Top 10 Best alpine ktp-445u 4-channel power pack amplifier

Top 10 Best alpine ktp-445u 4-channel power pack amplifier in 2021 Comparison Table

Bestseller No. 1
Alpine KTP-445U Universal Power Pack Amplifier
  • Compact Class D amplifier for factory and aftermarket receivers
  • Universal plug lets you send signal from RCA outputs or speaker-level wiring
  • Runs off same power circuit as receiver.
Bestseller No. 2
Alpine KTP-445U Power Pack Compact 4-Channel car Amplifier 45 watts RMS X 4 Bundle
  • Alpine KTP-445U Power Pack Compact 4-channel car amplifier 45 watts RMS X 4 Bundle
  • Compact 4-channel car amplifier 90 watts RMS x 2 bridged at 4 ohms
  • Absolute TW-600 600 Watts MAX High Efficiency Dome Tweeter with Built-In Crossover (Pair)
  • Absolute USA BT1700 General Use 0.18mm x 3/4-Inch x 20Yd Electrical Tape (Black)
  • Universal 360 Degree Rotation and Swivel Mobile Bracket Holder
Bestseller No. 3
NVX MVPA6 Marine-V Series 6-Channel Bridgeable Micro Class D Compact Car Amplifier | 900W Total RMS
  • Don’t let the size fool you! The Marine-V Series Amplifiers packs a massive punch when it comes to power. Here at NVX, we know how important space is when installing anything aftermarket. The Marine-V Series Amps are capable of being installed anywhere and everywhere in your vehicle. Whether you are installing it in your motorcycle, UTVs, ATVs, boats, and golf carts, the Marine-V Series Amps will take up little space.
  • The Marine-V Series Amplifiers are created for outdoor vehicles. We want to make sure your amplifier is safe no matter the application. Most amplifiers on the market claim to be meant for boats, motorcycles, and other outdoor vehicles, but lack any real measures to protect their amps. Here at NVX, our marine amplifiers are truly ready for the elements and have an IPX67 waterproof rating.
  • The Marine-V Series amps are Class-D amplifiers, meaning they run at or over 90% efficiency. This efficiency is extremely high compared to Class-A/B amps, which run at less than 78% efficiency. So, what does this mean for you? This translates to smaller heat shrinks, less power draw from your vehicle’s charging system, and it makes smaller internal components possible, allowing the overall footprint of the amplifier to be smaller as well.
  • All Marine-V Series Amplifiers are fitted with 3.5mm AUX signal input to work seamlessly with our NVX Bluetooth controllers (like the XUBT4 or XUBT3). This also allows you to have a direct connection to your device’s headphone jack. As an added bonus, all Marine-V Series Amps come with a bass knob, allowing you to have full usage of a subwoofer if you decide to bridge two channels together.
  • General Features: RMS Power Rating: 4 ohms: 100 watts x 6 chans. / 2 ohms: 150 watts x 6 chans. / Bridged, 4 ohms: 300 watts x 3 chans. / Class-D FullRange 6-Channel Amplifier / Heavy-duty aluminum alloy heat-sink OR high-density split-dome convection heat-sink for extreme heat dissipation
Bestseller No. 4
KTP-445A - Alpine 4-Channel 45W RMS X 4 at 4-Ohms Amplifier
  • 45 Watts x 4 @ 4Ω/2Ω
  • Compact size
  • Hear the Difference with this Simple Power Upgrade
  • CEA-2006 Power Rating: 45W x 4 @ 4Ω/2Ω
  • The Power Pack boasts 1 Watt Signal-to-Noise Ratio of 82dB or better
SaleBestseller No. 5
ALPINE iLX-W650 7" Digital Media Bluetooth Carplay Receiver+KTA-450 Power Pack
  • (1) Alpine iLX-W650 7" Shallow Car Digital Media Bluetooth Receiver CarPlay/Android. (1) Alpine KTA-450 400w 4-Channel Power Pack Amplifier Behind Radio/GloveBox Amp. ALPINE iLX-W650 7" Shallow Car Digital Media Bluetooth Receiver CarPlay/Android. 7 anti-glare capacitive touch screen. Audio, video and Bluetooth feature set. Two-finger swipe user interface. Works with Apple CarPlay
  • Works with Android Auto and the Google Assistant. SiriusXM-Ready (SXV300 Connect Vehicle Tuner Kit sold separately; SiriusXM subscription required). Works with Pandora Music for iPhone and Android phones. Rear camera input (camera sold separately). FLAC/MP3/WMA/AAC/HE-AAC music playback via USB. Compatible with the KTA-450 Power Pack Amplifier (sold separately) via PowerStack installation
  • The iLX-W650 used with the KTA-450 is a 2019 CES Innovation Awards Winner. Specifications: Compatible with most factory steering wheel audio controls (adapter required). USB port accommodates various devices and thumb drivesxternal microphone included. Built-in amplifier (16 watts RMS/40 peak x 4 channels). CTA-2006 compliant. Features:
  • ALPINE KTA-450 400w 4-Channel Power Pack Amplifier Behind Radio/GloveBox Amp. Compact size, measuring just 7 W x 3.5 H x 1.25 D. Class D amplifier circuit. Dynamic Peak Power (DPP) technology doubles the power during dynamic musical passages. PowerStacking bracket included for mounting to the iLX-W650 7 Mech-less AV Receiver (sold separately)
  • The KTA-450 used with the iLX-W650 is a 2019 CES Innovation Awards Winner. Specifications: Power Rating: 100W Peak x 4 (2/4 Ohm, 14.4V, ?1% THD+N). CTA-2006 Power Rating: 45W RMS x 4 (2/4 Ohm, 14.4V, ?1% THD+N). >82dB S/N (ref. 1W into 4 Ohm)
Bestseller No. 6
Alpine KTA-450 4-Channel Power Pack Amplifier with Dynamic Peak Power 45W RMS x 4, at 2 Or 4 Ohms
  • Features: 4-channel car amplifier, 50 watts RMS x 4 at 4 ohms (45 watts RMS x 4 at 2 ohms), 100 watts RMS x 2 bridged at 4 ohms, CTA-2006 compliant, Dynamic Peak Power (DPP) technology adds a burst of power when needed, Selectable high-pass filters (60, 80, 120 Hz at 12 dB/octave) on front and rear channels, Preamp and speaker-level inputs, Selectable 2- or 4-channel input.
  • PowerStack bracket included for mounting amp behind Alpine iLX-W650 digital multimedia, eceiver (#500ILXW650), Wiring, hardware, and fuse not included with amplifier, 12-gauge power and ground leads and a 20A fuse recommended, Dimensions: 7"W x 1-3/8"H x 3-9/16"D.
Bestseller No. 7
Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier
  • Digital Amplifier Technology
  • Speaker Level Input w/ Signal Sensing Turn-on
  • 2 Ohms Load Capability
  • Power MOS-FET Switching Power Supply
  • 1m (3.3ft) RCA Cable
Bestseller No. 8
Skar Audio Single 12" Complete 1,200 Watt SDR Series Subwoofer Bass Package - Includes Loaded Enclosure with Amplifier
  • All-in-One Complete SDR Series Loaded Subwoofer Complete Bass Package
  • Peak Power: 1,200 Watts, RMS Power: 600 Watts
  • Includes x1 Skar Audio SDR-1X12D2 Single 12" Loaded 1,200 Watt Vented Subwoofer Enclosure
  • Includes x1 Skar Audio RP-800.1D Class D 800 Watt Monoblock Amplifier
  • Includes x1 Skar Audio SKAR4ANL-CCA 4 Gauge Complete Amplifier Wiring Kit
SaleBestseller No. 9
Alpine PDR-V75 5 Channel Digital Amplifier - 100W RMS x 4 + 350W RMS x 1
  • PDR Series 5-Channel Class D Car Amplifier | RMS Power Rating: 4 ohms: 75 watts x 4 chan. + 250 watts x 1 chan. | 2 ohms: 100 watts x 4 chan. + 350 watts x 1 chan. Bridged | 4 ohms: 200 watts x 2 chan. + 350 watts. x 1 chan. | CEA-2006 compliant
  • Variable high-pass filter (50-400 Hz, 12 dB/octave) on 4-channel section | Variable low-pass filter (50-400 Hz, 24 dB/octave) on sub channel | Variable subsonic filter (8-40 Hz, 24 dB/oct) on sub channel | Variable bass boost (0-12 dB at 50 Hz) on sub channel
  • Preamp and speaker-level inputs (speaker wire to RCA adapter required for speaker-level input) | Class-D amplifier design | MOSFET power and output stages | Fuse rating: 40A x 2 | Dimensions: 10-3/4"W x 2"H x 6-1/2"D
  • All PDR-Power amplifiers are individually tested and have certified power ratings. Each amp comes with their very own verification certificate documenting its actual power output exceeds the rating by a wide margin
  • PDR-Power amplifiers come with a rotatable illuminated badge that makes a very attractive presentation when mounted vertical or horizontally
Bestseller No. 10
Alpine KTA-30FW 75W x 4 Compact All-Weather Amplifier
  • 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.
  • 75-watt x 4 powered amplifier. Alpine's dynamic pulse power (dpp) technology delivers bursts of power during rigorous musical passages, effectively doubling the amp's power when needed. High quality, waterproof connector, for use in exposed areas such as side-by-sides, boats, open-top vehicles.
  • Weather resistant: IP66 Rated Amplifier
  • Speaker/RCA inputs (Selectable, High range=0.5-10V, Low range=0.2-4V)
  • 75 Watts RMS x 4 at 2 OR 4 ohms

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Our Best Choice: Alpine KTP-445U Universal Power Pack Amplifier


Our rating:4.4 out of 5 stars (4.4 / 5)






Highly effective things do occur in compact deals!Incorporate larger output and a lot more dynamic response with this quick-to-put in Universal Power Pack enhance. The KTP-445U Common Electric power Pack amplifies both an aftermarket or manufacturing facility installed head device electrical power output, resulting up to a 150 percent power enhance in excess of the first electricity from the head unit’s developed-in amplifier.Overview45 Watts x 4 @ 4Ω/2Ω90 Watts x 2 @ 4Ω BridgedFor aftermarket and factory installed systemsCompact sizeEasy Set up and FlexibilityCompactCompact size allows the KTP-445U match exactly where most amplifiers won’t. The KTP-445U arrives geared up with the RCA and Auto-Sensing-Speaker amount connectors and it fits powering the head unit in the sprint of most autos. It’s little and compact at only 7-7/16” x 1-1/2” x 2-1/2”. The measurement and flexible wires make the Energy Pack an simple alternative to conserve place.Unbiased Filters for Rear & Front InputsHigh-Go selectable switches for Front & Rear let frequency filtering for a huge selection of speakers. Select from full selection to selectable variety: 60Hz, 80Hz or 120Hz to wonderful-tune your crossover factors.Configurable InputsNeed configurable selections for Speaker-Degree or RCA inputs to the Electric power Pack? On the bottom panel of the Electric power Pack there are selectable enter choices to accommodate Speaker-Level (.5V-10V) or RCA (.2V – 4V) inputs. Selectable 2 Channel and 4 Channel selections give you the regulate to ascertain source inputs, and can get rid of the need for Y-adapters.Available Entrance & Rear GainsThe Energy Pack supplies very simple variable gain controls on the close panel for versatility and a wide wide variety of system applications.Finest Sign-to-Noise Contender In Its ClassIn purchase to ensure that Alpine audio high quality is read at your ears, we have created a system that presents an unbelievably low sounds floor, using additional treatment to assure a clean up signal path, with no extraneous interference.

Common plug allows you deliver signal from RCA outputs or speaker-amount wiring
Runs off identical ability circuit as receiver.

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