I found one on ebay in black (probably not as good looking as those audio note ones!) that was only about 8 bucks. Shipping worries me, estimate is currently...July. I'll just have a non-fitting knob till then .
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Crack;Bottlehead OTL
- Thread starter ironbut
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Paladin79
Previously MOT: Cables For Less
Toad_of_Toad_Hall
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Paladin79
Previously MOT: Cables For Less
No noise that I can measure or hear. They go on the output stage, use a 12 v supply that I ran separately. Dual volume pots that are simple enough to install. I did another version that is outboard, uses a pre-amp out, tulip poplar with ebony inlays and splines.The VU meters look great! Do they add any noise to the circuit? How do you hook them up?
Paladin79
Previously MOT: Cables For Less
Toad_of_Toad_Hall
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Those amps are for friends. My next venture will be a honey locust cabinet with copper and maybe holly splines.
Clearly I need better friends .
Paladin79
Previously MOT: Cables For Less
Amazon or Ebay, they are not expensive but they can take a while to receive. I just noticed this seller and the price is very good.Source for the meters?
https://usa.banggood.com/2-Pcs-VU-M...LMmHZ2G1UsvcJphoCZ1AQAvD_BwE&cur_warehouse=CN
It took me a while to find a hole cutter the perfect size but I have used these meters a lot and will continue to do so. I compare different headphone amps a lot and the meters are quick reference for me on signal level.
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wwmhf
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My build might give a few of you ideas on cabinet choices. This is walnut with maple splines and solid brushed copper.
A classy amp ...
Paladin79
Previously MOT: Cables For Less
MRHiFiReviews
Formerly MRphotography
Sponsor: The Source AV
Hey Friends!! Check it out...a quick video I did with a fun montage unboxing of the Bottlehead Crack OTL 1.1 Headphone Amplifier! I hope you dig it, I will post up more audio gear videos to the channel soon. Please consider subscribing to the channel and drop me a like on the YouTube video if you don't mind and let me know if you want to see part 2 and 3 of this video series in the comments! Have a safe and great start to your week.
MR
MR
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wwmhf
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It should be continued ... until music comes out it ...
Hey Friends!! Check it out...a quick video I did with a fun montage unboxing of the Bottlehead Crack OTL 1.1 Headphone Amplifier! I hope you dig it, I will post up more audio gear videos to the channel soon. Please consider subscribing to the channel and drop me a like on the YouTube video if you don't mind and let me know if you want to see part 2 and 3 of this video series in the comments! Have a safe and great start to your week.
MR
Hey man! Nice to see you over hear!
chrisdrop
1000+ Head-Fier
I am quite well equipped in the headphone amp department, but, I also want to learn to build 'em. So, I'll build a Crack+Speedball to start that journey.
In terms of parts/ performance upgrades, I think we have:
I assume it is best to build it to manual spec first (no changed parts), then make changes? Is that the case? Anything worth just doing during the initial build?
In terms of parts/ performance upgrades, I think we have:
- Potentiometer - a good stepped attenuator can cost as much as the Crack, but an Alps pot seems a good balanced upgrade?
- Resistors - Looking for thoughts here. Looks like sometimes a choke is used in place of one resistor post power-supply to reduce power noise too. Hammond? Wire-wound replacements - Mills?
- Caps - You can spend quite a bit here. Some can also be huge. Looking for thoughts here.
- Anything else?
I assume it is best to build it to manual spec first (no changed parts), then make changes? Is that the case? Anything worth just doing during the initial build?
MRHiFiReviews
Formerly MRphotography
Sponsor: The Source AV
Hey man! Nice to see you over hear!
Thanks Wes!
TSAVJason
Stay updated on The Source AV at their sponsor profile on Head-Fi.
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