Vsonic GR07 and GR04pro
For me, the differences of the original GR07 and MK2 are mostly subtle. From memory, I don’t really detect much of an improvement in the dynamic range; however the overall presentation seems richer, fuller, very much to my greater satisfaction. Also treble seems to have the same extension but a bit *tamer than the original. Add to that the superb new cable and I definitely prefer the MK2 to the original by a good margin.
(*For the first few days I did have some issues with treble ringing but have since solved the issue, thanks to the swiveling nozzle! Apparently my left ear needs the nozzle angled a good bit different from the right. Through a little practice, I can now find the correct angle the nozzles need to be in very quickly and rarely have to adjust them. As a result, the MK2 treble is smoother and eliminates the ringing issues I had.)
I bought the MK2 from Lendmeurears and received the GR04pro flagship for pennies on the dollar. What a little gem the 4pro turned out to be! Overall I would describe the GR04pro as a mid centric version of the GR07. Vocals are much closer and intimate and the ends of the spectrum roll off a little sooner than the GR07; so you lose a little bit of that awesome sub bass but the treble remains nicely detailed, while probably becoming completely non-fatiguing for any that find issue with the GR07 treble.
I would characterize the 4pro signature as somewhere between the Westone UM2 and Meelec A161p – a mid centric monitor signature with a forward and sweet midrange. Distortion guitars still have the really good Vsonic bite and drums still sound excellent, plus it has the same great cable as the MK2. In direct comparison, the GR07 MK2 is clearly superior and better balanced in frequency response but the GR04pro is an excellent companion to the MK2, especially if you were looking for a workout or backup pair. Considering what I paid extra to have it bundled with the MK2 and my love for mid forward signatures, it’s the deal of the century.
Edited by shotgunshane - 10/29/12 at 8:47am