Polk PA4A Ultramarine WB/USB/SiriusXM Ready/iPod & iPhone Ready/Bluetooth Stereo with App Control
The 200 watt PA4A has been designed and engineered with a solid, marine grade construction ensuring it will withstand the harsh elements encountered in a marine environment such as temperature fluctuations and UV and corrosion damage. This high-tech system features a two-piece modular design with a waterproof commander (IPX6) for the helm and hideaway module (IPX5). The commander features a detachable chrome trim ring, silicone rubber face cover and conformal coated circuit boards which prevent damage from high humidity and salt. It also has the capability to be easily integrated with a boat’s digital control panel. Once the two systems are connected, the main control panel is able to perform all of the functions of the PA4A commander.
Height (H) 2.05 in / 52 mm
Width (W) 10.23 in / 260 mm
Depth (D) 7.09 in / 180 mm
Net Weight 6.15 lb / 2.79 kg
Frequency Response (Main Channels) 12 Hz - 22 kHz (+0, -1dB)
Frequency Response (Subwoofer Channel) 10 Hz - 1 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power (Main Channels) >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω >150 / 50 Hz
Damping Factor @ 2 Ω >75 / 50 Hz
THD+N @ Rated Power (Main Channels) <1% @ 2 Ω per Ch.
THD+N @ Rated Power (Subwoofer Channels) <1% @ 2 Ω per Ch.
Input Voltage Range @ RCA Inputs 100 mV - 4 V RMS
Min.Copper Power / Ground Wire Gauge 4 AWG wire
Fuse Rating 60 A (AFS, AGU or MaxiFuse™)