Thanks for the link. I've checked it out but I don't see why Benchmark are charging for a firmware upgrade. These should be free to all purchasers of the product.
I haven't done a double blind test but I've done a lot of back to back listening comparing the DAC3 HGC volume control to the LA4 and I stand by my earlier review.
There is a lot of technical jargon on this thread regarding the HPA4/LA4 and certainly the measurements are very very impressive but the question is does it sound any better than just a DAC3 HGC and AHB2 ?
I have owned the DAC3 HGC and AHB2 along with B&W 804D3 speakers for a few years now and...