MOREL MPS 1.550｜Mono Power Amplifier for Subwoofers

Even after adding a subwoofer, if you feel that you want the bass a bit deeper or that the bass blurs when you turn the volume up, choosing the right amplifier is important. MOREL MPS 1.550 is a mono power amplifier designed to drive your subwoofer properly. It’s not just about adding more quantity—it helps shape the bass thickness and punch, and is well suited to sound tuning that also takes the integration with the front speakers into account.

With an efficient Class D design and output of 350W RMS at 4Ω and 550W RMS at 2Ω, it’s a configuration that makes it easier to bring out the subwoofer’s performance. When listening to music, you’ll find it easier to perceive the kick drum’s contour and the bass movement, and the whole cabin gains a natural sense of thickness even without turning the volume up. This is an amplifier for those who want bass to work not only by pushing forward, but as a foundation that supports vocals and instrument sounds.

Equipped with a variable low-pass filter from 40 to 220Hz, a bass boost adjustable at 45Hz, and a subsonic filter, it can also be tuned to match the subwoofer you pair and the vehicle cabin. The balanced differential input, which makes it easier to consider integration with OEM audio, is also a reassuring feature when upgrading your system.

The unit size is relatively compact: 51mm in height, 170mm in width, and 214.5mm in depth. It’s easy to install even in limited space, but the final result will vary depending on the mounting location, power wiring, and how you pair it with the subwoofer. Even with the same amplifier, the impression changes depending on where and how you install it and how you adjust it.

At LogOn, we think through the setup together—not only focusing on the bass, but also considering a direction that avoids emphasizing it too much. We confirm your vehicle model and OEM audio configuration, the type of subwoofer, and the music you usually listen to and your preferences. If you want to add bass but want to avoid making the sound noisy inside the cabin, please feel free to consult while looking at the entire actual system. If I were doing it, I would not finish it with only the subwoofer in mind—I would also verify the integration with the front speakers.

Main Specifications / Specs

【Basic Information】
Product name: MPS 1.550
Brand: MOREL
Type: Mono power amplifier for subwoofers
Design: Class D

【Output】
Rated output: 350W RMS (4Ω)
Rated output: 550W RMS (2Ω)

【Performance】
S/N ratio: 100dB
THD: 0.15%

【Adjustment Functions】
Low-pass filter: Variable 40–220Hz
Bass boost: 0 to +12dB (45Hz)
Subsonic filter: OFF / 25Hz / 35Hz

【Input】
Balanced differential input

【Dimensions】
Height: 51mm
Width: 170mm
Depth: 214.5mm