Aune S17 Pro Headphone Amplifier

Twin JFET · Class-A · Current Adjustable · R2R Volume

As aune’s new generation of fully-discrete class-A headphone amp, the S17 Pro has the features of twin JFET, R2R volume control, 2 levels of current to select from (50mA/100mA class-A quiescent current per transistor), output power as high as 7.5W, 3 groups of headphone outputs + 2 groups of preamp outputs, etc. It is a high-performance rich-sounding headphone amplifier with high power.

Two Transistors per Channel Powerful

The S17 Pro final output stage uses two pairs of output transistors in parallel. The whole device has as many as 16 output transistors. Max output is 7.5W. It can drive all kinds of headphones and IEMs with ease.

R2R Electronic Volume Chip Precise, and More

The S17 Pro uses the R2R electronic volume chip from JRC and the dedicated op-amps to build the 4-way balanced R2R volume control. High control precision, great channel balance, wide soundstage, accurate positioning.

Two Colors to Present Current Level and Temperature Clear at a Glance

The brand new UI of the S17 Pro uses two colors to present the current level and the temperature, making the display clear at a glance.

(An actual measurement example: room temperature 25℃, high current mode, 24 hours continuous work, internal heat sink 66℃, chassis 50℃, knob 43℃.) (In 100mA mode, there will be a slow temperature rise, which is a normal phenomenon. The overheat protection will auto switch the current to 50mA when the temperature reaches 69℃.)

Two Gain Levels Drive Your Headphones and IEMs Well and Properly

The S17 Pro has two gain levels, and has set different output amplitudes. The low gain takes advantage of the class-A amp’s feature that the transistors are always working in the linear area, to drive the IEMs well and properly, while the high gain is as high as 7.5W and thus can drive headphones well with big power.

Complex Cooler Structure Stable Class-A

The class-A amp’s transistors are always working in the linear area, which causes a lot of heat. aune’s industrial designer built a complex three-dimensional structure, making the heat sink on the transistor + heat plate at the bottom + chassis form a whole cooler system. And the heat goes out through the rear plate heat emission holes. The class-A stability is thus guaranteed.

50W Low-Ripple Toroidal Transformer + 19200μF Capacitor Array

The S17 Pro uses the 50W low-ripple toroidal transformer and dual-power design. Digital control and analog are independent from each other, so the analog part can be free from interference. What’s more, it has the 19200μF capacitor array. They together make the S17 Pro so powerful and rich-sounding.

Multi-Function Knob & All-Aluminum Remote

The front plate is clean and simplistic, and with the one multi-function knob you can adjust current, gain and volume. Let the listening be pure and easy.

The well-designed all-aluminum remote makes the control even more enjoyable.

Multi-Connectivity

The S17 Pro has 3 headphone outputs, 2 groups of preamp outputs and 2 line inputs, satisfying your needs in different scenarios.

The Beauty of Arc And Simplicity

The symbolic arc-shape design. Classic, simplistic, aesthetic. Enjoy music with the enjoyable design.

Rigorous HiFi Component Selection

The components used for the S17 Pro are high-quality ones that are carefully selected, such as the high-quality HiFi electrolytic capacitors, the ceramic capacitors, the organic thin-film capacitors, the communication-grade PCB, etc. Everything is aimed at good sound.

High-Spec

Headphone amp output (high gain): 4μV; THD+N: 0.00016%. The excellent hardware performance has laid the solid foundation for excellent sound.

Recommended Combo

Aune S17 Pro and Aune S10N