What People
Are Saying

After a month of owning the icOn 4 Pro, I must say that I like it very much. It has no (or perhaps very very little) signature of its own. The significant more volume steps and the ease of use brings also happiness. I did have many preamps over the last 50 years but this jewel beats them all…


The Netherlands

The amp is performing superbly

Hello Pal,
Just a quick update on the preamp. Results of listening tests with classical and popular music are excellent! The amp is performing superbly bring out the smallest details of my recordings.

Mark Mackey, UK

Very nice wide open detailed soundstage

Dear Pal,

Just wanted to let you know that I’m very happy with the preamp.

At first glance it sounded almost the same as my 300B preamp, but without
the noise and hum. Later on, as the preamp got burned in, the sound opened
up and I got a very nice wide open detailed soundstage. After that, the
bass got very quick and tight, much better than the 300b amp did.

The preamp also sounds really nice on a low level. With the 300b amp I
sometimes found myself with peeping ears because I played too loud in order
to get a ‘live sounding’ sound.

The ultra low noise of the preamp is a big plus. The noise level coming
out the horn speakers is very acceptable.

Best Regards,


Improvement on both clarity and bass

Improvement on both clarity and bass

Hi Pal,
Well received the icon today and setup into my system.
Thanks for putting my name into the unit, it looks so unique. I tried many CD today using TVC mode and sound similar to my Django, with improvement on both clarity and bass.

Richard Chow, Hong Kong

Very refined.

Daarna begon hij te zingen en wel in het hoog wat ik omschrijf als ; zijdezacht, niet Upfront. Het laag kwam wat later en wel wat men niet zozeer zou verwachten van een buizentrap maar meer van een torrenbak.
Laag is niet “zwabberig”maar strak en is weg als het weg moet zijn.
Stemmen zijn altijd met kippenvel aanwezig, blijf hier elke dag van genieten.
Wat mij ook is opgevallen dat in de stemmen totaal geen geforceerdheid aanwezig is. Bij de hoge vrouwenstemmen blijft de stem overeind, zijdezacht.
De Icon geeft je ook een kijk in de instrumenten. Het volume is zeer aangenaam, of comfortabel zoals u wilt, in bediening. Zeer verfijnd.
Voldoende inputs en outputs voor mij.

Fons de Boeck, The Netherlands