Fosi Audio T20 Bluetooth Tube Amplifier
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Fosi Audio T20 Bluetooth Tube Amplifier
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
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Customer Support
WhatsApp: +8613716612254
support@fosiaudio.com
Mon-Fri: 3:00 AM - 3:00 PM PST -
FAQ’s
If you have any questions, please refer here: FAQs
Product details
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QCC3031 wireless Bluetooth 5.0 core support aptX and aptX-HD, Streaming range up to 39ft(12m), With Bluetooth and AUX selector, no pop when Bluetooth connecting;
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50W RMS X 2 power output(4 ohms, 20 Hz - 20 kHz, 0.04% THD), built-in speakers protection circuit, best for outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers, can use iPod, Phone, MP3 players, TV, Echo Dot, CD players, or Streaming Media players as input;
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Adopt 2 x 6A2 tubes to get clear audio sound, tubes can be replaced by JAN 5654W, 6K4, 6J1, GE5654, 6AK5, 6ж1П, 6BC5, 403A/B, EF40, EF95 and so on, with a headphone output for 16-64ohm headphones;
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Small simple compact design but practical and powerful, Hi-Fi Bluetooth amplifier receiver exclusively designed for the customers who pursue HiFi sound;
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Power amp + Headphone amp, perfectly suited for your desktop or a smaller space in your home or office, digital amplifier is easy to connect to your audio system with no software to install or settings to change.
Specifications
| Specifications | Details |
|---|---|
| Model | T20 |
| Chip Set | TPA3116 |
| Output Power | 50W x 2 |
| Headphones Output | 16-64Ohm |
| Terminating Impedance | 2Ω-8Ω |
| Input Mode | Bluetooth + RCA |
| Output Mode | Passive Speakers + Headphone |
| Frequency Range | 20Hz - 20kHz (±1 dB) |
| THD | ≤ 0.04% |
| SNR | ≥ 99dB |
| Input Sensitivity | ≤ 280mV |
| Bluetooth Transmission Distance | Up to 39 Ft(12m) |
| Bluetooth Chip | QCC3031 |
| Bluetooth Version | Bluetooth 5.0 support aptX and aptX-HD |
| Device Dimension | 5.06 x 3.86 x 1.35 inches |
| DC Input Range | 12-24V |
| Power Supply | 24V 4.5A |
What‘s in the box？
| Item | Quantity |
|---|---|
| Fosi Audio T20 Amplifier | x 1 |
| Bluetooth Antenna | x 1 |
| 6A2 Vaccum Tube | x 2 |
| 24V 4.5A Power Adapter | x 1 |
| User’s Manual | x 1 |
Video
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FAQs
Please read our FAQs page to find out more.
How to: Choose the right banana plug?
- Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
- Easy to wire up and solidly connect to amplifier and passive speaker.
- If they do not fit, use a little force to tighten the plugs.
- Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
- Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
- The following situations may cause this issue
- Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
- Possible solution
- Check if the power supply is illuminated when plugged into AC by itself.
Plug power supply into a different socket.
Test the adapter with a meter.
Try a different power supply (within a range of DC input).
Test the included power supply on other electrical equipment.
Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What are the differences in power outputs using the 32V and 48V power supplies?
- Using a more powerful power supply can help prevent distortion.
- Enables amplifier to drive larger, more powerful, or higher-impedance speakers.
What is a GaN?
- The GaN supply has a power output of 240W.
- Offers overload and over-temperature protection.
- The 48V 5A GaN power supply is also available on Amazon.