Eleven Audio broadway S Ultra Low noise headphone amp

The world's first lithium ion battery powered discrete class A headphone IEM amplifier


High performance headphone amplifier by XIAUDIO (TM) combines smooth detailed sound with very low noise tuned for low impedance or high sensitivity headphones such as Sony, Denon, Grado, Focal, and many others. Amazing low level detail, no hiss or hum, smooth very real mids and vocals, and clear highs just begin to describe how good this amp is!.


Broadway S sounds way larger than it looks. High performance with 800 mW of super smooth class A bias amplification. DC coupled means huge low frequency bass resolution. Broadway S plays music in a very organic lifelike manner, never bright, never boring, the house sound of all Eleven Audio products. If you feel your headphones could do better, this is it!


  • Frequency response: DC-100 KHz
  • S/N ratio: 130 dB
  • Power: 800 mW @ 16 ohms fully balanced class A operation (amplifier biased full on at all times, no edgy crossover distortion typical of many solid state amplifiers)
  • Run time: Approx. 11 hours on full battery, indefinitely while connected to AC charger
  • Inputs: High quality gold plated stereo RCA pair
  • High quality volume adjust potentiometer
  • Headphone Outputs: High quality 4 pin XLR and 6.35mm (1/4") jacks
  • All aluminum construction with durable beaded finish and permanent laser markings
  • Batteries: Replaceable- 18650 x 4 (Built-in battery management, auto-off on low battery, auto charge when connected to AC charger)
  • AC Charge adaptor: Universal low noise external desktop supply 90-240 VAC, 50-60 Hz, standard IEC320 C14 inlet- Global safety certs UL, TUV, PSE, RCM, KC, SIRIM, BIS, EAC, BSMI, CCC
  • Dimension: 21 L x 15.6 L (19 cm including volume control) x *4.8 H (cm)
  • Weight: Approx. 1000 grams (2.2 lbs) with battery
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