soudstage. Transparency. Musicality.

Weakness:

Big and heavy(36 kg!). Produces a lot of heat.

This one is really good. Has enough power to drive most speakers. An ideal integrated SET.

Similar Products Used: A lot.
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5
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5
Jose Ramon   an Audio Enthusiast [Apr 12, 1999]

I changed all the input tubes for Telefunken ECC82 and ECC83 Diamond marked (). WHAT A REVELATION!!The sound improves DRAMATICALLY. It´s like a new amp. I can´t say what part of the sound improves cause EVERYTHING is better.
If you find these (hard to find) tubes (remember, with the mark at the bottom) and you own this marvelous amp, buy it!
For these tubes, and with this amp, maybe one hundred stars is not enough!

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5
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Jose Ramon   an Audio Enthusiast [Mar 28, 1999]

This is one of the very best amplifiers that I´ve heard. My previous amps were Smart 845 monoblocks and this integrated beat the Smarts in every area. I think that the Simply 845 sounds better cause have a passive pre-amp stage and it´s a true zero feedback design (the Smart 845 has 6dB of feedback, no matter what dealers says) not to mention the integrated nature of the electronics (less cables, more simplicity, etc).The sound is very powerful (heard it to believe what 24W of direct heated single-ended triode power can do with your insensitive speakers is a revelation), clean, transparent, dinamic, and VERY 3D. Vocals has the usual presence and naturalness that it´s the SET halmark. It´s the dream amp for the Jazz lovers and, because has deep bass, sounds very powerful with Reegae and Rap.It´s very well build amp (35 Kg.) with a gorgeous look (Real wood and Black iron) and has an uncommon kind of output transformers (toroidals instead EI). This amp sounds wonderful with Spendor SP-100, ProAC response 2.5, Sonus Faber Guarneri Homage and above all, sounds AMAZING with the Tannoy GRF Memory TW that I own.
This amp has two ECC83 for the input stage and two ECC82 for the driver Stage, and, of course, two big 845 as power output tubes. After many changes I replaced the ECC83 for the lower gain equivalent General Electric 5751 and the ECC82 for the RFT ECC82.
Don´t be afraid of the output power of this amp, this is a VERY powerful and delicate amp.
I STRONGLY recommend this amp to any serious music lover.

For looks, sound and build quality FIVE STARS (no doubt).

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5
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Showing 1-5 of 5  

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