Alpine - 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover - Black
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Specifications
- Continuous Watts x Channel @ Ohms50 Watts x 4 @ 4 Ohm; 45 Watts x 4 @ 2 Ohm; 100 Watts x 2 bridged @ 4 OhmMaximum Watts x Channel @ Ohms100 Watts x 4Amplifier ClassDNumber Of Channels4Bass BoostNoneBridgeableYes
- Key Specs
- Continuous Watts x Channel @ Ohms: 50 Watts x 4 @ 4 Ohm; 45 Watts x 4 @ 2 Ohm; 100 Watts x 2 bridged @ 4 Ohm
- Maximum Watts x Channel @ Ohms: 100 Watts x 4 (This is the maximum load the speaker, subwoofer or amp can drive.)
- Amplifier Class: D (An amplifier's mode of operation, specifically the conditions in which its electrical current flows for the duration of an audio signal, determines its class. Each class has its strengths and weaknesses when it comes to power efficiency, levels of crossover distortion, and overall sound quality.)
- Number Of Channels: 4
- Bass Boost: None (Circuitry that boosts the bass response of the amplifier, improving audio reproduction enhancing the sound of low frequencies. Fixed boost means the level of bass response is preset, whereas variable boost allows the user to make adjustments.)
- Bridgeable: true (Bridging an amplifier increases the power it supplies to the speaker(s).)
- Low-Pass Crossover: None (Devices with this function allow only audio frequencies below a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
- High-Pass Crossover: Selectable (Devices with this function allow only audio frequencies above a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
- Speaker-Level Inputs: true (Also referred to as high-level inputs. Enables the amplifier to receive a sound signal from another device that does not have RCA, or low-level, inputs.)
- General
- Brand: Alpine
- Model Number: KTA-450
- Product Name: 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover
- Color: Black
- Audio Power
- Continuous Watts x Channel @ Ohms: 50 Watts x 4 @ 4 Ohm; 45 Watts x 4 @ 2 Ohm; 100 Watts x 2 bridged @ 4 Ohm
- Total Power Handling RMS: 200 watts
- Watts Per Channel RMS: 50 watts
- Maximum Watts x Channel @ Ohms: 100 Watts x 4 (This is the maximum load the speaker, subwoofer or amp can drive.)
- Total Power Handling Maximum: 400 watts
- Watts Per Channel Maximum: 100 watts
- Amplifier Class: D (An amplifier's mode of operation, specifically the conditions in which its electrical current flows for the duration of an audio signal, determines its class. Each class has its strengths and weaknesses when it comes to power efficiency, levels of crossover distortion, and overall sound quality.)
- Audio
- Number Of Channels: 4
- Minimum Frequency Response: 15 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
- Maximum Frequency Response: 50 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
- Total Harmonic Distortion: 1 percent (Measurement of the harmonic sound distortion. The lower the percentage, the cleaner the sound.)
- Signal-to-Noise Ratio (SNR): 82 decibels (The ratio of the desired signal's strength to the level of background noise. A ratio higher than 1:1, which equates to greater than 0 decibels, indicates more signal than noise.)
- Bass Boost: None (Circuitry that boosts the bass response of the amplifier, improving audio reproduction enhancing the sound of low frequencies. Fixed boost means the level of bass response is preset, whereas variable boost allows the user to make adjustments.)
- Features
- Bridgeable: true (Bridging an amplifier increases the power it supplies to the speaker(s).)
- Low-Pass Crossover: None (Devices with this function allow only audio frequencies below a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
- High-Pass Crossover: Selectable (Devices with this function allow only audio frequencies above a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
- Remote Control Included: No
- Fan Cooled: false
- Input
- Speaker-Level Inputs: true (Also referred to as high-level inputs. Enables the amplifier to receive a sound signal from another device that does not have RCA, or low-level, inputs.)
- Output
- Preamp Outputs: false
- Dimensions
- Product Height: 1.38 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 7 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Depth: 3.56 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
- Product Weight: 1.3 pounds (The out of box weight of the item.)
- Warranty
- Warranty - Parts: 1 year
- Warranty - Labor: 1 year
- Other
- UPC: 793276242822
Enhance your audio system with this Alpine Power Pack 4-channel car amp. The Dynamic Peak Power technology doubles the amplifier's output power on musical peaks by providing a quick energy boost when needed. This Alpine Power Pack 4-channel car amp delivers 50 watts RMS per channel for maximum output, and the tiny chassis ensures it fits anywhere in your vehicle.
- 200W total power: RMS rating of 45W x 4 @ 2 ohms and 45W x 4 @ 4 ohms, 4 channels driven for robust audio.
- Selectable high-pass filters on front and rear channels: Ensures flexible operation.
- 4 ohms impedance: Conducts power evenly to keep the speaker at an appropriate level.
- 1% THD (Total Harmonic Distortion): Provides clean sound.
- 82dB signal-to-noise ratio: Offers crisp audio.
- 4-channel output: Allows easy system expansion.
- Class D circuitry: Ensures reliable power handling.
- Create Alpine's PowerStack application: You can mount iLX-W650 receiver using a simple swipe interface with an ultra-shallow chassis to your power pack amplifier to create Alpine's PowerStack application.
Whats Included
- Alpine KTA-450
- Cable kit, 4 screws, 4 cable ties, mounting brackets
Product Manuals
Q: What is the signal-to-noise ratio of this amplifier?
A: This amplifier has a signal-to-noise ratio of 82dB.
Q: What is the THD of this amplifier?
A: This amplifier has a THD (Total Harmonic Distortion) of 1%, which ensures clean sound.
Q: Does this amplifier have a high-pass filter?
A: Yes, this amplifier has selectable high-pass filters on the front and rear channels.
Q: What is the total power output of this Alpine car amplifier?
A: This Alpine car amplifier provides a total power output of 200W RMS.
Q: How many channels does this amplifier have?
A: This amplifier has 4 channels.
Q: What kind of circuitry does this amplifier use?
A: This amplifier uses Class D circuitry for reliable power handling.
Compare similar products
Enhance your audio system with this Alpine Power Pack 4-channel car amp. The Dynamic Peak Power technology doubles the amplifier's output power on musical peaks by providing a quick energy boost when needed. This Alpine Power Pack 4-channel car amp delivers 50 watts RMS per channel for maximum output, and the tiny chassis ensures it fits anywhere in your vehicle.
Pump up the audio in your ride with this Alpine Next Generation S-Series four-channel car amplifier. Delivering 60W per channel, or 180W to a subwoofer and 60W to two channels, this amplifier is extremely versatile. The compact size provides mounting versatility. This Alpine S-Series four-channel car amplifier automatically reduces output when it senses overheating risks.
Boost the sound of vehicle door speakers with this KICKER four-channel amplifier. The variable bass boost lets you easily tune the system as desired, and Fail-safe Integration Technology-PLUS provides clear sounds with its noise rejection. This KICKER four-channel amplifier features high-efficiency heat sinks, preventing overheating during long periods of use.
The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.
| Pros for Alpine - 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover - Black | |||
|---|---|---|---|
| Sound Quality, Power, Ease of Installation | Sound Quality | Sound Quality, Power, Size, Ease of use, Price | Sound Quality, Power, Size, Installation Ease |
| Cons for Alpine - 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover - Black | |||
| There were no cons for this product— | There were no cons for this product— | Heat | Heat Dissipation |
Specs
Reviews
Customers are saying
Customers praise the 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover for its sound quality, with users describing it as having great quality and sound. Users also appreciate the power it delivers, especially for its price point. Finally, customers found the amplifier easy to install and were very happy with the installation process.
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- Rated 1 out of 5 stars
Received Open Box Item
This review is for the type of item I received and not the item itself. I purchased this item with the understanding that it was new, but it was open box. I have attached what I received vs. what a new one should look like. It is really unacceptable to send open items when a customer purchases a new one.
Posted by nothappy
- Rated 5 out of 5 stars
Amazing
I added this and was IMMEDIATELY impressed with the sound. This made the music come alive and have depth that my deck couldn’t provide. And it’s tucked in the dash. It’s super easy to install and is 100% worth it. The watts per channel is more than adequate
Posted by Shaundela
- Rated 5 out of 5 stars
Alpine Amp
I have it on my motorcycle and it fits under the fairing. Very nice sound quality.
Posted by EnriqueI
