Ohm Walsh Micro Talls: who's actually heard 'em?

D-sonic M3-1500 my first impression.

Out of the box, I am pleasantly surprised at what I am hearing. Be advised, I have nothing to compare them to but my old B&K EX442 and it is no longer connected so no AB. I was concerned about loosing mid and upper range sweetness, but am no longer worried about that. What I have gained - and almost goes without saying - is a substantial bottom end and generally fuller sound. I notice no high range digital edginess or screech. I should mention here that I am soon to hit 73, so take that with a little of salt I suppose. As to my background, I am a recovering music teacher and studied and have heard all instruments play live singly and in orchestras and bands.

Music I listened to was orchestra, solo men and women's voice, choral, string quartet and other chamber groups, brass bands, and finished off with St-Saens' Organ Symphony - Ormandy, Philadelphia w/Michael Murray - Still the best version to my ears. It was an excellent finish. I will say, that I feel Ohms are finally living up to my expectations in the bass department. Some of you have said more power might obviate any desire to add subs. I'm in full agreement with that assessment and I appreciate your suggestions!

System: PS Audio Power Plant Premier > 2009 Mac Mini (AIFF files) > M2Tech Hiface2 USB to SPDIF converter > M2Tech Young DAC > Placette Remote Volume Control Unit > D-sonic M3-1500 (2x mono) > Ohm Acoustic 5000. Power and Speaker cabling is Mapleshade solid copper except amp power cables are std mfg.

Coot, did the amp come with any documentation like an owner manual? Do you know the input impedance and the voltage input sensitivity for full output? At your normal listening level is the volume control on your preamp set a little higher, lower or about the same? Good write up, it's what I expected, a more control and tunefulness bottom end.

Tobe:

There is a brief manual that covers all M3 amps. I asked Dennis about impedance. He replied as follows "The M3-1500Ms have a 60k ohm input impedance which will assure a high common mode rejection factor."

I find volume settings are no different that what I am used to with the B&K.

Hope this helps. More remarks to follow when I've done more listening. Make that when "we" have done more listening. My wife is more sensitive to pinched, screechy string sound than I am.

Re: D-sonic

I have to renig just a bit on my comment about treble sweetness. Today it is not as sweet as we would like. Still some digital edginess in upper violin range. Overall the sound is not as open as we would like as well, but still breaking in. To be continued...

Coot,

Keep in mind that the new amp is likely revealing or relating what is fed into it differently than before. If "digital edginess" is heard, I'd say it is quite possible that changes to input might address that. My Class D Bel Cantos are very revealing. I hear major differences in that regard even with changing ICs. Also definitely with DACs. Not so much on digital source, but my digital source is Wifi connected to remote music server with Toslink connection out to DAC. USB connections alone can vary quite a bit case by case as well as I understand it, though I have no experience with those. Personally, I would steer away from USB conenctions myself unless willing to experiment with different implementations.

Just some thoughts to point out that any new issues heardwith new amps may or may not be amps fault. A/B comparisons/testing with different gear might be needed to sort through.

That is my favorite version of St. Saens ORgan Symphony as well. Not perfect but a very fulfilling analog rendition no doubt.