Unison Research S9 Integrated Amplifiers

3.5/5 (2 Reviews)


Product Description

  • Output Power: 30W
  • Inputs: 4 line
  • Input Impedance: 47 kOhm
  • Feedback factor: 14dB


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Reviews 1 - 2 (2 Reviews Total)

User Reviews

Overall Rating:5
Value Rating:5
Submitted by Jay Mackenzie a AudioPhile

Date Reviewed: January 1, 2015

Bottom Line:   
Stunning sounding single ended class A amp that entertains like few others and delivers the sonic goods with aplomb. An addictive blend of musicality and muscle with a solid, rounded tuneful bass, an expansive and expressive midband coupled with the sweetest highs, makes for an utterly engaging experience and long listening pleasure. The music ebbs and flows in an organic way only the very best components can conjure with unfettered dynamics, explosive transients, and highlighted tonal contrasts and shading that simply stagger...
System matching may be an issue (like all components) if your ancillary equipment is not up to the job but let me tell you fellow sonic heaven seekers that when coupled with Magnepan 3.7i speakers and connected with Transparent Ultra cable a certain magic occurs that even Dynamo would find hard to believe!
System conprised of :
Turntable - Roksan TMS/Funk F.XR/Koetsu Jade Platinum
CD Player - Lector CDP 707/7TPS
Amplifier - Unison Research S9
Speakers - Magnepan Magneplanar 3.7i
Cable - Transparent Ultra
(All equipment 2014 Spec)

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Used product for:   Less than 1 month

Duration Product Used:   AudioPhile

Product model year:   2010



Overall Rating:2
Value Rating:1
Submitted by mark a Audio Enthusiast

Date Reviewed: May 8, 2012

Bottom Line:   
This amp is horrible. The shrill of the SV572 sounds thin ,sterile, annoying and makes you want to leave the room and make coffee. Sounds loud and powerful but you just keep turning it down. Change i/p tubes to amperex then mullard and still not enough warmth .Change interconnects from chord sig to cardas all copper extra warm and change speaker cables to pure copper. Get rid of any silver . Yter makes ears bleed. Now I can stay in same room to llisten but no detail or inner resolution. May only work with UR cd player as smooth and warm as source. Cannot drive sonus faber speakers. Bass maybe ok with dynamic i/p tubes but thats it. Cannot buy o/p tubes anywhere only UR and they charge double. Disaster amp. You need to home demo or run away as fast as you can. Build quality and looks mean jack when it sounds this bad. I may have just saved you from Hi Fi Hell !

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Used product for:   Less than 1 month

Duration Product Used:   Audio Enthusiast

Product model year:   2010




Reviews 1 - 2 (2 Reviews Total)

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