SMSL AO300 User Manual

1. Prodotto finitoview

The SMSL AO300 is a versatile audio device combining a Class D power amplifier, DAC (Digital-to-Analog Converter), and headphone amplifier. It is designed to deliver clear and accurate sound output for various audio setups.

Figure 1.1: SMSL AO300 Power Amplfier con telecomando

Le caratteristiche principali includono:

• MA5332MS & CS43131 Chips: Utilizes MA5332MS power amplifier chip and CS43131 decoding headphone amplifier chip for clear and accurate sound.
• 2.1 Channel Audio System: Supports 165W x 165W output power and 2.1 channel active audio and subwoofer output for deep bass and rich sound.
• Ingressi e uscite multipli: Provides USB, Optical, Coaxial, HDMI ARC, and Aux inputs, along with 4.4mm and 6.35mm headphone outputs.
• Personalized EQ and Filter Selection: Offers 8 EQ audio modes and 5 filters to adjust audio output based on listening preferences.
• HDMI (ARC) Audio Return: Enables audio and video synchronization by connecting to a TV via HDMI (ARC).

2. Note di sicurezza

Please read the following safety notes carefully before operating the SMSL AO300 to ensure proper use and prevent damage or injury:

• Installare questa unità in un luogo ben ventilato, fresco, asciutto e pulito, lontano da luce solare diretta, fonti di calore, vibrazioni, polvere, umidità o freddo.
• Usa il volumetage specificato solo su questa unità. Utilizzando questa unità con un volume più altotage than specified is dangerous and may cause fire, damage to the unit, or personal injury. Our company will not be held responsible for any damage resulting from the use of this unit with a voltage diverso da quello specificato.
• Non tentare di modificare o riparare questa unità da soli. Contattare il venditore o il servizio clienti quando è necessario qualsiasi servizio. L'armadio non deve mai essere aperto per nessun motivo.
• Se si prevede di non utilizzare l'unità per lunghi periodi di tempo (ad esempio quando si va in vacanza), scollegare il cavo di alimentazione dalla presa a muro CA.

Nota importante: le specifiche e le informazioni del prodotto menzionate in questo manuale sono solo di riferimento. Il contenuto di questo manuale è soggetto a modifiche senza preavviso.

3 Caratteristiche

The SMSL AO300 incorporates advanced technologies and design elements to provide a superior audio experience:

• Nuova alta potenza digitale amplifier chip from Infineon, Germany, with higher efficiency and low power consumption.
• Utilizza il chip di controllo elettronico del volume NJW1194 della JRC, proveniente dal Giappone, per un controllo preciso del volume e una distorsione estremamente bassa.
• Supporta la decodifica MQA e la riproduzione MQA-CD.
• New 3rd generation XMOS XU-316, supporting PCM up to 32bit/768kHz and DSD up to DSD256.
• New Bluetooth 5.0 reception for longer transmission distance and better sound quality.
• All Aluminum Alloy CNC precision processing shell, anodizing technology and chamfering process, exquisite workmanship and delicate touch.
• User-friendly operating system that is simple and easy to understand, equipped with full-featured remote control function.
• Per migliorare l'esperienza sonora vengono utilizzati numerosi componenti audio Hi-Fi professionali.
• Terminali di ingresso e uscita placcati in oro di alta qualità.
• Circuito di protezione perfetto per surriscaldamento, sovracorrente, ecc.
• Alimentatore integrato di alta qualità, appositamente progettato per l'audio.

Figure 3.1: Key Features of SMSL AO300

Figure 3.2: Infineon MA5332MS Ampchip lificatore

Figure 3.3: Cirrus Logic CS43131 Decoder Chip

4. Specifiche

5. Cosa c'è nella scatola

Aprendo la confezione dovreste trovare i seguenti elementi:

• 1 x SMSL AO300 Unit
• 1 x telecomando
• 1 antenna Bluetooth
• 1 x cavo di alimentazione CA
• 1 cavo USB
• 1 cavo HDMI
• 1 x SMSL Repair Card
• 1 x Manuale utente

6. Configurazione e connessioni

Proper connection of your SMSL AO300 is crucial for optimal performance. Follow the instructions below to connect your devices.

6.1 Collegamenti di ingresso

Figura 6.1: Oltreview of SMSL AO300 Input and Output Ports

• Ingresso USB: Connect your PC or other USB audio source using the provided USB cable.
• Ingresso ottico: Connect CD/DVD players, DACs, or TVs via an optical cable.
• Ingresso coassiale: Connect TV, CD/DVD players, or DACs via a coaxial cable.
• Ingresso HDMI (ARC): Use a commercially available HDMI cable to connect to an ARC-compatible TV. Ensure the TV's HDMI IN port is labeled "ARC" or "eARC/ARC". The TV's audio output format must be set to PCM. This product supports digital signal input, not video input. The TV remote control cannot adjust the volume of this product via ARC, nor does it support synchronous power on/off.
• Aux (RCA) Input: Connect CD/DVD players or other analog audio sources using RCA cables.
• Ingresso Bluetooth: Connect the Bluetooth antenna to the rear panel. Pair your mobile phone, tablet, or PC via Bluetooth.

6.2 Collegamenti di uscita

• Speakers Out (L/R): Connect your passive speakers to the red (Right) and black (Left) binding posts.
• Uscita subwoofer: Connect an active subwoofer to the SW OUT RCA port for a 2.1 channel system.
• Uscite cuffie: The AO300 features both 4.4mm and 6.35mm headphone jacks on the front panel for direct headphone connection.

7. Istruzioni per l'uso

7.1 telecomando

The SMSL AO300 comes with a full-featured remote control for convenient operation. This remote uses 2 x R03/AAA batteries.

• Accensione/spegnimento: Premere il pulsante di alimentazione per accendere o spegnere l'unità.
• Navigazione: Use the Up, Down, Left, Right arrows to navigate menus.
• MENU/OK: Press to enter menus or confirm selections.
• Ritorno: Torna al menu precedente.
• Input Select (FN): Scorrere le sorgenti di input disponibili.
• Disattiva audio: Disattiva o riattiva l'uscita audio.
• Volume +/-: Regola il livello del volume.

7.2 Navigazione nel menu e impostazioni

Access the setup menu to customize various settings:

• Ingresso: Select the desired audio input source (USB, Optical, Coaxial, Bluetooth, ARC IN, AUX IN).
• Produzione: Configurare le impostazioni di uscita.
• Impostazione dell'equalizzazione: Choose from 8 EQ audio modes (Direct, Tone, SDB, Bass, Super Bass, Rock, Soft, Clear) to adjust audio output.
• Regolazione degli acuti: Adjust treble from -9dB to +9dB. When EQ mode is Direct or other EQ mode, adjusting Treble will automatically change to Tone mode.
• Regolazione dei bassi: Adjust bass from -9dB to +9dB. When EQ mode is Direct or other EQ mode, adjusting Bass will automatically change to Tone mode.
• Filtro: Select from 5 filter options (Fast and Low-latency, Fast and Phase-compensated, Slow and Low-latency, Slow and Phase-compensated, Nonoversampling).
• Impostazioni colore: With 8 menu color settings, you can change the color of the display screen according to your own preferences.
• Bluetooth Clear: To clear the current Bluetooth paired device, press the Up and Down buttons on the remote or twist the knob.

8. Risoluzione Dei Problemi

If you encounter issues with your SMSL AO300, refer to the following common troubleshooting steps:

• No Sound / Device Not Recognized (HDMI ARC):
  • Ensure the ARC input of the product is connected to the HDMI ARC interface of the TV.
  • Verify that the output mode of the TV is set to "ARC/ARC+TV speakers" or "PCM out only".
  • If the TV does not support ARC, connect the TV's audio output port to the audio IN port (Optical, Coaxial, or AUX) of the AO300.
• Suono non abbastanza forte:
  • Check the volume level on your source device and ensure it's set to the maximum.
  • Check the volume on your AO300. If the sound is still not loud enough, you may need to use an amplifier with your DAC.
• DAC Not Working / Sounding as Expected:
  • Ensure your DAC is properly connected and that your device's sound settings are correctly configured.
  • Assicurati che l'audio files are of high quality.
• Difficulty Adjusting DAC's Filter:
  • Changes made by adjusting a DAC's filter can often be subtle and may not be easily noticeable, especially if you're not using high-quality audio equipment or listening to high-resolution audio files. Experiment with different settings to see which one you prefer.

9. Garanzia e supporto

Termini di garanzia:

• Foshan Shuangmusanlin Technology Co., Ltd promises to offer good quality products. If the product is broken in 7 days after purchasing when you use it normally, you can choose to send it back for return, replacement or repairing (only the product does not affect the second sales can be returned).
• Repairing for free in one year if you use it normally.
• La data di acquisto corrisponde alla data riportata sulla fattura o sulla ricevuta utilizzata dal venditore e, se si acquista online, è possibile mostrare lo screenshot della transazione.
• If an inappropriate usage causes the unit damaged, the warranty will be void. All damages by inappropriate use, including using it under non-normal working environment or without following the instructions, disassembling, refitting, repairing by user in private, causing damage by using some fittings instead of the designative or accredited ones, or inability to provide credible proof of purchase, are not covered.
• Contatta il tuo rivenditore SMSL Audio per un reso o una sostituzione.

For further assistance or inquiries, please contact AOSHIDA Audio customer support.