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AUNE S17 PRO EVO Headphone Amplifier / Preamplifier Silver
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Aune S17 Pro EVO Discrete Class A Balanced Headphone Amplifier / Preamplifier 7500mW 32Ω Silver
With its S17 Pro EVO, Aune unveils a powerful Class A headphone amplifier that can also be used as a preamplifier in a Hi-Fi installation. This headphone amplifier features discrete components and balanced outputs. Its final output stage uses two pairs of transistors in parallel, and the unit totals 16 output transistors. It also incorporates an R2R volume control and an attractive color display on the front panel. Inputs include single-ended RCA and balanced XLR. Powerful, the S17 Pro EVO can drive all types of headphones, from 32Ω to 600Ω impedance. The EVO version of the S17 Pro adds to all this independent volume management between its line and headphone outputs, as well as improved temperature management for more efficient cooling.
Aune S17 Pro EVO: Powerful amplification stage
The amplification stage of the Aune S17 Pro Evo is based on TWIN JFETs, ideal for headphone amplification. Each output channel incorporates two pairs of transistors, for a total of 16 output transistors. This Class A headphone amplifier also offers two levels of current adjustment: 50mA and 100mA per JFET. The Aune S17 Pro stands out for its warm, detailed sound reproduction, while delivering outstanding performance with a very low level of distortion.
Aune S17 Pro EVO: R2R volume control
A R2R JRC volume control chip is integrated into the Aune 17 Pro Evo to achieve a high level of precision and a wide soundstage.
Aune S17 Pro EVO: Two gain levels to handle all types of headphones
The S17 Pro Evo is capable of driving headphones with impedances ranging from 32Ω to 600Ω. Output power can reach up to 7.5W to drive the most demanding headphones.
Aune S17 Pro EVO: Efficient heat dissipation and clean power supply
A three-dimensional structure consisting of internal radiators, a massive plate and the chassis forms a complete and efficient cooling system, guaranteeing the stability of the Class A amplifier stage. A 50W toroidal transformer, combined with 19200µF array capacitors, feeds the digital and analog sections independently, minimizing potential interference on the analog section. These features enable the S17 Pro Evo to deliver high power output with rich, clear sound.
Aune S17 Pro EVO: Color display
A beautiful display on the front of the Aune S17 Pro Evo, showing current and temperature information as well as output type and volume level, enhances the device.
Aune S17 Pro EVO overview
| 1 | XLR 4-pin balanced headphone output |
| 2 | Jack 6.35mm single-ended headphone output |
| 3 | Jack 4.4mm balanced headphone output |
| 4 | IR receiver |
| 5 | Screen |
| 6 | Multifunction button |
| 7 | Single-ended RCA input |
| 8 | Balanced XLR input |
| 9 | Single-ended RCA line output |
| 10 | Balanced XLR line output |
| 11 | Power switch / Power supply input |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Headphone amplifier Preamplifier |
| Inputs | 1x Single-ended stereo RCA 1x Balanced stereo XLR |
| Sorties | 1x Single-ended jack 6.35mm headphone output 1x Balanced jack 4.4mm headphone output 1x Balanced XLR 4-pin headphone output 1x Single-ended RCA line output 1x Balanced XLR line output |
| Input/Output impedance | |
|---|---|
| RCA input impedance | 10kΩ |
| RCA output impedance | 200Ω |
| XLR input impedance | 10kΩ |
| XLR output impedance | 100Ω |
| Headphone output impedance | 1Ω |
| Single-ended Jack 6.35mm headphone output measurements | |
|---|---|
| Frequency response | 20Hz~80kHz (±0.05dB) |
| THD+N | < 0.0003% @ 1kHz |
| SNR | > 115dB @ 600Ω |
| Crosstalk | -105dB @ 1kHz, 600Ω |
| Balanced XLR headphone output measurements | |
|---|---|
| Frequency response | 20Hz~80kHz (±0.05dB) |
| THD+N | < 0.00016% @1kHz |
| SNR | > 116dB @ 600Ω |
| Crosstalk | < -110db @ 1khz, 600Ω |
| Output power vs. gain | |
|---|---|
| Jack 6.35mm headphone output (Low gain) | 738mW @ 32Ω 266mW @ 100Ω 177mW @ 150Ω 133mW @ 200Ω 106mW @ 250Ω 88mW @ 300Ω 56mW @ 470Ω 44mW @ 600Ω |
| Balanced headphone output (Low gain) | 2880mW @ 32Ω 1764mW @ 55Ω 765mW @ 90Ω 1000mW @ 100Ω 694mW @ 150Ω 520mW @ 200Ω 416mW @ 250Ω 347mW @ 300Ω 221mW @ 470Ω 173mW @ 600Ω |
| Jack 6.35mm headphone output (High gain) | 2050mW @ 32Ω 688mW @ 100Ω 464mW @ 150Ω 348mW @ 200Ω 282mW @ 250Ω 235mW @ 300Ω 150mW @ 470Ω 117mW @ 600Ω |
| Balanced headphone output (High gain) | 7500mW @ 32Ω 4654mW @ 55Ω 2970mW @ 90Ω 2673mW @ 100Ω 1837mW @ 150Ω 1378mW @ 200Ω 1102mW @ 250Ω 918mW @ 300Ω 586mW @ 470Ω 459mW @ 600Ω |
| General | |
|---|---|
| Dimensions | 288 x 211 x 63mm |
| Color | Silver |
| Package | 1x Aune S17 Pro EVO 1x Remote control 1x Power cable 1x Jack 6.35mm to Jack 3.5mm adapter |
| Input | XLR |
| Input | RCA |
| Output | XLR |
| Output | Jack 4.4mm |
| Output | RCA |
| Output | Jack 6.35mm |
| Color | Silver |
| Class | Class A / AB |
| Remote Control | Yes |
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