Jvc Ks dr1004d 4 channel 50w Rms Compact Digital Amp amp Ks dr2001d Mono 300w Rms

JVC KS-DR1004D 4-Channel Marine & Powersport Amplifier - 100 x 4 Watts - • Maximum Power Output: 400W• RMS Power Output (4 ohm) [ 1% THD 14.4V]: 45W x 4 (20 - 20，000Hz)• RMS Power Output (2 ohm) [ 1% THD 14.4V]: 45W x 4 (1，000Hz)• RMS Power Output (Bridged 4 ohm) [ 1% THD 14.4V]: 90W x 2 (1，000Hz)• Class: Class-D• Signal-to-Noise Ratio (reference: 1W into 4 ohms)， CEA-2006 Compliant: > 82dB• Load Impedance• Load Impedance Allowance: 2 - 8 ohms• HPF: 50Hz - 200Hz (-12dB/oct)• LPF: 50Hz - 200Hz (-12dB/oct)• RCA Input: Ach L/R， Bch L/R• High Level Input (Speaker Level Input): Yes• High Level Input Auto Power Control (Signal Sensing Turn On): Yes• Input Sensitivity: 0.2 - 5V• Dimensions (W x H x D): 145 x 45 x 99 mm (5-11/16 x 1-3/4 x 3-7/8)• Weight: 0.7kg (1.5lbs) JVC KS-DR2001D Compact Mono Digital Amplifier for Compact Car， Marine， UTV and Motorcycle / Max Power 600W / 300W RMS @ 2 ohms / Wired Level Control Included - • IP67/IP66 Waterproof & Dustproof• ASTM B117 Rustproof• Vibration-proof• Increased Power Flow• High Quality Capacitors• Magnetic Shielding• Speaker Level Input• Wired Level Control Included• System Expansion Ready• x2 Paired Parallel Speaker CablesSpecifications:• Audio unit• Max Power Output: 600W• Rated Power Output• Stereo (4 ohms)200W x 1 (20Hz - 200Hz， less than or equal to 1.0% THD)• Stereo (2 ohms)300W x 1 (100Hz， less than or equal to 1.0% THD)• Speaker Impedance: 4 ohms (2 ohms to 8 ohms allowable)• Frequency Response (+0， -3dB): 20Hz - 200Hz• Input Sensitivity (+0， -3dB): 0.2V - 5.0V• Signal to Noise Ratio: 97dB• Low Pass Filter Frequency (-12dB/oct.): 50Hz - 200Hz (variable)• Bass Boost Control: 0-+18dB• Bass Boost Frequency: 40Hz / 60Hz / 80Hz