AO300 - Receiver S.M.S.L - Free user manual and instructions
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| Product Type | Stereo Receiver |
| Brand | S.M.S.L |
| Model | AO300 |
| Dimensions (W x D x H) | 200 x 200 x 40 mm |
| Weight | 1.2 kg |
| Power Output | 50W x 2 (4 ohms) |
| Inputs | Bluetooth 5.0, USB, Optical, Coaxial, RCA |
| Outputs | Speaker terminals, RCA pre-out |
| Power Supply | 24V DC 3A |
| Remote Control | Included |
| Control Functions | Volume, source selection, power, mute |
| Supported Audio Formats | PCM up to 24-bit/192kHz, DSD128 |
| Bluetooth Version | 5.0 with aptX HD, AAC, SBC |
| Frequency Response | 20Hz - 20kHz (±0.5dB) |
| Signal-to-Noise Ratio | >110 dB |
| THD+N | <0.005% |
| Impedance Supported | 4-8 ohms |
| Material | Aluminum chassis |
| Cleaning | Wipe with dry soft cloth |
| Safety | Use only supplied adapter, keep ventilation |
| Spare Parts | Contact SMSL support |
Frequently Asked Questions - AO300 S.M.S.L
How do I connect my phone via Bluetooth?
Press the BT button on the remote or front panel until the display shows 'BT'. On your phone, search for 'SMSL AO300' and pair.
Can I use optical input?
Yes, connect a Toslink cable to the OPT input. Select 'OPT' using the source button.
What is the power output?
The AO300 delivers 50W per channel into 4 ohms, suitable for most bookshelf speakers.
How do I reset the device?
Turn off the unit, then hold the power button for 10 seconds until it restarts.
Is there a remote control?
Yes, a remote control is included for volume, source, and playback control.
Can I use it with a subwoofer?
Yes, use the RCA pre-out to connect an active subwoofer.
What is the warranty period?
SMSL offers a 1-year warranty from the date of purchase.
Does it support USB playback?
Yes, connect a USB flash drive to the USB-A port for MP3, WAV, FLAC files.
How do I clean the device?
Use a soft, dry cloth. Avoid liquids and abrasives.
What power adapter is needed?
Use only the supplied 24V DC 3A adapter. Third-party adapters may damage the unit.
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USER MANUAL AO300 S.M.S.L
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Product information
Brand : S.M.S.L
Model : AO300
Category : Receiver