![bottlehead crack w/speedball bottlehead crack w/speedball](https://cdn.head-fi.org/a/10366477.jpg)
#Bottlehead crack w/speedball full
I will guarantee the performance of this amp and will accept returns for a full refund of the purchase price. Challenge for Objectivists: Bottlehead crack emulation (w/ Sennheiser HD6XX) Psychoacoustics: Science of How We Hear: 76: Jun 29, 2021: J (SOLD) Bottlehead Crack 1.1 Headphone Tube Amplifier with Speedball Upgrade: Audio Equipment For Sale or To Buy: 1: Feb 17, 2021: Bottlehead Crackatwoa OTL tube headphone amplifier build: DIY Audio Forum: 78. I will also include the instruction manual.
![bottlehead crack w/speedball bottlehead crack w/speedball](https://cdn.head-fi.org/a/9973944.jpg)
Not shown, but also included, is a new power cord. The wooden chassis comes complete with the Bottlehead badge. The Speedball is a Camille Cascode Constant Current Source that deepens the bass, lowers the noise floor and overall intensifies the already awesome Crack performance. To the basic Bottlehead Crack 1.1 I added the Speedball 1.1 Upgrade. The Crack 1.1 uses 12AU triode tubes for input and output, and the stock tubes are included. High quality Kester 63/37 rosin core solder was used throughout. and M.S.) in electrical engineering and physics and in the early part of my career I spent some years doing mainly electrical work (electrical design, assembly, testing, and software design) in the research and development department of an instrumentation company in Sweden.I know electronics and can easily tell the difference between a good solder joint and a cold one. I just completed construction of this Crack 1.1 and it sounds super! While I wouldn't call myself a professional headphone amplifier builder, I have degrees (B.S. It also works very well with many Beyerdynamic and AKG headphones. A favorite of Sennheiser headphone aficionados, the Crack pairs extremely well with Sennheiser HD 600, HD 650, and HD 800 (or HD 800 S) headphones.
![bottlehead crack w/speedball bottlehead crack w/speedball](https://cdn.head-fi.org/a/10113883.jpg)
The Crack is an output transformerless tube headphone amplifier designed for use with higher impedance (>200 ohms) headphones. I am offering for sale a newly completed Bottlehead Crack 1.1 OTL Headphone Amplifier with the Speedball 1.1 Upgrade.