Toddy
100+ Head-Fier
Just found my old HD 480. Must have bought it in 1994 or 1995 when the HD 580 was the unaffordable ‘high end flagship‘ (not counting the then still available original Orpheus 
).
).
Show us your vintage headphones!
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Beyerdyanamic DT48
get too much sweat/water on the cold metal parts,
I don't know what to do about it.
pretty good headphones, but insufferable because of the cold metal and sweat/water absorb on the part that close to your ear
measurement:
*looks almost the same as the Telefunken TH-60 before.
get too much sweat/water on the cold metal parts,
I don't know what to do about it.
pretty good headphones, but insufferable because of the cold metal and sweat/water absorb on the part that close to your ear
measurement:
*looks almost the same as the Telefunken TH-60 before.
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Good to know I can totally avoid these then.Beyerdyanamic DT48
get too much sweat/water on the cold metal parts,
I don't know what to do about it.
pretty good headphones, but insufferable because of the cold metal and sweat/water absorb on the part that close to your ear
measurement:
*looks almost the same as the Telefunken TH-60 before.
No amount of fast transients is worth that kind of inferior tonal accuracy.
Still I definitely like them, they really have calm sound signature and not bass or scream too much
they build really good and I can leave them on the table while for other headphones I store inside case.
Flat aluminium diaphragm instead of light wight Mylar is a bad idea.
but as evener of cheap speakers like Sony Apm D5 (that using some flat aluminium diaphragm for the woofer), I definitely like this unusual idea
Still have to find some conclusion for the sweat/water absorbing on the top of the driver.
takato14
Headphoneus Supremus
@legopart DT48 isn't a flat aluminum diaphragm, it's a dome but its inverted compared to a modern design. its also on a silk suspension. Much more rigid than a mylar cone for not much more weight, especially considering the thicknesses required to make a mylar diaphragm back in the 60s.
Also, @GREQ, it's not that inaccurate. That measurement is lacking a seal. Here's my 1960s DT48 S:
The transducer is extremely capable, boasting incredible resolution, dynamics and extension both ways. However, the housing causes that nasty 4kHz resonance peak and the only way I could see to get rid of it would be some very precise dremel-based surgery to remove the front acoustic lens. oof
Also, @GREQ, it's not that inaccurate. That measurement is lacking a seal. Here's my 1960s DT48 S:
The transducer is extremely capable, boasting incredible resolution, dynamics and extension both ways. However, the housing causes that nasty 4kHz resonance peak and the only way I could see to get rid of it would be some very precise dremel-based surgery to remove the front acoustic lens. oof
Thanks for the graphs.@legopart DT48 isn't a flat aluminum diaphragm, it's a dome but its inverted compared to a modern design. its also on a silk suspension. Much more rigid than a mylar cone for not much more weight, especially considering the thicknesses required to make a mylar diaphragm back in the 60s.
Also, @GREQ, it's not that inaccurate. That measurement is lacking a seal. Here's my 1960s DT48 S:
The transducer is extremely capable, boasting incredible resolution, dynamics and extension both ways. However, the housing causes that nasty 4kHz resonance peak and the only way I could see to get rid of it would be some very precise dremel-based surgery to remove the front acoustic lens. oof
Big-oof indeed.
Modified DT 480 - 25 Ohm from the 1980’s I believe, the DT 48’s sister headphone. Sadly don’t have any measurements on my pair. Spent a long time modifying these (some stuff also done inside the housing) but need to get to measuring them so I can fine tune the mods more. But all I can say right now, it sounds really good and is one of my best headphones. The transducer is one of the best I’ve come across, it’s honestly shocking how much it improves if you give the headphone some tlc.
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takato14
Headphoneus Supremus
dunno how that happened
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StRandom
New Head-Fier
Hello everyone. New to the site, but managed go through the whole thread. As I've been collecting vintage headphones lately I will be posting here about the stuff I have. I'll start with the ones not mentioned before and then will go on with the usual suspects - vintage beyers, sennheisers and pioneers.
Scan-Dyna K72x
Produced circa 1980. Has volume/tone control with a belt clip and a very peculiar-looking paper-cone 75mm driver. Sounds more airy than a typical 8Ohm product of the 70s and has a great look.
Scan-Dyna K72x
Produced circa 1980. Has volume/tone control with a belt clip and a very peculiar-looking paper-cone 75mm driver. Sounds more airy than a typical 8Ohm product of the 70s and has a great look.
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StRandom
New Head-Fier
Tesla ARF 310
Tesla Chechoslovakia made audio equipment and PA systems for recording studios, television/radio for the Eastern block back in the days.
Built beginning of 80s. The pair I got was extensively used in a recording studio in Moscow to record vocals. It had been even rewired to mono so I had to resolder it back to stereo.
It terminates with a DIN-5 plug which was prevalent at that time. With impedance of 200Ohms they require some power to drive them. Earpads (or in this case earcushions because they are so soft) make them extremely comfortable but lead to less bass.
Opening the headphones ...
Removing a rubber dampener with some foam in the middle reveals a 32mm driver with a big magnet. No further attempts to analyze the driver made as it's apparently glued inside.
The sound generally is quite mediocre with one exception - the vocals, and I guess that's the prime reason they were used in the studio. Mids and in particular the vocals are very pronounced and to me sound even more exiting than with DT48. Bass is there but it is quite subdued due to too soft cushions, so some possible upgrade in the future is this direction.
Tesla Chechoslovakia made audio equipment and PA systems for recording studios, television/radio for the Eastern block back in the days.
Built beginning of 80s. The pair I got was extensively used in a recording studio in Moscow to record vocals. It had been even rewired to mono so I had to resolder it back to stereo.
It terminates with a DIN-5 plug which was prevalent at that time. With impedance of 200Ohms they require some power to drive them. Earpads (or in this case earcushions because they are so soft) make them extremely comfortable but lead to less bass.
Opening the headphones ...
Removing a rubber dampener with some foam in the middle reveals a 32mm driver with a big magnet. No further attempts to analyze the driver made as it's apparently glued inside.
The sound generally is quite mediocre with one exception - the vocals, and I guess that's the prime reason they were used in the studio. Mids and in particular the vocals are very pronounced and to me sound even more exiting than with DT48. Bass is there but it is quite subdued due to too soft cushions, so some possible upgrade in the future is this direction.
SHAMuuu
Headphoneus Supremus
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Still I definitely like them, they really have calm sound signature and not bass or scream too much
they build really good and I can leave them on the table while for other headphones I store inside case.
Flat aluminium diaphragm instead of light wight Mylar is a bad idea.
but as evener of cheap speakers like Sony Apm D5 (that using some flat aluminium diaphragm for the woofer), I definitely like this unusual idea
Still have to find some conclusion for the sweat/water absorbing on the top of the driver.
You can do a few things.
Cheapest: Buy Beyerdynamic foam discs or similar, cut a circle the same size as hole, and with four drops of super glue it should do the trick. Probably best to find a flexible type adhesive superglue, not the one that dries hard.
Alternative solution (more expensive). Those ear pieces are 2 piece, and the outer bit can come off, and other ear pads can be put on. I have tried many different pads from alcantara shures to leather hm5 to even alpha pads just for the fun of it.
StRandom
New Head-Fier
BEAG FDS 26-655
Like Tesla above, Hungarian BEAG was known for producing PA systems and studio equipment.
The 300Ohm SP in question was part of some PA setup and is has lesser build and sound quality than Tesla. The vinyl-looking pads are soft but feel tacky. But overall surely a nice part of the collection.
Opening a cup reveals neat internal design
The driver is a meager 32mm thing covered by a plastic cap with a tiny hole in the middle.
There are some nice mids but the rest is almost nowhere. There is a 600Ohm version out there which is supposed to have more flat response.
Like Tesla above, Hungarian BEAG was known for producing PA systems and studio equipment.
The 300Ohm SP in question was part of some PA setup and is has lesser build and sound quality than Tesla. The vinyl-looking pads are soft but feel tacky. But overall surely a nice part of the collection.
Opening a cup reveals neat internal design
The driver is a meager 32mm thing covered by a plastic cap with a tiny hole in the middle.
There are some nice mids but the rest is almost nowhere. There is a 600Ohm version out there which is supposed to have more flat response.
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StRandom
New Head-Fier
Amstrad HPS5A
If you want your '70s generic 8 Ohm no-bass, muddy, paper-cone goodness from Japan in one single package here is your perfect choice. The only real merit is how comfortable they are, so a candidate for future drivers swap.
Amstrad is better known as one of pioneers of home PCs in UK in the 80's but they produced no-thrills audio equipment as well.
If you want your '70s generic 8 Ohm no-bass, muddy, paper-cone goodness from Japan in one single package here is your perfect choice. The only real merit is how comfortable they are, so a candidate for future drivers swap.
Amstrad is better known as one of pioneers of home PCs in UK in the 80's but they produced no-thrills audio equipment as well.
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