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The Bluetooth Sound Enhancing Amplifier - This is the hybrid vacuum tube amplifier that pairs with any Bluetooth music device to provide superior audio performance. Vacuum tube amplifiers are known to generate warmer, more dynamic tones than transistor-based models because they limit distortion when overloaded, providing better signal-to-noise ratio. - Hammacher Schlemmer


Stellar dendrite Large snowflake, around 7 mm. 8 shots averaged to boost signal-to-noise ratio. Glass background with backlight, additional lens Helios 44M-5, january 2013, Moscow.


Satechi AirBass Bluetooth Speakers Cut the Wires and Bring the Bass - The speakers will work with tablets, smartphones, and MP3 players that support Bluetooth connectivity. The speakers use 3-inch drivers and have a signal to noise ratio of 80dB. The speakers also have a USB port that will power your gadget while you listen to music. | Geeky Gadgets