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previously i was using ps audio pre from 70s,the Cambridge audio,schiit mani and one integrated with by marantz amp i found this less noisy spacious low with much pronounced double bass ,high are also much separated,clean and over all music is much knitted ,big stage much forward presentation i played with ortofon 2m red,goldring e3,nagaokamp110.all 3 carts sounded way much better than my previous setup .in my opinion very good phono to start with ,there are options available at lesser price but one should no go below this to enjoy/justify vinyl

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Hi, I prefer Phono Box Ultra S2 over my iFi Zen Phono (2021 buy) and Project Phono Box (2007 buy).

This discrete design brought back the coherence and fatigue free listening I was searching for since my vintage preamp from the 80s died.

Sound is textured, detailed and without coloration. No grittiness. Slam and roundness of bass is better. Treble extension and air around instruments is okay. One won't notice it much.

Unit is hot to touch once operational, nothing alarming though. I believe it is working in Class A. (@Project guys - please update, if you are reading this)

Highly recommended and worthy buy in the price range. Get rid of those opamps, they never did anyone good.😉

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Airy treble, warm mids, tight bass.
No complaints. Unit becomes slightly warm after a while. Initially worried about the switching AC power adaptor exhibiting noise but so far none detected.

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Great product, small dimensions, warm sound, affordable price, great value for money.

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Excellent product.
Easily beats the socks off the phono stage of my rega amp.

Excellent service from Analog Seduction

Highly recommended.

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Excellent quality in build and more importantly on the sound once the settings have been established. Treble was much smoother on the ESL63's. Recommended.