MTX
MTX TN800.5 5 Channel Amplifier for Powerful Sound
✓ Garage Audio Approved
✓ Australian Warranty
✓ Expert Support
$499.00
● In stock
Professionally Installed by Garage Audio
Ask our Morayfield team about fitment, installation parts and labour pricing.
MTX Audio Terminator Series 800W RMS 5CH Amplifier â TN800.5
Unleash serious sound in your rideâwithout the hassle.
Ready to power your entire system from a single, compact unit? The MTX Terminator TN800.5 is your all-in-one solution for crisp highs, punchy mids, and earth-shaking bass. With a genuine 800W RMS (tested up to a wild 1450W RMS), this 5-channel beast is designed for anyone who wants concert-level audio, but without chewing up space or blowing the budget.
Why Garage Audio rates it:
- All-in-One Power: Ditch the stack of amps. Run your whole systemâfront, rear, and subâfrom one tidy, reliable unit.
- Compact, Tough Design: Easy to fit in any vehicle. Built to handle Aussie roads and rough conditions.
- Crystal-Clear Sound: Class-D circuitry delivers efficient power and super-low distortion (<0.3% THD), so you get clean, powerful audio every drive.
- Customisable Controls: Dial in your perfect sound with fully adjustable gain, crossover, bass boost, and subsonic filter. Remote bass knob included for on-the-fly punch.
- Rock-Solid Protection: Short, thermal, and voltage safeguards keep your gear safe. LED indicators keep you in the know.
- Premium Terminals: Direct-insert power and speaker connections for max reliabilityâno dodgy wiring here.
Specs at a Glance:
- Channels: 5 (Full-Range Class D)
- Power @ 4Ω: 50W x 4 + 300W x 1 (tested up to 105W x 4 + 476W)
- Power @ 2Ω: 75W x 4 + 500W x 1 (tested up to 184W x 4 + 733W)
- Bridged @ 4Ω: 150W x 2 (tested up to 368W x 2)
- Frequency Response: 40Hzâ400Hz (CH 1-4), 50Hzâ250Hz (Sub)
- Bass Boost: 0â12dB @ 45Hz
- Subsonic Filter: 10â55Hz
- Signal to Noise: >90dB
- Size: 270mm (L) x 137mm (W) x 50mm (D)
- Fuse: 125A recommended, 4AWG power wire minimum
- Warranty: 12 months
Whoâs it for?
Tradies with work utes, 4x4 tourers, daily drivers, and car audio nuts who want maximum punch in minimum space. Perfect for anyone keen on a pro-grade installâno cheap shortcuts, just reliable, quality sound.
Tradies with work utes, 4x4 tourers, daily drivers, and car audio nuts who want maximum punch in minimum space. Perfect for anyone keen on a pro-grade installâno cheap shortcuts, just reliable, quality sound.
Why buy from Garage Audio?
We donât do âcheap crap.â You get honest advice, pro installation, and a lifetime install guarantee. Want the best for your build? Letâs get you sortedâgive us a bell or swing by the shop.
We donât do âcheap crap.â You get honest advice, pro installation, and a lifetime install guarantee. Want the best for your build? Letâs get you sortedâgive us a bell or swing by the shop.
Want this amp in your rig?
Add to cart or call us for a chatâno dramas, just epic sound.
Add to cart or call us for a chatâno dramas, just epic sound.

Specifications
Configuration: 5 Channel Amplifier | Channels: 5 | Power Output: 80W RMS x4 + 400W RMS Sub Channel | Frequency Response: 20Hz-20kHz
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Audio Specifications
- Power Rating
- RMS Power
- 800 W
- Peak Power
- 1600 W
- Recommended Amplifier
- Amplifier Channels
- Impedance
- 4 Ohm
- Audio Type
- Product Role
- Brand
Professional Installation Available
Get It Professionally Installed by Garage Audio
Visit our Morayfield workshop for expert product advice, vehicle-specific fitting and our lifetime workmanship guarantee.