Ray Samuels Audio Sr-71 Portable Headphone Amplifier

Emmeline SR-71 Headphone Amp - Ray Samuels Audio

http://www.raysamuelsaudio.com/products/sr-71.html

The SR-71 has a big, huge, sound stage, very focused, and three dimensional. You will never believe the sound that is produced from an amp of 3.5” x 2.5” x 1.5”. All controls are on the front faceplates. Both input and output connectors are 1/8 of …

Ray Samuels Audio Emmeline SR-71 portable headphone ...

https://www.stereophile.com/headphones/905ray/index.html

Emmeline, SR-71B: A Fully Balanced Portable Amp - Ray ...

http://www.raysamuelsaudio.com/products/sr-71b.html

Emmeline, SR-71B: A Fully Balanced Portable Amp SR-71B Fully balanced, input-output, portable amp. SR-71B is the very first headphone amp of its kind. It implements Quad mono design topology using state of the art parts available in the market today. This makes SR-71B as compatible to the best of home base amps if not better.

Ray Samuels Audio SR-71B Fully-Balanced Portable …

https://www.theabsolutesound.com/articles/ray-samuels-audio-sr-71b-fully-balanced-portable-headphone-amp-playback-60

News - Ray Samuels Audio

http://www.raysamuelsaudio.com/

There is no headphone ever made that SR-71B can’t drive with great authority & control. It will stand toe to toe with best balanced home amps out there. It can swing in balanced mode more than 26V p-p. SR-71B uses, custom designed for RSA, four Lithium Ion battery pack that when fully charged you have 16.8 volts DC.

Ray Samuels Audio Emmeline SR-71 portable headphone ...

https://www.stereophile.com/content/ray-samuels-audio-emmeline-sr-71-portable-headphone-amplifier-measurements

REVIEW: Ray Samuels Audio SR-71B balanced portable ...

https://www.head-fi.org/threads/review-ray-samuels-audio-sr-71b-balanced-portable-headphone-amp.529311/

The SR-71B uses a phase splitter to take the single ended input and run it through the amp balanced. Either of its inputs uses the entire amp, and can feed the balanced output. But a balanced source is very likely to be stronger than a SE one.

REVIEW: Ray Samuels Audio SR-71B balanced portable ...

https://www.head-fi.org/threads/review-ray-samuels-audio-sr-71b-balanced-portable-headphone-amp.529311/page-14

RSA F-35 Lightning Review HISTORY: My first portable headphone amplifier was the Ray Samuels Tomahawk in 2007. I needed it because my Shure E4c were not very efficient and needed more power to wake them up or energize them, and my Sennheiser HD600 were much more demanding and needed significantly more power than my iPod could supply - without the …

REVIEW: Ray Samuels Audio SR-71B balanced portable ...

https://www.head-fi.org/threads/review-ray-samuels-audio-sr-71b-balanced-portable-headphone-amp.529311/page-12

I recall Ray saying something about the SR-71b is a quad mono amp, and Intruder uses fewer chips and is a dual stereo amp. For what I use the amp for, Ray thought staying with the SR-71b was a better choice. I mostly use it as a desktop amp with full size balanced headphones, with a desktop DAC.

REVIEW: Ray Samuels Audio SR-71B balanced portable ...

https://www.head-fi.org/threads/review-ray-samuels-audio-sr-71b-balanced-portable-headphone-amp.529311/page-8

The SR-71b is only a little bigger than the Protector, and would fit perfectly under an iPod Touch, iPhone or Classic. The Protector is a little wider and thicker than my 5G Nano, but not as wide as the Touch or iPhone, etc. The SR-71b battery should last about 16 hours, and the Protector is supposed to offer 3x that much battery life.