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Denon AH-D7100 - Page 2

post #16 of 85
Croozer:
has a impedance of 25 ohms

That's an error.

Low impedance doesn't equal easy driving, by default...

post #17 of 85
Quote:
Originally Posted by Primetime86 View Post


No don't be silly you are not rambling at all! That was actually brilliantly described and I completely agree with you especially about people changing headphones because of suitability!

I own the Mad Dog and they sound close to technically perfect as as far as Hifi closed backs go; but they are also similar in sound signature to the 650. When comparing to my Denon D600 the Mad Dog just sounds like it has no personality and doesn't pull you into the music. That's when I found I'm a Denon fan!

 

Mad dog sounds like a sleepy can for me then - I find "personality" very irritating when I'm extreamly relaxed and trying to sink into a virtual comma :o)

post #18 of 85
Quote:
Originally Posted by Croozer View Post


The Fostex TH-900 has a impedance of 25 ohms, the same as the D7000, why would it require any more power?


You also have to take into account the sensitivity of a can which is measured in db at 1khtz.  Not my area but pretty sure that's the key measurement.

post #19 of 85
Quote:
Originally Posted by MattiaFalsetti View Post
 

If you want, you can write reviews and comments about these Headphones, I'm going to buy them and I need to know your opinion.

(Sorry for my english, but i'm writing from Italy)

 

I have My D7100 for more than a year, and it still can make me very happy in PC gaming and for listen to music, the sound is amazing, warm, deep, controlled and detailed bass, even with classic or relax music, this can its simply can make me happy with any kind of music and with the right dac/amp, sound its just amazing.

I have Yulong D100 MKII and its the best dac/amp for denon IMHO.

I have before DACmagic and HR desktop amp i also have HiFiMAN EF5, but the D100 is the best for D7100.

I also have HD650, D5000 and D7000 (which i sold recently) and i can sure say that D7100 is a good step over them all.

post #20 of 85
Quote:
Originally Posted by VladGuardian View Post
 

That's an error.

Low impedance doesn't equal easy driving, by default...

 

It affects how easy it is to drive though.

 

Sensitivity is the most important thing as in db/mw, how much volume you get with 1 mW not accounting for headroom. The impedance being lower means that there will be more Watt's going into the headphone. 25 ohm 106db/mW would for example be easy to drive compared to 25 ohm 89db/mw. As 25 ohm 106dn/mw is easier to drive compared to 600 ohm 106db/mw

post #21 of 85

Who want to hear what a BASS these miraclous headphones could reproduce, SHOULD hear albums: (1997) "Come My Fantics", (2000) "Dopethrone" or (2010) "Black Masses" of british doom/stoner band Electric Wizard :) Even with EQ is off, the basses are awesome from my AK120 :L3000: genuine pleasure. With this type of sound I don't need Fostex TH-900, even an amplifier for AK120 :D (..emotions..)

Need to say, sound from my Cowon J3 (output power = 29 mW / per channel) is also very decent (though not so tight and monolithic, as from AK120). This proves - these headphones were really made for universal portable use.

Fast comparison: sound from AK120 is more "noble" and "generous", than from Cowon J3, basses, upper bass, lower mids is more tight on AK120.

(pitiful, Iriver doesn't specify output power for AK120/AK100... strange thing to me :confused:)

J3 gives some simpified sound "picture" (at around 10-20% subjectively), but still very musical.

Also, heavy sounds of Electric Wizard not so fatiguing to my ears from AK120 (as it is from J3).

I should notify once more - listening with EQ is off.

 

roman r:
You also have to take into account the sensitivity of a can which is measured in db at 1khtz.  Not my area but pretty sure that's the key measurement.

You're right, sensitivity is even more valuable, but I think Eternal Schism is one who is closest to the truth among us all, with "milliwatts per decibel" quote...


Edited by VladGuardian - 1/13/14 at 2:33pm
post #22 of 85
Thread Starter 

Sorry if I'm late.. so, finally I've bought them about 2 month ago, i never heard something like these headphones, maybe price is too high but they worth all that price, I use them with an iPod classic 7th generation connected on a Fostex HP-P1 with DAC, the sounds are very close to perfection.

post #23 of 85
Quote:
Originally Posted by MattiaFalsetti View Post
 

Sorry if I'm late.. so, finally I've bought them about 2 month ago, i never heard something like these headphones, maybe price is too high but they worth all that price, I use them with an iPod classic 7th generation connected on a Fostex HP-P1 with DAC, the sounds are very close to perfection.

 

Nice setup and not late at all.

 

I'm feeling similar about DX100 and D7100. Very HiFi sounding......i.e. struggling to stop listening once I start.

post #24 of 85
roman r:
Very HiFi sounding......i.e. struggling to stop listening once I start.

Hmmm... D7100 are very controversial headphones...

Last time, connected to Arkhipov'S Melo they sounded very LoFi for me... :angry_face:

Other times, connected to AK120 it seemed so spectacular...

So I concluded that they DOESN'T LIKE powerful amplification.

AK120 has no powerful amps, so sound is really great.


Edited by VladGuardian - 2/18/14 at 3:49am
post #25 of 85
Thread Starter 
Quote:
Originally Posted by VladGuardian View Post
 

Hmmm... D7100 are very controversial headphones...

Last time, connected to Arkhipov'S Melo they sounded very LoFi for me... :angry_face:

Other times, connected to AK120 it seemed so spectacular...

So I concluded that they DOESN'T LIKE powerful amplification.

AK120 has no powerful amps, so sound is really great.

If they don't sounds very well with a powerful amplification I think is better spend 700 dollars for the couple: HP-P1 (amplifier plus DAC) and an iPod Classic, than spend 1400 dollars in vain for the AK120 and just for have all in one, I think also the quality is quite better with a separated amplifier.

post #26 of 85
I recently upgraded my iPhone 4 to a 64gb 4s. I've noticed slightly more detail and air - seems a cleaner sound.

I'm very happy with this partnership - with my 7100 - as well as with my DX100 which adds a little warmth and composure.

Only went back to Novo amp one other brief time and didn't notice any issue on that occasion.

My current view is I'm happy to forfeit a tad of hifi for the flexibility of a mobile rig and this is specifically for home use. However I'm only willing to do this because the D7100 performs so well.
Arguably it's too musical to allow me to be sitting down or even "chained" to a desk amp.

When the D7100 are on, I let the party commence ;o)
Edited by roman r - 2/21/14 at 3:05am
post #27 of 85

Hi all, just wanted to echo OP's thoughts here as another D7100 owner. It's really among the best headphone for portable high end music, I've never had anything sound so good straight out of an iphone or ipod jack. With proper desktop amplifications and settings it can be beaten by cheaper headphones, but considering what you get as a whole package it's a bargain.

post #28 of 85
Thread Starter 
Quote:
Originally Posted by roman r View Post

I recently upgraded my iPhone 4 to a 64gb 4s. I've noticed slightly more detail and air - seems a cleaner sound.

I'm very happy with this partnership - with my 7100 - as well as with my DX100 which adds a little warmth and composure.

Only went back to Novo amp one other brief time and didn't notice any issue on that occasion.

My current view is I'm happy to forfeit a tad of hifi for the flexibility of a mobile rig and this is specifically for home use. However I'm only willing to do this because the D7100 performs so well.
Arguably it's too musical to allow me to be sitting down or even "chained" to a desk amp.

When the D7100 are on, I let the party commence ;o)

however here's my configuration

post #29 of 85
Quote:
Originally Posted by roman r View Post
 

 

D7100 is much much better to my HD650 build wise. I'm taking into account the cans, cables, beautiful matching stand and packaging. D7100 is also better soundwise.

 

I found if I'm wide awake HD650 is lacking in fun and immersion and that'ss from either GS Novo amp or grace m903 - i need to be tired to appreciate them.

 

An area that isn't covered is matching headphone with my concious state. We all know the HD650 is  dark headphone. But what does that really mean. If the brightness of a TV is set very low and you watch the TV in a dark room the picture comes across perfectly. But the same picture in a very very bright room and you can't see the picture well. For me it's the same with headphones. A dark headphone like the HD650 needs a dark "state of mind" i.e. I need to be tired to be able to hear the sound as it's meant to be. If I'm wide a wake, upbeat, then a dark headphone won't portray the sound to me clearly I need a bright headphone when in that conscious state.

 

That is I believe why people keep changing headphones. No headphone can suit all moods, not until they come up with a "brightness control" on them - lol.

 

Hope I'm not rambling.

much better build than the HD650's? seriously? HD650's are built to accommodate all head sizes and is mostly metal. the HD650's are by far better built than the D7100's. and... their cheaper.

post #30 of 85
Quote:
Originally Posted by Sargatanas View Post
 

much better build than the HD650's? seriously? HD650's are built to accommodate all head sizes and is mostly metal. the HD650's are by far better built than the D7100's. and... their cheaper.

I had an HD580, and HD600 and neither of them felt very sturdy. I'm pretty sure he was saying that the build quality in his D7100 is better than in his HD650, which is what he should get by paying as much as he did for his D7100. He wasn't saying that they didn't fit his head.

 

Also, the HD650 isn't made of mostly metal, it's maybe 35% metal. The grills, the adjustable inner part of the headband, and the metal screen by the drivers. 

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