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Am I the first owner ??? Qualia 010 !!! - Page 15

post #211 of 645
Quote:
Originally Posted by Nik
Mastergill & c. please do not go OT ...

About the Qualia:

One of the best quality of this headphone is that they love all kinds of music, they do not have any preference: I cannot say if classical is better reproduced that rock or pop or acoustic jazz...

The med-hi is bright but so natural that yuo have in front of you that voice, incredibly real ...

The bass is very clean and precise.

The dynamic is excellent, one time more, better than the Omega... oh my dear Omega

Best!
Nicola
Nik,

I hope the mid high is not as bright as the grado rs-1?

What amp are you using right now for the Qualia?
post #212 of 645
Nik,
Does the 010 use the Sony Biocellulose diaphragms?
Thanks,
Kevin
post #213 of 645
Quote:
Originally Posted by kevin gilmore
Double the voltage which means 4 times the power
Quote:
Originally Posted by ayt999
balanced has three signals per channel: positive, inverse, and ground.
dual mono has two signals per channel: positive and ground (or inverse??)
Couldn't the extra voltage and power damage headphones that are not designed for this? Or would you simply turn the volume knob to compensate by lowering the current? I can imagine this causing trouble in low impedance cans, where you'd have to have the volume knob at very very low positions.
post #214 of 645
quotes
BTW, a balanced or dual mono drive has no benefit with respect to noise immunity or noise floor at headphone signal levels.

With respect to balanced input there definitely is a difference. When you
are (or should be) driving the amplifier with a signal of 24 bits or equivalent
every little bit helps keep the dynamics high and the noise and especially
hum low.



That's cool to hear the 010s have std Lemo connectors on them. I've always like them and wondered why headphones like the HD-650s didn't use them instead of the flimsy friction fit plugs originally designed for the HD-414s.

The reason is price. Go and price lemo connectors and you will know.
Discounted the best i have been able to find so far is $42 each and you
need 2 of them. So an after market trendy cable with microfine pure silver
and a 4 pin gold xlr plug could easily run $400...

Another reason is weight. lemo's are far heavier than cheap pieces of
plastic. The weight does not seem to be an issue...
post #215 of 645
Quote:
Originally Posted by kevin gilmore
quotes
BTW, a balanced or dual mono drive has no benefit with respect to noise immunity or noise floor at headphone signal levels.

With respect to balanced input there definitely is a difference. When you
are (or should be) driving the amplifier with a signal of 24 bits or equivalent
every little bit helps keep the dynamics high and the noise and especially
hum low.
Sure at small signal levels, yes of course, that's what I said, but at the output end, driving the can, there is no noise level benefit.


Quote:
Originally Posted by kevin gilmore
That's cool to hear the 010s have std Lemo connectors on them. I've always like them and wondered why headphones like the HD-650s didn't use them instead of the flimsy friction fit plugs originally designed for the HD-414s.

The reason is price. Go and price lemo connectors and you will know.
Discounted the best i have been able to find so far is $42 each and you
need 2 of them. So an after market trendy cable with microfine pure silver
and a 4 pin gold xlr plug could easily run $400...

Another reason is weight. lemo's are far heavier than cheap pieces of
plastic. The weight does not seem to be an issue...
Ouch! 42 bux each! I had no idea they'd gotten that expensive! Wow!
A nice Neutrik GP A4M was less than 10 bux the last time I bought one.
post #216 of 645
Quote:
Originally Posted by kwkarth
Sure at small signal levels, yes of course, that's what I said, but at the output end, driving the can, there is no noise level benefit.
That's what I'd say too. There's no amplification happening anymore in the headphone-cable stage, so any possible EMF interference would just have a level of 1:1 -- hence be inaudible. It has been argued though with the headphone cable acting as antenna and inducing interferences back into the amp. I'm a bit skeptical -- but it sounds passably plausible.

post #217 of 645
Quote:
Originally Posted by JaZZ
It has been argued though with the headphone cable acting as antenna and inducing interferences back into the amp. I'm a bit skeptical -- but it sounds passably plausible.

Isn't that actually what happens with Walkmans that have FM radio? I remember mine used the headphones/earphones cable as the antenna. The reception would change when I moved the cable.
post #218 of 645
Quote:
Originally Posted by JaZZ
That's what I'd say too. There's no amplification happening anymore in the headphone-cable stage, so any possible EMF interference would just have a level of 1:1 -- hence be inaudible. It has been argued though with the headphone cable acting as antenna and inducing interferences back into the amp. I'm a bit skeptical -- but it sounds passably plausible.

As long as the cable is shielded at the amp end, there should be no problem with cable induced EMI getting back into the negative feedback loop of the amp.
post #219 of 645
Quote:
Originally Posted by Zoide
Isn't that actually what happens with Walkmans that have FM radio? I remember mine used the headphones/earphones cable as the antenna. The reception would change when I moved the cable.
In this instance the earphone ground lead is actually capacitively coupled to the antenna input of the tuner in the walkman. Different animal.
post #220 of 645
Thread Starter 
Quote:
Originally Posted by tourmaline
Nik,

I hope the mid high is not as bright as the grado rs-1?

What amp are you using right now for the Qualia?
I'm very sorry, but the RS-1 compared with the Qualia has the voice of a cat... (sorry!!!).

When I said bright I mean: "light" !!!

Best!
Nicola
post #221 of 645
Quote:
Originally Posted by Nik
I'm very sorry, but the RS-1 compared with the Qualia has the voice of a cat... (sorry!!!).
LOL
RS-1: Meow!
post #222 of 645
Thread Starter 
Quote:
Originally Posted by kwkarth
Nik,
Does the 010 use the Sony Biocellulose diaphragms?
Thanks,
Kevin
I think no... unfortunately the owner manual is only japanese.

Best!
Nicola
post #223 of 645
Thread Starter 
Quote:
Originally Posted by boodi
I'm starting to think about getting them

nik

pleeease

share your rp010 private shots
How can I do? Rudi sent to me as private, I think is not correct...
Wait jus few days and you will see all...

Best!
Nicola
post #224 of 645
Back to open air designs...When listening through the R-10's, I can hear all outside sounds, at almost full levels, and people can hear music coming from the cans, clearly. I see this as a design intended to dis-allow the frequencies from entering back into the soundspace that is heard by the ears, which would cause distortion. Even with wood cups, isn't this considered an open air design?
I could have used my 1972 Koss Pro 4AA's to fly a Sikorsky in comparison.
post #225 of 645
Quote:
Originally Posted by kwkarth
There are always and only two conductors through which electrons flow with respect to any electrodynamic driver. The voice coil of the driver has two connections, one on each end of the coil. That's it.

True differential amp designs have both a plus and minus rail voltage, B+ & B-, if you will, and ground, or 0 reference in the middle.
I was talking about interconnects so my statement should be correct... I guess the question was regarding headphone cables so I was offtopic?? anyways, I know I what I am talking about.

the balanced output of the balanced headphone amps I have seen so far does have three signal outputs per channel, even though one isn't used to drive the drivers. I assume the ground pin is connected to the cable shield.
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