Description
Arc Audio KS 125.4 Mini 4-Channel Amplifier
Compact Chassis Design For Small Vehicle Applications. Non-Digital Class G/H Switching Design. Designed By Robert Zeff. Protection Against: Reverse Voltage, Over Voltage, Speaker Short, and Thermal Overload. Can Drive Highly Reactive Loads. Hi/Low Level balanced Switchblade RCA Inputs For Flexible Integration Into Most Applications. Optically Isolated Mosfet Power Supply. Stable To 2-Ohms. The KS 125.4 Mini Uses a Patent Pending Auto-Sense Turn-On Circuit That Offers a Significant Improvement in Reliability and Operation. To Further Simplify OEM Integration The KS 125.4 Mini Uses A Fully Balanced Input Stage That is Switchable Between Speaker And RCA Inputs. Simply connecting the Stock Speaker Wires to the RCA inputs Will Supply a Perfect Clean Signal To The Amplifier And Turn It On. In Addition, The Remote Turn-On Connection, With The Flip Of A Switch Becomes A Remote Turn-On Output To Connect The Rest Of Your Amplifiers.
Specifications -
4 - Channels @ 4 Ohms - 75 Watts
4 - Channels @ 2 Ohms - 125 Watts
2 - Channel @ 4 Ohms (Bridged) - 250 Watts
Frequency Response - 20Hz - 20kHz
Crossover Range - 40Hz - 550Hz
Bass Boost - +15dB @ 45Hz
S/N Ratio - 109dB
Input Sensitivity (Low) - 220mV - 3.5V
Max Current Draw - 51A @ 500 Watts 1% THD
Idle Current - 1.14A
Fuse - 2 x 30 Amp
Dimensions - 11.625"(L) x 5.125"(W) x 1.75"(H)
Compact Chassis Design For Small Vehicle Applications. Non-Digital Class G/H Switching Design. Designed By Robert Zeff. Protection Against: Reverse Voltage, Over Voltage, Speaker Short, and Thermal Overload. Can Drive Highly Reactive Loads. Hi/Low Level balanced Switchblade RCA Inputs For Flexible Integration Into Most Applications. Optically Isolated Mosfet Power Supply. Stable To 2-Ohms. The KS 125.4 Mini Uses a Patent Pending Auto-Sense Turn-On Circuit That Offers a Significant Improvement in Reliability and Operation. To Further Simplify OEM Integration The KS 125.4 Mini Uses A Fully Balanced Input Stage That is Switchable Between Speaker And RCA Inputs. Simply connecting the Stock Speaker Wires to the RCA inputs Will Supply a Perfect Clean Signal To The Amplifier And Turn It On. In Addition, The Remote Turn-On Connection, With The Flip Of A Switch Becomes A Remote Turn-On Output To Connect The Rest Of Your Amplifiers.
Specifications -
4 - Channels @ 4 Ohms - 75 Watts
4 - Channels @ 2 Ohms - 125 Watts
2 - Channel @ 4 Ohms (Bridged) - 250 Watts
Frequency Response - 20Hz - 20kHz
Crossover Range - 40Hz - 550Hz
Bass Boost - +15dB @ 45Hz
S/N Ratio - 109dB
Input Sensitivity (Low) - 220mV - 3.5V
Max Current Draw - 51A @ 500 Watts 1% THD
Idle Current - 1.14A
Fuse - 2 x 30 Amp
Dimensions - 11.625"(L) x 5.125"(W) x 1.75"(H)
Used Frequently Asked Questions
- What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
- What is the warranty? All of our used items come with a 90-day warranty.
- What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
- Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
- Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
- Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
- Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
- Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.