Was very skeptical at first I use this in my car it pushes 2 31/2 and 2 6x9s. work great. my deck has high pass filter so it just does the highs. doesn't run hot and I have gain knobs all the way up. 2 15s for bass . it keeps up with a 1000watt mono blocks bass output . pick one up you can't beat the price might ad well get two.
I don't think it matters at all which way you mount it, vertical or horizontal, i tried it mounted flat first but found a better spot so switched it around.
enough power is produced, it's not over heating or crossing signals between channels.
good buy so far.
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Product Features
• PYLE PLMRA400 4 Channel Waterproof Amp Marine/Car Amplifier
• 400 Watts Output Power (100 Watts x 4 Channels)
• Heavy Duty Aluminum Alloy Heatsink
• Gold Plated Speaker Terminals & Low Level RCA Inputs - High Level Inputs
• Full Manufacturer's 1 Year Warranty
Price : Click here