1. Introdución
The Aune S17 Pro EVO is a high-performance headphone amplifier e pre-amplifier designed for discerning audio enthusiasts. Featuring a pure Class-A, fully-discrete, and fully-balanced circuit design, it delivers exceptional sound quality and powerful output for a wide range of headphones and In-Ear Monitors (IEMs). This manual provides essential information for setting up, operating, and maintaining your S17 Pro EVO to ensure optimal performance and longevity.
Figure 1: Aune S17 Pro EVO Headphone Amplifier (negro)
2. Instrucións de seguridade
- VoltagAviso: This product must be used at 110V voltage. Excesivo voltage will damage the product and void the warranty.
- Non expoñas o dispositivo á choiva, á humidade nin a temperaturas extremas.
- Non abras a c.asing. Encomende todo o mantemento a persoal cualificado.
- Asegúrese de ventilar adecuadamente o dispositivo para evitar o sobreenriquecido.
- Manter fóra do alcance dos nenos.
3. Contido do paquete
Comprobe o contido do paquete ao desembalar. Se falta algún artigo ou está danado, póñase en contacto co seu vendedor.
- Aune S17 Pro EVO Headphone AmpUnidade lificadora
- Cable de alimentación
- Manual de usuario
- Remote Control (All-Aluminum)
4. Produto rematadoview
4.1. Panel frontal
Figura 2: Disposición do panel frontal
- Saídas de auriculares: 6.35mm, 4.4mm Balanced, 4-pin XLR Balanced.
- Visualización: 4-inch screen showing volume, input, gain, and quiescent current.
- Botón multifunción: Controls volume, input selection, and other settings.
4.2. Panel traseiro
Figura 3: Conexións do panel traseiro (Example, actual may vary slightly)
- Entradas de audio: XLR Balanced, RCA Unbalanced.
- Preamp Saídas: XLR Balanced, RCA Unbalanced.
- Entrada de enerxía: CA 110V.
4.3. Características clave
- Twin JFET Design: High input impedance and rich sound, with stable mid-point voltage.
- Pure Class-A Amplificación: Mellow, warm, and smooth sound.
- Dual Gain Levels: Optimized for both sensitive IEMs and power-hungry headphones (up to 7.5W output).
- R2R Electronic Volume Chip: High control precision, excellent channel balance, wide soundstage, and accurate positioning.
- Fully-Discrete, Fully-Balanced Circuitry: Ensures high fidelity and minimal interference.
- Fonte de alimentación robusta: 50W low-ripple toroidal transformer and 19200µF capacitor array for powerful and rich sound.
- Sistema de refrigeración avanzado: 3-dimensional cooler structure for stable Class-A operation and overheat protection.
5. Configuración
- Colocación: Place the S17 Pro EVO on a stable, flat surface with adequate ventilation. Avoid placing it near heat sources or in direct sunlight.
- Conexión de alimentación: Connect the provided power cable to the AC 110V input on the rear panel and then to a suitable power outlet.
- Conexión de orixe: Connect your audio source (e.g., DAC, CD player) to the S17 Pro EVO using either the XLR Balanced or RCA Unbalanced input ports on the rear panel.
- Output Connection (Headphones): Plug your headphones into one of the front panel outputs (6.35mm, 4.4mm Balanced, or 4-pin XLR Balanced).
- Output Connection (Preamp - Optional): If using the S17 Pro EVO as a pre-amplifier, connect its XLR Balanced or RCA Unbalanced preamp outputs to your power amplifier ou altofalantes activos.
- Encendido: Flip the power switch on the rear panel to the 'ON' position. The front display will illuminate.
6. Instrucións de funcionamento
6.1. Control de volume
- Rotate the multi-function knob on the front panel clockwise to increase volume and counter-clockwise to decrease volume.
- The volume level is displayed on the 4-inch screen.
6.2. Selección de entrada
- Press the multi-function knob once to cycle through available inputs (RCA, XLR). The selected input will be shown on the display.
6.3. Gain Level Adjustment
- Long press the multi-function knob to switch between Low Gain (G-L) and High Gain (G-H) modes.
- Low Gain is suitable for sensitive IEMs, while High Gain provides more power for demanding headphones.
6.4. Quiescent Current Mode (Class-A)
Figure 4: Display showing 50mA (A-L) and 100mA (A-H) modes
- Double press the multi-function knob to switch between 50mA (A-L) and 100mA (A-H) quiescent current modes.
- The 100mA mode is a high current Class-A operation, offering a richer sound but may lead to a slower temperature rise.
- The display uses two colors to indicate the current level and temperature for easy monitoring.
6.5. Preamp/Headphone Dual Output Mode
The S17 Pro EVO allows independent selection between headphone amplifier output and preamp output. The current volume for each mode can be independently stored.
Figure 5: Output power for different loads and gain levels
6.6. Control remoto
The S17 Pro EVO comes with an all-aluminum remote control for convenient operation of volume, input selection, and other functions from a distance.
7. Características técnicas
7.1. Twin JFET Technology
The S17 Pro EVO incorporates Twin JFETs, which offer high input impedance and a rich, tube-like sound. This design ensures consistent performance and stable mid-point voltage, making it an ideal input transistor for a headphone ampmáis vivo.
Figure 6: Close-up of Twin JFET circuitry
7.2. Powerful Output Stage
A saída final stage utilizes two pairs of output transistors in parallel per channel, resulting in a total of 16 output transistors. This configuration allows for a maximum output of 7.5W, enabling the S17 Pro EVO to drive a wide variety of headphones and IEMs with ease.
Figure 7: Output stage with multiple transistors
7.3. R2R Electronic Volume Control
The S17 Pro EVO employs an R2R electronic volume chip from JRC and dedicated op-amps to construct a 4-way balanced R2R volume control. This design ensures high control precision, excellent channel balance, a wide soundstage, and accurate audio positioning.
Figure 8: R2R electronic volume control chip
7.4. Advanced Cooling System
To maintain stable Class-A operation, which generates heat, aune's industrial designers developed a complex three-dimensional cooling structure. This system integrates a heat sink on the transistor, a heat plate at the bottom, and the chassis to form a comprehensive cooling solution. Heat is efficiently dissipated through rear plate heat emission holes, ensuring stable performance.
Figura 9: Interno view of the 3-dimensional cooler structure
7.5. High-Quality Power Supply
The S17 Pro EVO features a 50W low-ripple toroidal transformer and a dual-power design. Digital control and analog circuits are kept independent to prevent interference. Additionally, a 19200µF capacitor array contributes to the amplifier's powerful and rich-sounding performance.
Figure 10: Toroidal transformer and capacitor array
7.6. Rigorous Component Selection
High-quality components are carefully selected for the S17 Pro EVO, including Hi-Fi electrolytic capacitors, ceramic capacitors, organic thin-film capacitors, and communication-grade PCBs, all contributing to superior sound quality.
Figura 11: Examples of high-quality internal components
7.7. Performance Measurements
Figure 12: Performance graphs demonstrating low distortion and noise
8. Mantemento
- Limpeza: Usa un pano suave e seco para limpar o exterior do dispositivo. Non empregues produtos de limpeza líquidos nin disolventes.
- Ventilación: Ensure that the ventilation holes are not obstructed.
- Almacenamento: When not in use for extended periods, disconnect the power cable and store the device in a cool, dry place.
- Temperatura: The device operates in Class-A mode and will generate heat. This is normal. If the device temperature reaches 69°C, the S17 Pro EVO will automatically switch to 50mA Class-A current mode for overheat protection.
9 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| Sen saída de son | Power not connected; incorrect input selected; headphones not plugged in correctly; volume too low. | Check power connection; select correct input; ensure headphones are fully plugged in; increase volume. |
| Son distorsionado | Input signal too high; faulty cable; incompatible headphones. | Reduce input signal level; try a different cable; ensure headphones are within impedance range. |
| O dispositivo séntese quente | Normal operation for Class-A amplifier; poor ventilation. | Ensure adequate ventilation. The device has overheat protection and will adjust current if necessary. |
| O control remoto non funciona | Batteries depleted; obstruction between remote and device. | Replace batteries; ensure clear line of sight. |
10. Especificacións
- Modelo: S17 Pro EVO
- Marca: Aune
- Peso do artigo: 10.38 libras
- Dimensións do produto: 14 x 11 x 2.76 polgadas
- Potencia de saídatage: 7.5 vatios
- Dispositivos compatibles: Headphones, IEMs
- Tipo de conector: 4.4mm Jack, 6.35mm Jack, RCA, XLR
- Fonte de enerxía: AC adapter (110V)
11. Vídeos oficiais de produtos
Watch the official product video for a visual guide to the Aune S17 Pro Headphone Amp.
Video 1: Aune S17 Pro Headphone Amp Acabadoview
12. Garantía e soporte
Aune products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Aune websitio. Garda o comprobante de compra para reclamacións de garantía.
