Aune S17 Pro - Class A Headphone Amplifier

Aune S17 Pro is a powerful headphone amplifier that can also be used as a preamplifier in a hi-fi system. With discrete components and balanced outputs, the S17 Pro offers exceptional sound quality and versatility.

• Class A headphone amplifier
  
• 3 connections for headphones
  
• Discrete components
  
• Completely symmetrical construction
  
• R2R volume control
  
• 50 Watt linear toroidal transformer
  
• Aluminum remote control

Powerful Class A amplification
The S17 Pro's Class A power stage features a pair of JFET transistors with two levels of current adjustment: 50mA and 100mA per JFET for the headphone outputs, plus two AOPs per output for a total of 16 AOPs. This results in a warm and detailed sound with a very low level of distortion.

Tube-like Sound Quality
Dual JFETs provide a tube-like sound. JFET has high input impedance and full and smooth sound reminiscent of a tube amplifier. The S17 Pro uses dual JFETs, whose temperature rises and performance are identical and the midpoint voltage is stable.

Flexible Reinforcement
With two gain levels, the S17 Pro can drive any type of headphone from 32 to 600 ohm impedance. The low gain utilizes the linear range of the Class A amplifier to drive IEMs optimally, while the high gain provides up to 7.5W of output power for demanding headphones.

Advanced Cooling
To handle the heat from the class A amplifier, Aune has developed a complex three-dimensional structure where the heatsink on the transistor, the heat plate at the bottom and the chassis form a complete cooling system.

User-friendly Control
A multifunction knob on the front controls power, gain and volume. The included aluminum remote control makes handling even easier.

Extensive Connectivity The S17 Pro offers:

• 3 headphone outputs (6.35mm, 4.4mm balanced, XLR 4-pin balanced)
  
• 2 groups of preamplifier outputs ( RCA and XLR)
  
• 2 line inputs ( RCA and XLR)

Robust Power Supply
A 50W toroidal transformer with a low noise floor and 19200μF large capacitor bank provides plenty of power reserve.

Recommended Combination
Combine the S17 Pro with Aune S10N Music Streamer with built-in Saber 9038Q2M DAC for optimal performance.

Specifications:

Output:

• G-L Low Gain Single-Ended Output:
  32Ω = 738mW
  100Ω = 250mW
  150Ω = 166mW
  250Ω = 100mW
  300Ω = 83mW
  470Ω = 53mW
  600Ω = 41mW
• G-L low gain balanced output:
  32Ω = 2773mW
  100Ω = 968mW
  150Ω = 645mW
  250Ω = 388mW
  300Ω = 333mW
  470Ω = 212mW
  600Ω = 166mW
• G-H High Gain Single-Ended Output:
  32Ω = 2020mW
  100Ω = 675mW
  150Ω = 453mW
  250Ω = 273mW
  300Ω = 228mW
  470Ω = 145mW
  600Ω = 114mW
• G-H high gain balanced output:
  32Ω = 7507mW
  100Ω = 2643mW
  150Ω = 1793mW
  250Ω = 1089mW
  300Ω = 908mW
  470Ω = 580mW
  600Ω = 453mW

Input/Output Impedance:

• RCA input: 10KΩ
• RCA pre-stage output: 200Ω
• XLR input: 22KΩ
• XLR preamp output: 100Ω
• XLR/6.35/4.4 headphone output: 1Ω

6.35mm Single-Ended Headphone Output:

• Frequency range (20Hz~80KHz) ± 0.05dB
• THD+N > 0.00038% @ 1KHz
• SNR > 115dB @ 600Ω
• Crosstalk <-105dB @ 1KHz 600Ω

Balanced XLR Headphone Output:

• Frequency range (20Hz~80KHz) ± 0.05dB
• THD+N > 0.00016% @ 1KHz
• SNR > 116dB @ 600Ω
• Crosstalk <-110dB @ 1KHz 600Ω

Physical Specifications:

• Mått: 211 x 288 x 63 mm

Included Accessories:

• 1x Power cable
• 1x Remote control (CR1220 battery not included)