Raal Ribbon Headphones - SRH1A
Jun 8, 2022 at 6:02 PM Post #5,357 of 7,885
Hmm, no offence intended, each to his or her own.
But personally I do NOT try to "work" and listen to music at the same time, except when I am trying to learn a new piece at my piano.
And basically ALL the music I listen to is captivating enough to demand my FULL attention.

I never have music running as a background to any other activities. And especially so with headphones like the RAALs where the SQ is a very important aspect of using them in the first place.
Background music while trying to work will inevitably shift your attention between actually listening to the music, and the work you are supposed to do,and both will suffer.
There is no escaping that.
Just facts of how our brains work.
Cheers CC
**** that's a weird statement bud.

Most of my listening is while I work. If I had a spare 40 hrs a week to then also listen to music I would. That'd be nice wouldn't it!

@Aleksandar R. Those photos are great!
 
Jun 8, 2022 at 6:12 PM Post #5,358 of 7,885
will we be able to use the new HP's with the Tl-1a?
 
Jun 8, 2022 at 6:14 PM Post #5,359 of 7,885
will we be able to use the new HP's with the Tl-1a?
Yes it even comes as a bundle in the Standard Version, unless your order the "naked" Version of the CA-1A
 
Jun 8, 2022 at 6:17 PM Post #5,360 of 7,885
I'm certainly not going to argue with that. But if I didn't listen while working, I'd be down to listening for a half hour a day at most. As it is, I get that half hour of prime listening, plus another 8-10 hours of listening while working. I count that as a win, at least until I'm able to retire and all time is prime listening time. To bring it back to this thread, I bet there are others like me, meaning there may be a market for pads that accommodate glasses-wearers.
CA1a feel better with glasses than SR1. I doubt that different pads would be needed, but let's gather the impressions first.

Further segmentation of the pads would not work. There must be a good distance between the gaps, or the foam folds over in wrong direction, instead of just being compressed. Bringing the front gap higer would mean closing the top gap, reducing ventilation of ears, so more sweat and not comfortable in long listening sessions, so another gap must be made , maybe 15 degrees towards the back...
 
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Jun 8, 2022 at 6:25 PM Post #5,361 of 7,885
If using a speaker amp, which input do you use? 32 or 16?

And looking at the cable. Can I make my own cable for these? The super low impedance looks tricky, hard enough finding good wire for normal headphones.
 
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Jun 8, 2022 at 7:03 PM Post #5,362 of 7,885
Yes it even comes as a bundle in the Standard Version, unless your order the "naked" Version of the CA-1A
so I assume unlike the sr1a we wouldnt need to use the adapters?
 
Jun 8, 2022 at 7:04 PM Post #5,363 of 7,885
so I assume unlike the sr1a we wouldnt need to use the adapters?
Correct, the CA-1A doesn't require the baffle Compensation.
 
Jun 8, 2022 at 8:15 PM Post #5,364 of 7,885
If using a speaker amp, which input do you use? 32 or 16?

And looking at the cable. Can I make my own cable for these? The super low impedance looks tricky, hard enough finding good wire for normal headphones.
Well. if you have am 4 Watt/8 Ohms SET amp, use 16 ohms. If you have more than 10W at 8 Ohms, use 32 Ohm input.

If making your own cable, set the loop resistance from 0.2 to 0.4 Ohms and don't go over 0.8uH at total cable length.
The original cable is 0.23 Ohms and for that resistance the 32/16 Ohms specs are valid.
Avoid pleating the cable in such a way that creates crosstalk between channels.
 
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Jun 8, 2022 at 8:50 PM Post #5,365 of 7,885
I did not mean Foam replacements, but Foam for the gaps, in case we want to Experiment with sealing the gaps.

I just assumed that they are cut out from the rest of the earpad.
We cut just laser-cut segments from the wedge shaped piece of memory foam.
After that, we dye the foam in black. The dye chemically bonds to polyurethane and can't be washed off or stain the skin.
We sure could produce a full pad, but the midrange gets sucked-in and bass becomes too large, so I gave up on that.
20220609_002335.jpg
 
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Jun 8, 2022 at 8:53 PM Post #5,366 of 7,885
@Aleksandar R. Hmm. So avoid braiding.

What about quad mic type cables that have the conductors twisted internally?

For example, could you use the Mogami W2534 at around 2m length?

https://mogamicable.com/category/bulk/microphone/quad/

Ignore the shield unless you need that ? Likely to be stripped off.

And amp will be 100W+ at 8ohm. So just use the 32ohm input then?
 
Jun 8, 2022 at 8:59 PM Post #5,367 of 7,885
Would you mind sharing the dimensions of the cups? Width and length? Just trying to get a picture of how large the cups are and how they fit on my head / over my ears.
The oval opening inside the pad is 79 x 55mm, or 3.1" x 2.2", so it's one of the largest out there.
the outside dimensions are 117 x 95mm or 4.6" x 3.7".
 
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Jun 8, 2022 at 9:09 PM Post #5,368 of 7,885
@Aleksandar R. Hmm. So avoid braiding.

What about quad mic type cables that have the conductors twisted internally?

For example, could you use the Mogami W2534 at around 2m length?

https://mogamicable.com/category/bulk/microphone/quad/

Ignore the shield unless you need that ? Likely to be stripped off.

And amp will be 100W+ at 8ohm. So just use the 32ohm input then?
According to my measurements, inductance of Mogami cables is higher than specified.
If I'm right, I'd rather use W2893 in star-quad cuz of higher resistance that would reduce the length, thus reducing the total inductance.
besides, the topology of W2893 SHOULD have less inductance than W2534, but the specs says the opposite.
Since I already don't trust their inductance specs, I'd use W2893, but definitely, try both.
the specs don't say anything about inductance in star-quad configuration, and that should drop the inductance significantly.

Yes, definitely use 32 ohm input.
 
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