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The β22 stereo amplifier - AMB Laboratories
https://www.amb.org/audio/beta22/
β22 ("beta 22") is a high-end, reference-quality DIY stereo amplifier for dynamic headphones. It could also be built as a power amplifier for speakers (18Wrms into 8Ω unbalanced, or 50Wrms into 8Ω fully-balanced), or as a preamplifier.
Rockhopper Audio: New Website - www.Head-Case.org
https://www.head-case.org/forums/topic/7646-rockhopper-audio-new-website/
It's been a bit quiet at Rockhopper Audio. I've been working hard to finally clear out the build que and get to pre-builds only. Well that time is here. Rockhopper Audio. I've got a new site and two great balanced amps for sale right now. A balanced M3 and a balanced Beta 22. There are 10 single-ended Beta 22 amps on the way starting in January ...
Can Beta 22 drive speakers? | Headphone Reviews and ...
https://www.head-fi.org/threads/can-beta-22-drive-speakers.669456/
Yeah, the B22 would have to have been built to be able to drive speakers. This would require one Sigma22 power supply for each board. If you have 4 amp boards and 4 Sigma 22 boards, then you would be able to have speaker taps at the back for driving efficient speakers.
Portaphile V2^2 and Rockhopper M3 Impressions - Head-Fi
https://www.head-fi.org/threads/portaphile-v2-2-and-rockhopper-m3-impressions.136770/
The budget M3 amplifier from Rockhopper audio is much like the Portaphile in that it is no nonsense. Both amps even use similar off the shelf cases, though the M3 is substantially bigger. ... Balanced Beta 22, M^3, PINT, PPAS, Hornet, CROSS-1 Headroom Ultra Desktop DAC. Share Sep 26, 2005 at 10:22 PM Post #6 of 31 hciman77 Headphoneus Supremus ...
Beta 22.0Hz + 396Hz Solfeggio Carrier Frequency ...
https://www.youtube.com/watch?v=DDM41PkR8yQ
Wow picks! Priced at $9.95 Choose your wows. 🐕 How To Use The Brainwave Entrainment Audio’s:You can purchase and download a high quality MP3 brainwave entra...
Rockhopper | Specialized.com
https://www.specialized.com/us/en/rockhopper
Decked out in performance-focused components at every level, the new Rockhopper fits right in at any occasion. Air-sprung RockShox forks, tubeless-ready rims and tires, and 1x drivetrains on the Expert and Elite will certainly turn heads, while powerful disc brakes and a whole host of dependable Shimano bits across the entire line will always be in fashion.
Should I build a beta-22 amp? : diyaudio - reddit
https://www.reddit.com/r/diyaudio/comments/1wuc8y/should_i_build_a_beta22_amp/
The beta22 is a pretty hefty project. I'd say my biggest fear is not so much soldering but ordering the correct parts. Check GlassJarAudio for a kit of all the parts you'll need.
Rockhopper Audio is back!!! - Headphone Amplification ...
https://www.head-case.org/forums/topic/1752-rockhopper-audio-is-back/
Rockhopper Audio is back!!! Reply to this topic Start new topic PFKMan23 High Rollers 1.9k Posted August 22, 2007 http://www.head …
Comfortable headphones for long gaming sessions? - reddit
https://www.reddit.com/r/headphones/comments/zeg8g/comfortable_headphones_for_long_gaming_sessions/
HRT MS Pro > Rockhopper Beta 22 > HE-500 & HD650. I can wear my HD600s and HD650s for hours on end. I wear my 600s at work 5+ hours a day on average. ... Audio Technica AD900s. you will get an awesome sound stage and feel like you're wearing clouds over your ears! they are amazing for gaming. 2. Share. Report Save. level 1 · 9y.
Rockhopper – Marine Passive Acoustic Recording Unit – …
https://www.birds.cornell.edu/ccb/rockhopper-unit/
The Rockhopper can sample at 394 kHz (4X higher than the MARUs), allowing the units to record sounds of most marine species. The second desired improvement was audio quality. Rockhopper was made to achieve a very low noise floor, particularly at frequencies below 10 kHz.
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