Description
Included in this kit
This bundle includes a Metra MLAK8-20 8GA Marine Amp Kit 20ft w/50A Waterproof/Protected Breaker, a Hertz HMLC4-13 Marine Line 4 Channel RCA Cable 13 feet / 4 meters, and a Hertz SP-4.500 D-Class 4 Channel Amplifier 125 W RMS x 4 at 2Ω.
1x Metra MLAK8-20 8GA Marine Amp Kit 20ft w/50A Waterproof/Protected Breaker (MLAK8-20)
Power your marine amplifier with a wiring kit that can withstand the harsh environment and still deliver full sound performance. Fully tinned wiring ensures that these amp kits won’t corrode or oxidize and turn green after a season on the water. Oxygen-free copper provides a reliable connection with maximum conductivity. By using 100% virgin copper the tin won’t flake off, something commonly seen when using recycled copper materials. While it is also common to tin just the tips of the wire for cost savings, this practice does not actually provide any benefits. Metra’s amp kits use fully tinned copper wire from top to bottom that can withstand a harsh marine environment and salty air. The ignition-protected 50-amp circuit breaker is IP67 rated with stainless steel connection points for corrosion resistance
Marine compliant amplifier wiring kit
Fully tinned 100% virgin copper wire
BC5W2 marine compliant jacket
50-amp marine circuit breaker is rated IP67 with stainless steel connection points for corrosion resistance
Easy to solder tinned wiring
Connectors, ring terminals, and wire ties included
What’s in the box:
(1) 8-gauge tinned oxygen-free copper side-by-side red power and yellow ground wire (20ft.)
(1) 18-gauge tinned oxygen-free copper blue remote turn-on wire (18ft.)
(2) 8-gauge ring terminal with shrink tube and logo, pre-terminated on each end of the 2ft. red wire
(1) 8-gauge ring terminal with shrink tube and logo, pre-terminated on 18ft. red wire
(1) 8-gauge ring terminal with shrink tube and logo, pre-terminated on yellow wire
(1) Ignition protected circuit breaker (50-amp)
1x Hertz HMLC4-13 Marine Line 4 Channel RCA Cable 13 feet / 4 meters (HMLC4-13)
Versatile 4-channel marine RCA cable ideal for medium-length audio signal transmission. Built to ensure clean, reliable connections between source units, processors, and amplifiers in marine installations.
Features
4-channel RCA cable supports multi-channel audio distribution with a single run
Gold-plated connectors provide superior conductivity and corrosion resistance
Multi-layer shielding prevents signal loss and external noise interference
Tinned OFC copper conductors for durable, high-quality performance in marine environments
Flexible, marine-grade jacket resistant to UV rays, salt, and moisture
4-meter (13 ft.) length perfect for connecting source units to amplifiers or DSP modules
Technical Specs
Cable Length Meter m: 4
Cable Length Feet feet: 13.12
Number of Channels: 4 CH
Cable Color: White
1x Hertz SP-4.500 D-Class 4 Channel Amplifier 125 W RMS x 4 at 2Ω (SP-4.500)
SP 4.500 features Hertz ADC (Advanced D-Class) output stage, reaching up to 85% efficiency and delivering an impressive power rating of 90 x 4 (4Ω) W RMS or 300 W x 2 (4Ω) W RMS when bridged, with an ultra-compact size of 192.7 (7.58) x 130 (5.1) mm (in.) x 49 (1.9). Being ultra-compact with impressive power, SP 4.500 is the ideal choice for Motorcycle applications and for under-seat in sports cars and behind-seat installations in trucks.
General Specs
Channels: 4 - 3 - 2
Nominal power supply voltage: 11 ÷ 15 VDC
Pulse Operating voltage: 6 ÷ 16 VDC
Idling current: 0.9 A
Idling current when off: 0.03 mA
Consumption @ 14.4 VDC, MIN load impedance (Max Musical Power): 27 A
Remote IN: 6 ÷ 15 VDC (9 mA)
DC-REM - Remote Turn on by SPK DC from OUTPUT BTL speakers: 3.5 ÷ 7 VDC
Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power: <0.02%
Damping factor @ 1 kHz, 4Ω, 2 VRMS: >150
Bandwidth @ -3 dB: 10 Hz ÷ 35 kHz
S/N ratio (A weighted @ 1 V Input): 100 dBA
Pre-In sensitivity: 0.6 ÷ 6 VRMS
Speaker-In sensitivity: 2.2 ÷ 22 VRMS
Minimum load impedance:
@ 4Ch: 2Ω
@ 3Ch: 2Ω + 2Ω + 4Ω
@ 2Ch: 4Ω
IP Rating: IP55
Operating Temperature Range: 0°C (32°F) to 55°C (131°F)
Max size (mm/inch): 192.7 x 130 x 49 / 7.58 x 4.18 x 1.9
Weight (kg/lbs): 2.15 / 4.74
Adjustable Crossovers: yes