though Posted March 4, 2005 Report Share Posted March 4, 2005 i see this as one of the features of the new HI-MD portables. can someone please tell me what that translates to in english or is it a gimmick? Quote Link to comment Share on other sites More sharing options...
Guest tony wong Posted March 4, 2005 Report Share Posted March 4, 2005 i see this as one of the features of the new HI-MD portables. can someone please tell me what that translates to in english or is it a gimmick?←no, not gimmickjust go to any Sony showroom, and try the new Hi-MD unitsonly the high end have HD digital ampNHF800 and NH700 or even NH600D(may not available in ur area) do not have digital ampu'll see the difference Quote Link to comment Share on other sites More sharing options...
though Posted March 4, 2005 Author Report Share Posted March 4, 2005 (edited) u'll see the difference←hopefully i'll "hear" the difference no, for real.... does it translate into cleaner & louder music with less power draw??? Edited March 4, 2005 by though Quote Link to comment Share on other sites More sharing options...
Guest tony wong Posted March 4, 2005 Report Share Posted March 4, 2005 (edited) hopefully i'll "hear" the difference no, for real.... does it translate into cleaner & louder music with less power draw???←kurisu, pls say a word u must hear the differencethe difference will be on the noise levelbut not sure for the "digital amp" not "HD digital amp"not sure how will a digital amp act like[added]in hk Sony showroom, they use that MDR-V300DJ, it fully cover ur earsso I can fully experience the difference in the noise levelthey do record same cd with same settings(Hi-SP) on all available modelsthe thing is : u have to be in a real silent place(thought the showroom should be)and push the volume to highest for both unit, then u will find the difference Edited March 5, 2005 by tony wong Quote Link to comment Share on other sites More sharing options...
Fat Tires Posted March 5, 2005 Report Share Posted March 5, 2005 Tony, you have a digital amp in your MZ-E710. I also have one. The digital amp offers marginally cleaner sound than a MD unit without it in my opinion, but it not noticeable with all music. The HD digital amp has gotten mixed reviews from users.To be honest, I'd look for recording features and a good EQ before I'd care about the digital or HD digital amps. Quote Link to comment Share on other sites More sharing options...
though Posted March 5, 2005 Author Report Share Posted March 5, 2005 i was planning on selling my current MZ-R900 and getting the new MZ-RH910. the 'digital amp' was just one of the new features of the new unit and was curious about what it meant. Quote Link to comment Share on other sites More sharing options...
Guest tony wong Posted March 5, 2005 Report Share Posted March 5, 2005 Tony, you have a digital amp in your MZ-E710. I also have one. The digital amp offers marginally cleaner sound than a MD unit without it in my opinion, but it not noticeable with all music. The HD digital amp has gotten mixed reviews from users.To be honest, I'd look for recording features and a good EQ before I'd care about the digital or HD digital amps.←shocking to me yes, that is right, my E710 do have digital ampthen I can tell u, HD digital amp is even a better thing(personal opinion) Quote Link to comment Share on other sites More sharing options...
atrain Posted March 5, 2005 Report Share Posted March 5, 2005 'vanilla' digital amp as has been stated before, is primarily for reducing power consumption, therefore extending battery life.the HD [high definition] is intended to offer a better 'quality' of sound.i'd second nis' opinion, amp type is way down my list of make or break features Quote Link to comment Share on other sites More sharing options...
Latexxx Posted March 5, 2005 Report Share Posted March 5, 2005 Hush!Digital amp is really a hoax. Having a digital amp means that there is no amp. I.e. the dac itself is powerful enough to drive phones. Quote Link to comment Share on other sites More sharing options...
Guest tony wong Posted March 5, 2005 Report Share Posted March 5, 2005 (edited) anyone can answer my question : do all models that have 6 band(or less) equalizer also have digital amp?the answer seems to me is : yes Edited March 5, 2005 by tony wong Quote Link to comment Share on other sites More sharing options...
though Posted March 5, 2005 Author Report Share Posted March 5, 2005 wonder if the new "play only" model MZ-EH930 will have a digital amp? Quote Link to comment Share on other sites More sharing options...
Fat Tires Posted March 5, 2005 Report Share Posted March 5, 2005 The EH930 has Sony's HD Digital Amp. Quote Link to comment Share on other sites More sharing options...
Christopher Posted March 6, 2005 Report Share Posted March 6, 2005 It seems like the consensus on the HD digital amp is skewed amongst the community and shunned amongst audiophiles. It does lack a little bit in comparison to the warmth and more mature coloration of the Auvi or Kenwood offerings, but still excels in certain genres. Whilst most say that these things offer nothing to sound and it's hogwash is a different matter, but I honestly can't agree. Quote Link to comment Share on other sites More sharing options...
though Posted March 6, 2005 Author Report Share Posted March 6, 2005 so with the digital amp, will there be more or less output compared to my current MZ-R900?how about this... the new EH930 and the new RH910.... will sound quality be exactly the same when playing back through a set of headphones? Quote Link to comment Share on other sites More sharing options...
aeriyn Posted March 7, 2005 Report Share Posted March 7, 2005 "Digital" amps are not really digital. They are what's called a Class D amplifier, which works in a different fashion from the usually seen Class B and Class AB amplifiers. A Class D amplifier works by means of differential push/pull topology.The main difference between a Class D amplifier and Class A/B amplifiers are that they produce an amplified output signal from low supply voltages without clipping. The fact that Sharp's Auvi Class D amp sounds very good is not because it is a Class D amp, but because Sharp designed the amp very well and used good parts. The HD amp used by Sony, on the other hand, is a design that is not as good and has problems with many headphones.All things being equal, however, a good Class A amplifier will always sound better than a comparable Class D amplifier. The only real advantage to a Class D amplifier is very low supply voltage requirements which translates into high battery life for portables.I'm working on a piece about amps right now, so hopefully it will help to answer all your amp questions. Information on Class D amplifiers can be found here.http://users.ece.gatech.edu/~mleach/ece4435/f01/ClassD2.pdf Quote Link to comment Share on other sites More sharing options...
aeriyn Posted March 7, 2005 Report Share Posted March 7, 2005 so with the digital amp, will there be more or less output compared to my current MZ-R900?how about this... the new EH930 and the new RH910.... will sound quality be exactly the same when playing back through a set of headphones?←It's not that they have higher output power. It is that they have the same output power but use less power to generate that output. Quote Link to comment Share on other sites More sharing options...
Guest tony wong Posted March 7, 2005 Report Share Posted March 7, 2005 (edited) "Digital" amps are not really digital. They are what's called a Class D amplifier, ←thx for ur info, from the bottom of my heartI should have touched this info 10 or more years ago thx for reminding[edit]I know I am wrong again for the following(in white now)but how about "did 6 band equliazer equal to digital amp"?am I correct on this? Edited March 7, 2005 by tony wong Quote Link to comment Share on other sites More sharing options...
maurfra Posted March 12, 2005 Report Share Posted March 12, 2005 thx for ur info, from the bottom of my heartI should have touched this info 10 or more years ago thx for reminding[edit]I know I am wrong again for the following(in white now)but how about "did 6 band equliazer equal to digital amp"?am I correct on this? ←No HD Digital Amp in the new Sony RH10 with Oled screen ?? Quote Link to comment Share on other sites More sharing options...
aeriyn Posted March 16, 2005 Report Share Posted March 16, 2005 No HD Digital Amp in the new Sony RH10 with Oled screen ?? ←Like I said, a Class D amp is not always better. Usually, it's the same or worse. All it does is waste less power... Class D amps are 90% efficient on average, while Class AB amps (the type typically in audio equipment) waste a good bit more juice.Sony may have realized the issues the HD amp has with certain headphones and removed it for compatibility reasons... Quote Link to comment Share on other sites More sharing options...
dogville Posted March 27, 2005 Report Share Posted March 27, 2005 It's not that they have higher output power. It is that they have the same output power but use less power to generate that output.←Do you know what's the output of the MZ-RH10 and guess the rest too?. I've read that it is 5 mW and that seems absurd. my old MZe20 has 15mW. This is an importan spec before buying a portable gadget.bye Quote Link to comment Share on other sites More sharing options...
atrain Posted March 27, 2005 Report Share Posted March 27, 2005 i'd think the days of higher than 5x5mW outputs has passed for minidisc, battery life tends to be a smarter commercial option Quote Link to comment Share on other sites More sharing options...
weiswang Posted April 9, 2005 Report Share Posted April 9, 2005 "Digital" amps are not really digital. They are what's called a Class D amplifier, which works in a different fashion from the usually seen Class B and Class AB amplifiers. A Class D amplifier works by means of differential push/pull topology.The main difference between a Class D amplifier and Class A/B amplifiers are that they produce an amplified output signal from low supply voltages without clipping. The fact that Sharp's Auvi Class D amp sounds very good is not because it is a Class D amp, but because Sharp designed the amp very well and used good parts. The HD amp used by Sony, on the other hand, is a design that is not as good and has problems with many headphones.All things being equal, however, a good Class A amplifier will always sound better than a comparable Class D amplifier. The only real advantage to a Class D amplifier is very low supply voltage requirements which translates into high battery life for portables.I'm working on a piece about amps right now, so hopefully it will help to answer all your amp questions. Information on Class D amplifiers can be found here.http://users.ece.gatech.edu/~mleach/ece4435/f01/ClassD2.pdf←That's quite a lecture, very comprehensive! Thanks!So, do you think/know that "HD digital amp" (in SONY's term) is really better than "digital amp"? How different? Is this worth paying for the extra? Quote Link to comment Share on other sites More sharing options...
weiswang Posted April 9, 2005 Report Share Posted April 9, 2005 Sorry, missed several posts.Got the point: HD digital amp is a bit fishy... Quote Link to comment Share on other sites More sharing options...
banjo Posted April 10, 2005 Report Share Posted April 10, 2005 To my recollection, the Sony HD amp fared quite well when first reviewed (at the time of release of Nh1, Nh3d etc.). Correct me if I'm wrong?From my own perspective, I have put up quite a few listening hours on both the DS70 (Sharp/Auvi digital amp) and the NH1 (Sony 'High-Definition' digital amp). With comparable recordings and settings, I would favour the NH1 sound over the DS70. But, I don't think that isn't much in the difference: the devices do have different characteristics but overall I think that they weigh-in close to each other.So far, the discussion in this thread appears to paint the HD amp in quite a negative light. But is it so bad? Or are we debating about those last few percentage points that seperate it from comparable devices? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.