Just found some info about HF5 (after recabling my), and my opinion that unfortunatly, they have different driver than ER4s Knowles Acoustic ED29689. ED29689 have 3 terminals, and another polarity than HF5 driver.   HF5, blue wire (+) on the left side, 2 terminals                      ER4...

Quote:     Hi! I think it acceptable.

I've made and combine RMAA measurements using SB Live 5.1 and SB Live 24 and can say that:   THD is around 0.0031% (-90dB, better than in datasheet) or less IMD+noise is around 0.0064% or less S/N ratio is -100dB, or better, and noise floor is very clean (Murata beads do their job well :)...

Entered last week. Thanks!

I'm in too :)

Erik, how do you think - using of separate voltage regulator for analog part can improve performance?

When I knew about GrubDAC yesterday, I immediately ordered kit. Hope, it will be far better than my previous attempts to find cheap and good or decent sounding compact DAC (PCM2902 and PCM2704 were really bad).

Quote: Could you please give full RMAA results (especially THD and IMD graphs)? Character of distortion is more important. Also Audigy SE have bad quality resampling on 44.1kHz, better use 48kHz for measurements.   

Interesting company. Good price for armature design! Prefer Crius personally.

Hi! Thanks for the post! I had already changed cable on my HF2. It was tricky :)   Here you can find how one Russian guy has done this two years before http://theapplegeek.ru/archives/2656   But what I found personally, is that HF2 (and HF3, HF5, I think) have couple of small SMD...

It's about 0204

I have read in one of the documents on E-MU site (good approach to design): "E-MU USB products have become highly regarded in the music listening community for their accurate and uncolored audio reproduction. We went a little crazy on this product and used premium-quality, digital-to-analog...

I am only waiting my HF5. I don't know yet how much bass they have. I think they have very precise frequency reproduction (if not overdriven). Can compare them with bass heavy Xears TD100.

Ironically, but you can read in some old articles about "fabulous bass", "tight bass", and "low sounds are amazing". All about ER4. "Bass is phenomenal; you will hear low-frequency sounds that you didn't even think were possible". Author also compared them with "reference" Stax SR-Lambda Pro...

  Quote:   I understand  Thank you.