SLAPZ Audio Shock 3K.1D V2 vs Kicker LX 3000.1 Mono Amplifier

Both are 3000W-class mono Class D amps, but they aim at different builds. The SLAPZ Shock 3K.1D V2 is a full-bridge amp with dual 0-gauge inputs, a bass knob with a clip indicator, and strong power at 1 and 2 ohms. The Kicker LX 3000.1 is the more polished unit: gain-match LEDs, KickEQ+ parametric bass boost, FIT+ high-level inputs up to 40V, a dash remote with SHOCwave 2.0, and a wider 10–160Hz response. The SLAPZ demands upgraded electrical, and its warranty depends on it. Owners rate the SLAPZ well on 22 ratings, but Kicker's LX line has the deeper track record for build and noise.

• Choose the SLAPZ Shock 3K.1D V2 if you run subwoofers only, already have the alternator and wiring for a 300A draw, and want a full-bridge amp with a clip-indicating bass knob.
• Choose the Kicker LX 3000.1 if you want a factory-head-unit-friendly amp with gain-match LEDs, parametric bass boost, a dash remote and a wider tuning range.