anyone here experience with Jeff Rowland Model 102

Is this the Model 102 you are referring to ?

Yes. It is Jeff Rowland Model 102 (2x100W@8Ohm, 2x200W@4Ohm). I bought it few months ago. Each amplifier board inside has its own compartment and has switching power supply built in - pretty much like two monoblocks with the common power cord. It has the smallest and the latest of B&O modules (200ASC). B&O was so impressed with Karsten Nielsen MS work that they sponsored his doctorate, gave him company stocks (first time to private person in over 70 years of B&O history) and created subsidary company ICEPower making him a president.

I mentioned S300 only because there are no reviews of the Rowland's 102 and Bel Canto S300 has at least two. I wonder if Rowland made any changes to factory modules since it normally voids B&O warranty. B&O does not sell them to public and the minimum quantity is one crate (790 units). They might have some design (changes) agreement. People at B&O are sound fanatics and probably squeezed all they could from the design. There are amps (Channel Island) based on Hypex modules available to public if you want to build yourself. Rowland has 5 years warranty.

Kijanki,

thanks for post.

out of curiosity, what pre-amp are you using with these ?

Are you using the balanced interconnect for these amps ?

What speakers have you driven them with ?

Appreciate your inputs.

I am using Benchmark DAC1 (has only digital inputs and built in volume control) with 0.5m AQ King Cobra XLR. Drive Paradigm Studio 60v2 (with improved Xovers)using 6' Acoustic Zen Satori Shotgun. Paradigms are the weakest link now. "Digital" amps are in a sense not involving - as my DAC is not involving (appears at first). Benchmark is designed to supress (-40dB) jitter. Jitter from transport causes small amount of side bands (about -85dB at 3ns) very audible since not harmonically related to base frequency. Lack of "fuzz" in the sound made at first impression of missing instruments - sounded too clean (still very dynamic). Similar thing with Rowland - strong highs but no glare (no intermodulation distortions common in SS amps) - very smooth and clean. It is very good amp for the money. Older bad sounding "D" class amps were digitizing with limited resolution. ICEpower is purely analog with unlimited resolution. Very high damping factor droping to 1000@1kHz makes tube amps with poor damping sound blooming at the midrange. Tubes sound nice but similar to wearing yellow sunglasses - nice view but not real (again who knows what is real?). I had to tame Paradigms metal dome tweeter wit L-Pad (and upgrade Xover)- not because of glare from CD but from HDTV (toslink). Now is a little opaque with CD but warm and nice. 200ASC module has only about 1 degree phase shift difference 100Hz-20kHz. Phase changes between channels are probably small fraction of a degree - resulting in nice soundstage with instuments clearly positioned and more of the 3D quality. Hope it helps.