MTX RTF10AS picture


25cm 10“ 300W RMS 4Ω Flat Sealed Passive Enclosure with MDF construction


The MTX RTF10AS subwoofer is an ultra flat sealed enclosure with a 25cm 10“ 4Ω subwoofer. It handles over 300W RMS and 900W Peak, which is exceptional given its shape. Its small size allows it to easily fit behind a seat, under a seat or in a trunk. And of course, it takes up very little space compared to the drastic change it provides in terms of sound. Despite its reduced dimensions, it adds a significant amount of bass in the installation, which instantly makes reproduction more enjoyable and more musical. It's more comfortable and less aggressive. One of the great qualities of this box is that it does not show its particular shape. When listening, there is almost no difference with a usual shaped subwoofer. And that is a real achievement! We recommend using the MTX TX2275 amplifier as a bridge to power this subwoofer.


• Super flat and very small, it fits everywhere
• 25cm subwoofer for ample and powerful bass
• Exceptional power handling 300W RMS and 900W Peak
• Closed enclosure and subwoofer optimized to work together
• Solid 16mm MDF construction, rubber suspension, push terminals
• Thanks to an incredible x-max, it works like a conventional subwoofer
• Impossible to do more bass given the small size
• Ultra competitive price
• Recommended amplifiers: MTX TX2275 TX2450 TR275 TR450 TX480


• Flat Sealed Passive Enclosure
• 25cm 10“ subwoofer
• CEA RMS power: 300W
• Peak power: 900W
• Impedance: 4Ω
• Sensitivity: 91dB / 2.83V / 1m
• Response: 29-300Hz
• Weight: 10Kg
• Dimensions: 34x48x13cm

Recommended efficient associations

Recommanded Amplifier: TX2275 (Bridge mode), TX2450 (Bridge mode)


The RTF10AS is a 4Ω subwoofer enclosure that supports up to 300W RMS. The ideal amplifier is therefore the MTX TX2275 or the TR275 which optimize their power under 4Ω in bridged mode. They are made for each other.
It is also possible to use the TX2450 and TR450 on two bridged channels. But they are less powerful ...
The best for last… the TX480D is very dynamic and very powerful. It is also an ideal combination.


MTX wants you to enjoy your hearing for a long time. Excessive exposure to loud volumes can damage your hearing. The United States Department of Labor recommends not exceeding the following recommendations:
90db : maximum 8 hours / day
92dB : maximum 6 hours / day
95db : maximum 4 hours / day
97db : maximum 3 hours / day
100db : maximum 2 hours / day
102db : maximum 90 minutes / day
105db : maximum 60 minutes / day
110db : maximum 30 minutes / day
115db : maximum less than 15 minutes / day
120db : immediate danger, 0 minutes / day



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