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Cypher Labs Theorem 720 DAC Headphone Amplifier Reviews

illy2k

Could be great but...

Posted

Pros: Integration with Apple Devices, SQ, well built, long battery life

Cons: Heavy, a bit large for a true "mobile" device, high noise floor, doesn't isolate RF from cell phone

So this will be a short and sweet review of the Theorem 720 of which I had for about 30 days and then had to return to Cypher Labs. My primary use for this device was to have something for listening to ALAC from my iPhone when I was at work or on the go. I was primarily feeding the output to my JH-16 pros with a balanced cable.   Pros: In short the integration with any apple device plus the ability to charge your iphone while playing music is awesome. If using the Theorem from your laptop the battery life is incredible. The Theorem provides and extremely analytical listening experience, with the crispness you expect from solid state. The soundstage it provides is extremely wide and...
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cripple1

CL Theorem 720 - A Portable Powerhouse

Posted

Pros: Power, detail, clarity, gain stages, multiple inputs

Cons: Size, weight

The Theorem 720 is magical.. Using it is like stepping into a foreign land where everything is crisp, detailed, and so very vivid that you’ll never want to leave again for the boring, veiled, blurred and blobby images of your old homeland. I tested my Theorem with many different genres of music, from Rock to Rap (Eric Clapton, Eminem, Pink Floyd), Pop (Michael Jackson), and jazz to R&B (Sade, Michael McDonald, Brian McKnight, Seal, Usher) using my iPod Classic 6th gen (120GB) and the provided CL LOD paired with my modded T50rp and Shure SE215Ltd w/balanced cable, JH16 Pro, and Grado SR80i, and it didn’t ever disappoint. I’d go so far as to say that it rivals even some desktop setups;...
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