Power Acoustik RZ1-3500D Amplifier vs Power Acoustik MOFO1-6KD Monoblock Amplifier

Both are 1-ohm-stable Class D monoblocks from Power Acoustik, but they sit in different power tiers. The MOFO1-6KD makes more RMS power at every impedance and adds a wider subsonic filter, a higher low-pass range and a remote gain controller in the box. The RZ1-3500D is the smaller, flatter chassis with a dash-mount gain module and a lower fuse count, which suits tight, shallow mounting spots and modest sub setups. Owners rate the RZ1-3500D well on value and ease of install; the MOFO is the step up when your subs want real current.

• Choose the RZ1-3500D if you have a shallow, horizontal mounting spot and a single sub that needs roughly 900 to 2,100 watts RMS.
• Choose the MOFO1-6KD if you run a 1-ohm load, want more headroom at every impedance, and can give it a vertical tower footprint and 4-gauge power wire.