joneeboi
Headphoneus Supremus
- Joined
- Jul 7, 2006
- Posts
- 1,919
- Likes
- 20
Good to be back.
So I've been modding my Grado SR60s. I want a beyer DT770/880 headband for them to replace that annoying vinyl strap. I tried to get them from beyerdynamic USA, butthey wouldn't deal with me. They then directed me to Martech Marketing in Edmonton. I tried them several times and they essentially could not get me the headband so far. I talked to beyer USA about it and they agreed to deal with me if I was willing to pay the shipping.
Considering they deal with Fedex and UPS, I'm not sure that'd be a good idea. Since Martech is in town, I will try just driving over there and seeing what's up. Details to follow.
I finished my CMoy RA-1 Clone. I lost the JRC4556 opamps I got from Mouser, but I modified the circuit enough that I didn't really care that the opamp was the OPA2107. It didn't have the bass slam I remembered from before. I had a misconception about the PINT LM317-based trickle charging circuit that resulted in exploded batteries. I haven't bothered to get new batteries yet, so I haven't used it yet. I suppose I will use it until I can get my hands on parts for a Mini3.
Following is a story about the blessings from heaven in the form of a free iPod 4G. A friend was about to toss it in the garbage since the hard drive was acting up. I opened her up, stuck in a flap of paper, and replaced the battery with a 1200mAh unit from eBay. Motivated by this ipastudio thread, I thought I had very little to lose in emulating that mod as my Creative Zen Vision:M was pulling full-duty portable music provider. I don't have any photos right now, but studying the datasheet for the iPod 4G's WM8975 (which according to iPodlinux.org/Generations is similar to the WM8971) and studying the logic board, I was able to get the audio feed straight from the DAC. I drilled a hole through the backplate, wired two 220uF Nichicon UPWs in series with a stereo jack cased in a Tic-Tac and electric-taped to the backplate, and now it's feeding my Millett MAX with newly installed Toshiba 2SC3422/2SA1359 BJTs. Quite an impressive combo. The breadth of my headphone experience isn't vast by any means on this forum, but this configuration is the best music I've ever heard. Not bad for about five-six hours of work. The way I have it now, I can swap out caps for purposes of achieving the best sound. Black Gates are hypothetically on the way. A 1uF film cap was recommended on the datasheet. I've summed up this glorious source in this sentence:
The diyMod: a free player with a $12 battery, $4 DAC, $0.21 caps, and a $0.87 phone jack.
Praise the LORD. I love the diyMod He's given me.
So I've been modding my Grado SR60s. I want a beyer DT770/880 headband for them to replace that annoying vinyl strap. I tried to get them from beyerdynamic USA, butthey wouldn't deal with me. They then directed me to Martech Marketing in Edmonton. I tried them several times and they essentially could not get me the headband so far. I talked to beyer USA about it and they agreed to deal with me if I was willing to pay the shipping.
Considering they deal with Fedex and UPS, I'm not sure that'd be a good idea. Since Martech is in town, I will try just driving over there and seeing what's up. Details to follow.
I finished my CMoy RA-1 Clone. I lost the JRC4556 opamps I got from Mouser, but I modified the circuit enough that I didn't really care that the opamp was the OPA2107. It didn't have the bass slam I remembered from before. I had a misconception about the PINT LM317-based trickle charging circuit that resulted in exploded batteries. I haven't bothered to get new batteries yet, so I haven't used it yet. I suppose I will use it until I can get my hands on parts for a Mini3.
Following is a story about the blessings from heaven in the form of a free iPod 4G. A friend was about to toss it in the garbage since the hard drive was acting up. I opened her up, stuck in a flap of paper, and replaced the battery with a 1200mAh unit from eBay. Motivated by this ipastudio thread, I thought I had very little to lose in emulating that mod as my Creative Zen Vision:M was pulling full-duty portable music provider. I don't have any photos right now, but studying the datasheet for the iPod 4G's WM8975 (which according to iPodlinux.org/Generations is similar to the WM8971) and studying the logic board, I was able to get the audio feed straight from the DAC. I drilled a hole through the backplate, wired two 220uF Nichicon UPWs in series with a stereo jack cased in a Tic-Tac and electric-taped to the backplate, and now it's feeding my Millett MAX with newly installed Toshiba 2SC3422/2SA1359 BJTs. Quite an impressive combo. The breadth of my headphone experience isn't vast by any means on this forum, but this configuration is the best music I've ever heard. Not bad for about five-six hours of work. The way I have it now, I can swap out caps for purposes of achieving the best sound. Black Gates are hypothetically on the way. A 1uF film cap was recommended on the datasheet. I've summed up this glorious source in this sentence:
The diyMod: a free player with a $12 battery, $4 DAC, $0.21 caps, and a $0.87 phone jack.
Praise the LORD. I love the diyMod He's given me.
