Marine Grade

The KTA-F30W is perfect for when you want to boost your sound system but don’t have the space for a large amplifier. It is compatible with an aftermarket or factory head unit and adds up to 4 times the power over the head unit's original built-in power. The KTA-30FW features Alpine’s exclusive Dynamic Peak Power (DPP) technology which uses a new dynamic power supply design that delivers bursts of power during rigorous musical passages. When the amplifier senses that more power is required, the power supply quickly increases the internal gain level, effectively doubling the power for a significant increase in dynamic range at high music volumes. Specifications Alpine's Class D amplifier circuit w/ Dynamic Peak Power (DPP) 75W RMS x 4 @ 2Ω/4Ω, 14.4V, ≤ 1% THD+N 150W DPP x 4 @ 2Ω/4Ω, 14.4V, ≤ 1% THD+N >85dB S/N (ref. 1W into 4Ω) >0.1% THD (ref. 1W into 4Ω) 20-20kHz Frequency response (+/-1dB) Weather resistant (IP66 rating) OEM-grade connector wire harness Speaker/RCA inputs (selectable, High range=0.5-10V, Low range=0.2-4V) Sound control: Crossovers – Off/HP/LP, Fc=50-400Hz @ -12dB/Oct. (variable); Input gain settings (variable); 2ch/4ch input (selectable) Alpine KTA-30FW Manual

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MHD-Series 5-Channel Class-D Marine Grade Amplifier, 100-Watts x 4ch + 500-Watt Mono @ 1.5-4Ω Thanks to its ability to act as a "one-box solution", the MHD900/5 is ideal for installations where space is at a premium and sound quality is the paramount goal. While extremely compact, this amazing amplifier will comfortably drive a complete high-performance marine audio system: that is, four satellite speaker systems and a subwoofer system... with a very serious 900 watts of power! Using JL Audio's Single Cycle Control switching design and R.I.P.S technology, the MHD900/5 delivers 100W x 4ch, plus a very meaty 500W to its subwoofer channel. Thanks to R.I.P.S., high power can be delivered over a wide range of load impedances, while the tight power supply regulation keeps distortion down, maximizing sound quality. This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment. Specifications Main Channels @ 4 Ω 100 W RMS x 4 Main Channels @ 3 Ω 75 W RMS x 4 Main Channels @ 2 Ω 75 W RMS x 4 Main Channels @ 1.5 Ω 75 W RMS x 4 Main Channels - Bridged @ 8 Ω 200 W RMS x 2 Main Channels - Bridged @ 4 Ω 150 W RMS x 2 Subwoofer Channel @ 4 Ω 500 W RMS x 1 Subwoofer Channel @ 3 Ω 500 W RMS x 1 Subwoofer Channel @ 2 Ω 500 W RMS x 1 Subwoofer Channel @ 1.5 Ω 500 W RMS x 1 Frequency Response (Main Channels) 12 Hz - 28 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 12 Hz - 10 kHz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W (Main Channels) >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >400 / 50 Hz Damping Factor @ 2 Ω >200 / 50 Hz THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω THD+N @ Rated Power (Subwoofer Channel) <0.05% @ 4 Ω Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge Accepts up to 4 AWG wire Fuse Rating 60 A (AFS, AGU or MaxiFuse™) Filter Mode(s): Channels 1 & 2 (front) High-Pass only Filter Slope(s): Channels 1 & 2 (front) 12/24 dB/octave Filter Frequency Range: Channels 1 & 2 (front) 50 Hz - 500 Hz Filter Mode(s): Channels 3 & 4 (rear) High-Pass only Filter Slope(s): Channels 3 & 4 (rear) 12/24 dB/octave Filter Frequency Range: Channels 3 & 4 50 Hz - 500 Hz Filter Mode(s): Subwoofer Channel Low-Pass only Filter Slope(s): Subwoofer Channel 12/24 dB/octave Filter Frequency Range: Subwoofer Channel 50 Hz - 500 Hz Detented, Calibrated Filter Freq. Potentiometers Yes Filter Defeat Function Yes Infrasonic Filter: Subwoofer Channel 30 Hz, Defeatable Remote Level Control Optional (HD-RLC) Remote Level Modes Sub Ch. only Channel Input Mode Switch Yes (2/4/6 ch.) Pass-Through Preamp Output None Source Channel Selection for PreOuts N/A JL Audio MHD900/5 Manual

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MHD-Series 5-Channel Class-D 24-Volt Marine Grade Amplifier, 100-Watts x 4ch + 500-Watt Mono @ 1.5-4Ω Thanks to its ability to act as a "one-box solution", the MHD900/5-24V is ideal for installations where space is at a premium and sound quality is the paramount goal. While extremely compact, this amazing amplifier will comfortably drive a complete high-performance marine audio system: that is, four satellite speaker systems and a subwoofer system... with a very serious 900 watts of power! Using JL Audio's Single Cycle Control switching design and R.I.P.S technology, the MHD900/5-24V delivers 100W x 4ch to its four main channels, plus a very meaty 500W to its subwoofer channel. Thanks to R.I.P.S., high power can be delivered over a wide range of load impedances, while the tight power supply regulation keeps distortion down, maximizing sound quality. This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment. This amplifier is designed for operation in vessels with 24 volt, negative-ground electrical systems. Use of this product in vessels with positive ground and/or voltages other than 24V may result in damage to the product and will void the warranty. Specifications Main Channels @ 4 Ω 100 W RMS x 4 Main Channels @ 3 Ω 75 W RMS x 4 Main Channels @ 2 Ω 75 W RMS x 4 Main Channels @ 1.5 Ω 75 W RMS x 4 Main Channels - Bridged @ 8 Ω 200 W RMS x 2 Main Channels - Bridged @ 4 Ω 150 W RMS x 2 Subwoofer Channel @ 4 Ω 500 W RMS x 1 Subwoofer Channel @ 3 Ω 500 W RMS x 1 Subwoofer Channel @ 2 Ω 500 W RMS x 1 Subwoofer Channel @ 1.5 Ω 500 W RMS x 1 Frequency Response (Main Channels) 12 Hz - 28 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 12 Hz - 10 kHz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W (Main Channels) >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >400 / 50 Hz Damping Factor @ 2 Ω >200 / 50 Hz THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω THD+N @ Rated Power (Subwoofer Channel) <0.05% @ 4 Ω Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge Accepts up to 4 AWG wire Fuse Rating 30 A (AFS, AGU or MaxiFuse™) Filter Mode(s): Channels 1 & 2 (front) High-Pass only Filter Slope(s): Channels 1 & 2 (front) 12/24 dB/octave Filter Frequency Range: Channels 1 & 2 (front) 50 Hz - 500 Hz Filter Mode(s): Channels 3 & 4 (rear) High-Pass only Filter Slope(s): Channels 3 & 4 (rear) 12/24 dB/octave Filter Frequency Range: Channels 3 & 4 50 Hz - 500 Hz Filter Mode(s): Subwoofer Channel Low-Pass only Filter Slope(s): Subwoofer Channel 12/24 dB/octave Filter Frequency Range: Subwoofer Channel 50 Hz - 500 Hz Detented, Calibrated Filter Freq. Potentiometers Yes Filter Defeat Function Yes Infrasonic Filter: Subwoofer Channel 30 Hz, Defeatable Remote Level Control Optional (HD-RLC) Remote Level Modes Sub Ch. only Channel Input Mode Switch Yes (2/4/6 ch.) Pass-Through Preamp Output None Source Channel Selection for PreOuts N/A JL Audio MHD900/5-24V Manual

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