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Old

Who created the first headphone amp?

Posted 11-02-2009 at 04:07 AM by Currawong

An interesting thread from 2007 was bumped on this very subject.

Short answer seems to be: Stax in 1960 with the SRA-4S, as electrostats require a special amp:



but for dynamic phones, excluding pro gear with headphone outs, probably the Sure Solo-phone.



After that, Grado designed the HP-1 for the HP-1000s just before HeadRoom...
Currawong's Avatar
Headphoneus Supremus
Views 31 Comments 0 Currawong is offline
Old

I figured out how many headphone manufacturers get away with selling low-end, low quality headphones...

Posted 10-15-2009 at 07:36 AM by Currawong
Updated 10-15-2009 at 09:15 AM by Currawong

I wrote this up for a thread about Bose and thought it worth saving.

I figured out how many headphone manufacturers get away with selling low-end and lower-quality headphones, especially in the case of Bose and Monster, who do so at higher prices: Most cheap or rubbish headphones are seriously rolled off in the treble and 2-10k region that, if it weren't so, would reveal the shortcomings of the design, as that's where a lot of critical vocals are, and where women especially are most...
Currawong's Avatar
Headphoneus Supremus
Posted in Sound Science
Views 208 Comments 0 Currawong is offline
Old

DAC vs. SoundCard... what's the difference/what's better?

Posted 10-08-2009 at 10:30 AM by Currawong

I thought the discussion in this thread was worthy of posting, and I know I'll want to recall what I wrote later, so I've included here my and other peoples' answers. My answers aren't quoted.

[A]nything that converts a digital signal to analogue is a DAC. People often refer to a sound card that plugs in via USB instead of inside your computer as an "external sound card". These have connections for mice and instruments and are used for amateur music making. Many companies...
Currawong's Avatar
Headphoneus Supremus
Views 286 Comments 0 Currawong is offline
Old

The eXStata DIY electrostat amp first review.

Posted 10-07-2009 at 10:25 AM by Currawong

It seems that the eXStata DIY electrostat amp is already exceeding expectations, using only $350 or so of parts, including the case. HeadphoneAddict has provided us with a short review mid-thread thus:

Quote:
Originally Posted by HeadphoneAddict View Post
The eXStata is a great amp, but it was so highly detailed that we could hear jitter (grainy griity in the highs) with the Apple TV on Saturday, which at first was more difficult to pick up with the GES until 3 hours into the meet, making us have to change the transport to a Macbook
...
Currawong's Avatar
Headphoneus Supremus
Views 151 Comments 0 Currawong is offline
Old

Weird-fi.

Posted 10-01-2009 at 12:14 PM by Currawong

Is it just me, or are weird threads popping up all over the place?

Horrifying monster wearing Grados

People I don't know being overly nice to me. It's creeping me out.

What's up with those antennas on Grado headphones?

Why did everyone on here make it sound like I NEEDED a threaded cable for my Q40's?
Currawong's Avatar
Headphoneus Supremus
Posted in Miscellaneous
Views 89 Comments 0 Currawong is offline
Old

Grado HF2 “i” DIY Mods

Posted 09-27-2009 at 02:00 PM by Currawong

cafe zeenuts has been experimenting with the best combination of Grado Jumbo pads ("bagels") with his HF-2s to bring out the soundstage, and materials to cover the driver with to reduce the resulting sibilance. I'm definitely going to try this myself and try a few local materials as well to see how things go.

Currawong's Avatar
Headphoneus Supremus
Views 182 Comments 1 Currawong is offline
Old

Pico Slim Prototype pictures.

Posted 09-26-2009 at 12:36 PM by Currawong

Justin@Headamp recently demoed a Pico Slim Prototype at a mini-meet, which can be seen here next to an iPod touch and with Boomana's JH-13 customs. Justin has stated that he has managed to find a marginally thicker battery for it with 34% more capacity, giving it 60 hours of music playing time between charges. Pricing has yet to be announced, but there will definitely not be a version including a DAC, and as it charges from a USB port, a power adaptor will likely not be included.

...
Currawong's Avatar
Headphoneus Supremus
Views 233 Comments 0 Currawong is offline
Old

Why do I need an amp (for full-sized headphones)?

Posted 09-20-2009 at 01:40 AM by Currawong
Tags amps

Uncle Erik wrote a fantastic explanation about this, too good not to post. To explain some of the reply: In the thread that was posted, BlaineShelby had plugged his Denons into an amp his friend was building, which was probably a cmoy, whereupon he heard crackling, so since that was not an improvement, he wanted to understand better why people suggest he gets an amp.

Quote:
Originally Posted by Uncle Erik View Post
J.S. Bach, Toccata and Fugue in D Minor. You have heard this before, by the way. It's a famous piece used in lots of
...
Currawong's Avatar
Headphoneus Supremus
Views 825 Comments 0 Currawong is offline
Old

Amarra DOES work through the optical digital output of a Mac.

Posted 09-12-2009 at 07:01 AM by Currawong
Updated 09-12-2009 at 07:04 AM by Currawong

I don't recall exactly where, but some or other person incorrectly stated that Amarra doesn't work from the optical digital output of a Mac. However, this contradicted my own experiences when testing it. A friend of mine, the proud owner of a Berkeley Alpha DAC, interested in borrowing an Amarra dongle from his local hi-fi store, with which he is well acquainted, called up Amarra directly to confirm matters. The result, direct from the horses mouth is, yes, it works through the optical digital...
Currawong's Avatar
Headphoneus Supremus
Views 157 Comments 0 Currawong is offline
Old

Ok, here we go again: Beyer T1 impressions and pictures list.

Posted 09-05-2009 at 02:09 AM by Currawong
Updated 09-06-2009 at 12:58 AM by Currawong
Tags beyer, tesla

As usual, I'm providing two links, one to the post in the thread, and one to the individual post page. This thread will be updated as I come across others. Please PM me if I miss any.

m00hk00h was first, with a trip to the IFA. 1st: Thread | Post
2nd listen and DT880 comparison: Thread | Post
m00hk00h's pictures: Thread | Post

My thoughts: He said that angled drivers in headphones for him produce a smaller soundstage, before anyone gets the idea that his...
Currawong's Avatar
Headphoneus Supremus
Views 560 Comments 0 Currawong is offline

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