the macbook air DAC is brilliant. i hear absolutely no difference between it and the cambridge audio CXN (streamer and DAC), when pluggd into marantz pm6004 with psb b25 speakers.   note, i had tested teh CXN against the denon (heos?) streamer, and against teh denon plugged into the CXN (CXN...

Dude, antilog? log base what? if log base 10 then the antilog(z) = the number x such that logx=z. So if this is base 10 then if log_10(x)=z, 10^z = x, or if base e then exp(z)=x; writing it like this is much less confusing then antilog(z), especially when otherwise the base is complete...

this is a great answer too; thanks :)

  I'm not trying to say anything, but yes that was what i was asking.   Quote:   This is the answer! Thanks!   Quote: Thanks.

  Thanks guys, these are all great answers!    But they don't directly answer my question (although they might indirectly).   Let me rephrase; is it possible for a certain amp to drive headphones better than another amp which has a higher maximum volume? assume the output impedance of the...

if one amp is louder than another does that necessarily mean it will drive cans better? let's assume amps output impedance is zero. 

      Thanks for this response, I really appreciate the effort adn should have thanked you earlier. I'm not sure I'm 100% clear on this though...From what you say I would suspect  that lower impedance cans through the same amp would be more likely to distort. So if my 32 ohm dt660 sound...

OK so this is a bit embarrassing and really shows my non-enginering/techie kinda mind but I just have no idea if sampling rates adn bits are affected by the CD drive or the software when doing a rip. yes i realise in itunes I cna schoose different formats (ALAC, mp3, etc) but is there other...

yeah, especially since the valhalla has output impedance of 30ohms...

I want to tame the sibilance but keep the rest as flat as possible. the 880 has a peak around 7.5 khz so i want to dampen that, and generally roll off the treble a bit too, just a bit.. don't tell me to use EQ though as i want to listen to vinyl, so no EQing will be possible

Thanks for the reply. I have the 250ohm DT880. Trying to decide between buying the LD mk3 and the magni. Or an m-stage on ebay but i'm sceptical about that one.

  apologies if this one has already been answered but what tubes can tame sibilance on dt880 so I can use with record player that has no EQ?   Secondly, what is the output impedance of this amp? I can't find specs for the headphone out output impedance, only the preamp output impedance. I...

The only specs I can find for the LD mk3 indicate preamp output impedance of 600 ohm; I doubt this is the output impedance of the headphone out as 600 ohms is a lot. Some people say the ideal amps has an output impedance of 1/10 to 1/8 the headphone impedance, so I'm trying to see how well this...

Hey mate I'd appreciate if you'd give me your opinion on teh following: is it all about volume? in other words, if the volume is enough do i need an amp? otehrs have said no, that certain frequencies need higher voltage and therefore although i can't bare my volume on my macbook being more than...

Thanks for this...     According to the specs on their respective sites the vali produces 220MW at 300 ohms whereas the mk3 produces 350 MW at 300 ohm, so the mk3 is a lot more powerful. It has a lot less distortion too and I've read bad things about the vali. also, if i'm going tubes i...