Feature 1Widely Applicable: The power supply terminal is suitable for power or grounding cables. Wire reducers can be used in most cars, ships, yachts, RVs, etc., effectively improving the transmission sound quality. 2Easy to Install: The wiring terminals do not require crimping, and are easy to install without the need for special tools or professional installation personnel. They can be installed independently and can be completed in a short time. 3Tight Junction:The terminal block has been carefully designed to connect with the cable tightly, without leakage and other problems, and can protect the audio system. 4Durable : The steel wire reducer is made of aluminum alloy, with good conductivity, high hardness, acid and rust resistance, and can withstand any harsh weather. It has a long service life and does not require frequent replacement. 5Compact and Portable: The length of the wiring terminal is 50mm/1.97 inches, the diameter of the threaded ring wiring is 16mm/0.63 inches, and the weight is about 67g, making it easy to carry and reserve.Item Type:AmplifierInputReducerAdapter .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Wiring Hole: 1/0AWG to 4AWGProduct Material: Aluminum alloyFitment: For cars, ships, yachts, RVsPackage List2 x AmplifierInputReducerAdapter