Recently I posted a review of the construction stage of my Bottlehead Crack amplifier. The amp’s been in action for a few weeks now and I’m ready to share a review of my impressions.

Bottlehead Crack - $500.00. Bottlehead Crack Headphone Amplifier With Speedball Upgrade. Speedball Letterpress - $450.00. New Japanese Speedball 2 Sega Mega Drive Japanit. Used Smart - $197.95. Used Smart Parts Ion Xe Paintball Marker Shocktech Silver Electronic Speedball. Used Tippmann - $197.95. You can learn more about the Speedball upgrade for this kit at this link. A Bottlehead Badge is not included with your kit but you can add one, at our cost at for. 1 > Regular Price: $315.00USD • When you buy 2-9 > Sale Price: $283.50USD.

I’m not going to start with the normal list of specifications for the Crack because it’s so variable due to the massive range of modifications you can make to it. What does matter are the following details: • Tube driven amplifier for headphones • Designed for high impedance headphones (ideal with Sennheiser and Beyerdynamic cans) • Buckets of power Overview The Bottlehead Crack is a DIY kit sold by Bottlehead in America.

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It costs around $350 fully shipped to Australia and takes a couple of days to put together if you take your time, but could be completed in a day of assembly, committed soldering and testing. If you want to know how easy it is to build one of these for yourself, you can check out the build post here: For $350, this amp is simply incredible. To put it into perspective, the Crack performs on par or better than products like the Woo Audio WA3 (~$580) and Schiit Lyr (~$550). Because of its DIY nature, you can get brilliant performance for a very low price. On top of that, building it yourself means you know what’s going on inside and can easily add to it and improve it either on your own or using the add-n “Speedball” kit from Bottlehead. To read the full review please head over to the. It’s sexier and there’s lots of great new content.

Thanks for reading! I didn’t get the Speedball.

There is a really slight background hum that’s really only audible when you’re listening for it and I think adding the Speedball might rectify this – I plan to get it in the future, but was interested in getting the stock kit and getting to know it before upgrading. The 240V transformer is a different version of the normal unit they put into the kit – i.e. It’s built into the kit (and looks exactly the same as the 110V one from what I can tell) – it’s the dark grey cube at the back of the amp with the curved metal top. Thanks for the compliment on the wood finish.

I used Black Japan stain and put it on lightly and irregularly. I also sanded it a little irregularly in between staining and varnishing (and in between coats of varnish). I used a satin varnish. Good idea on a group buy. Fantastic write up Lachlan. The only reason i ended up here was that bottleneck have a offer on this weekend buy it & get the speed ball free and if you ask me that is a real bargain.& now just needed some more feedback on it and your writeup made my mind up so thanks to you and there offer i have got one but the wife is going to be a little pissed with me mind you. I was looking at the crack a while back last year & after spending weeks researching valve amps i was going to buy it but due to work never go t round to it until i received an email from bottlehead regarding there offer and guess what i could not say no who wouldn’t.there going to power my 650’s with high end rme converter 32 bit 192 khz.kind regards sy.