Fosi Audio M04 Subwoofer Power Amplifier
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Fosi Audio M04 Subwoofer Power 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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Small but mighty! Fosi Audio M04 is a 100w mono-channel class D subwoofer amplifier, with a SUB/PBTL switch you can select a subwoofer bass amplifier or full frequency mono amp, can be connected to an active/passive subwoofer and passive speaker.
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The power switch was integrated into volume control, we made it small but supply an in-wall or stand-alone subwoofer the power it needed so you can experience room-shaking low-frequency impact (bass) on movies and music soundtracks.
Specifications
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Input Interface: RCA input
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Output Interface: speaker’s output
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THD: ≤ 0.02% (1KHz, 1W)
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Output: passive subwoofer/speaker
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Input Voltage Range: DC 12V - 24V
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SNR: ≥ 102dB
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Terminating Impedance: 2Ω - 8Ω
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Max Power Output: 100watt @3Ω
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Input Sensitivity: 600MV
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Net weight: 175g
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Dimensions (H * W * D): 103 x 57 x 43MM (4.06 x 2.24 x 1.69’’) includes knobs
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Frequency Response Range: 20Hz-20KHz(±3db)
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Bass Frequency Range: 20Hz-200Hz
Package Include
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Fosi Audio M04 Subwoofer/Mono Amplifier x1
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Power Adaptor x1
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AC ord x1
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User Manual x1
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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.