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The Alloy series amplifiers feature some technology and features that you will not find anywhere else including options right out of the box to connect to a factory or aftermarket radio source. The included HA-EASY adapter allows you to easily splice into factory wiring to acquire the audio input signal. Another common problem with using a factory stereo is finding a switched 12 volt wire to turn the amplifier on and off. Our Alloy Amplifiers feature a solution where the amplifier can be controlled via DC voltage offset or the traditional 12 volt switched remote turn on lead. Our Alloy amplifiers are also designed for maximum power output! All of the mono block class D amps are 1 Ohm Stable and feature similar power output at a 2 Ohms. This gives you tons of flexibility for woofer options and wiring configurations. The Class D circuitry also keeps the amp running cool with maximum power efficiency. All single and 5 channel models also include a bass remote to allow you to dial in the bass from the comfort of the driver's seat! Included HA-EASY Adapter = Easy Install All Harmony Alloy amplifiers include HA-EASY adapter(s). If installing an aftermarket radio source that has RCA output then the HA-EASY is not going to be needed for your installation. If you are connecting to a factory audio source this adapter is going to make for a much easier installation. The adapter has two purposes: When used with a factory stereo it allows you to splice into the vehicle factory speaker wires to acquire the audio signal It will also turn the amplifier on and off without a traditional 12 volt switched remote wire in most applications. It's possible to generally find your factory speaker wires in a kick panel, in a wire pack under threshold trim or even at the speaker location itself. The factory radio does not need to be removed saving a ton of installation time and saving money on costly adapters. Included Bass Remote Controller The included Bass Remote allows you to easily manage the power output of your amplifier from the comfort of the drivers sear. The remote bass knob is designed to mount near the driver for quick and easy fine tuning based on music type or for passengers who might not share your love of loud, kicking bass! This is especially handy if you listen to a wide variety of music as bass frequencies can widely vary from musical styles. The remote bass controller features a 0 to 12 dB boost range. When we say 0 we mean ZERO. The remote can completely cut out all output on the amplifier which is handy for system setup or also maybe if grandma borrows your car for bingo night (unless she is down with bass then by all means leave it up!) The remote also features a blue LED status light so you can easily tell if your amplifier is on. The remote bass knob also includes all necessary mounting hardware to install it. Daisy Chaining a 2nd Amplifier or Accessory Next up is a feature you will not find on any other brand or model of amplifiers and we are very proud of this! So let's say you have a factory radio and you are running one of the Harmony amps using the included HA-EASY adapter but you also have a 2nd Harmony amp you also want to install or maybe even an amp of a different brand. When the Harmony amp is being controlled by the DC offset to turn it on and off the empty remote terminal now becomes a 12 volt switched output! This can be used to turn on and off the 2nd amplifier or any other 12 volt switched accessory! This output is only designed to turn the device on and off via a low amperage trigger and rated at 1 amp maximum. The sky is the limit of what this could be used for and can be anything you want to be turned on or off with your music. Dialing in Your Harmony Amp The wiring is done, the subwoofers are connected, and all that is left is setting up the controls on the amplifier. Most other brand amps want you to go dig for a hex key or a small screwdriver to dial in your settings. The Harmony Audio Alloy amps include metal adjustment knobs that do have a slot for fine tuning but also are large enough than just be easily adjusted by just your fingers. This may not sound like that big of a deal but trust us when the amp is installed under a seat or on the cab of a truck you are going to appreciate quick and easy setup knobs. Specifications: Alloy Series Mono - 1 Channel Class D Amplifier Power Handling: 14.4V @ 1 Ohm 400 Watts RMS x 1 800 Watts PEAK x 1 14.4V @ 2 Ohm 300 Watts RMS x 1 600 Watts PEAK x 1 Frequency Response: 10Hz-180Hz Signal to Noise Ratio: 95dB, A-weighted RCAs: Input and Full Pass Through Audio Output Turn On: DC Offset or 12V Remote Recommended External Fuse: 50A Recommended Wiring Power Gauge: 4 Gauge Dimensions: 9-3/16" Length x 6-1/8" Width x 2" Height User Adjustable Settings: Input Type: High or Low Level Signal (Selectable Switch) High Level Input Sensitivity: 2.5V - 40V Low Level Input Sensitivity: 90mV - 10V Gain: (Knob Variable) Low Pass Filter: 40Hz - 180Hz (Knob Variable) Subsonic Filter: 0Hz - 50Hz (Knob Variable) Frequency: 30Hz - 80Hz (Knob Variable) Bass Boost: 0dB - 12dB @ 50Hz (Knob Variable) Features: Includes Remote Bass Control Knob with Power Indicator LED Includes HA-EASY Speaker Wire to RCA Adapter to Simplify Installation Compatible with both Aftermarket and Factory Source with DC Offset Feature When DC Offset Feature is used Remote Terminal becomes a 12V Output to Turn On Another Device Brushed Aluminum Case with Light Up Blue LED Harmony Logo Power and Protection Lights to Easily See Amp Status Harmony Audio HA-A400.1 Car Class D Amp Mono 800W Sub Amplifier w/ Bass RemoteHarmony Audio HA-A400.1 Car Stereo Class D Amp Mono 800 Watt Subwoofer Amplifier - 1 Ohm Stable - Includes Bass Remote Frequently Asked Questions for this Product: How fast do you ship out?Most orders placed before 3:00 PM CST will ship within 24 hours. If you need a product by a specific time please contact us before ordering. When will I receive my tracking number?Most tracking numbers are sent out around 5:30 PM CST of the following business day. Please allow 24-business-hours after ordering before requesting tracking information. How fast will I receive my product?Depending on your location it may take 3-4 business days for your order to arrive. Your tracking number will tell you the exact day your order will arrive. If you need an order by a specific date we recommend you to call us. Specifications Harmony Audio HA-A400.1 Car Class D Amp Mono 800W Sub Amplifier w/ Bass Remote SKU: HA-A400.1 Power, Performance and Easy Installation Harmony Audio introduces our Alloy series amplifiers available in Class D including (3) Mono Block, (1) Four Channel and (1) Five Channel models to choose from. The Alloy series amplifiers feature some technology and features that you will not find anywhere else including options right out of the box to connect to a factory or aftermarket radio source. The included HA-EASY adapter allows you to easily splice into factory wiring to acquire the audio input signal. Another common problem with using a factory stereo is finding a switched 12 volt wire to turn the amplifier on and off. Our Alloy Amplifiers feature a solution where the amplifier can be controlled via DC voltage offset or the traditional 12 volt switched remote turn on lead. Our Alloy amplifiers are also designed for maximum power output! All of the mono block class D amps are 1 Ohm Stable and feature similar power output at a 2 Ohms. This gives you tons of flexibility for woofer options and wiring configurations. The Class D circuitry also keeps the amp running cool with maximum power efficiency. All single and 5 channel models also include a bass remote to allow you to dial in the bass from the comfort of the driver's seat! Included HA-EASY Adapter = Easy Install All Harmony Alloy amplifiers include HA-EASY adapter(s). If installing an aftermarket radio source that has RCA output then the HA-EASY is not going to be needed for your installation. If you are connecting to a factory audio source this adapter is going to make for a much easier installation. The adapter has two purposes: When used with a factory stereo it allows you to splice into the vehicle factory speaker wires to acquire the audio signal It will also turn the amplifier on and off without a traditional 12 volt switched remote wire in most applications. It's possible to generally find your factory speaker wires in a kick panel, in a wire pack under threshold trim or even at the speaker location itself. The factory radio does not need to be removed saving a ton of installation time and saving money on costly adapters. Included Bass Remote Controller The included Bass Remote allows you to easily manage the power output of your amplifier from the comfort of the drivers sear. The remote bass knob is designed to mount near the driver for quick and easy fine tuning based on music type or for passengers who might not share your love of loud, kicking bass! This is especially handy if you listen to a wide variety of music as bass frequencies can widely vary from musical styles. The remote bass controller features a 0 to 12 dB boost range. When we say 0 we mean ZERO. The remote can completely cut out all output on the amplifier which is handy for system setup or also maybe if grandma borrows your car for bingo night (unless she is down with bass then by all means leave it up!) The remote also features a blue LED status light so you can easily tell if your amplifier is on. The remote bass knob also includes all necessary mounting hardware to install it. Daisy Chaining a 2nd Amplifier or Accessory Next up is a feature you will not find on any other brand or model of amplifiers and we are very proud of this! So let's say you have a factory radio and you are running one of the Harmony amps using the included HA-EASY adapter but you also have a 2nd Harmony amp you also want to install or maybe even an amp of a different brand. When the Harmony amp is being controlled by the DC offset to turn it on and off the empty remote terminal now becomes a 12 volt switched output! This can be used to turn on and off the 2nd amplifier or any other 12 volt switched accessory! This output is only designed to turn the device on and off via a low amperage trigger and rated at 1 amp maximum. The sky is the limit of what this could be used for and can be anything you want to be turned on or off with your music. Dialing in Your Harmony Amp The wiring is done, the subwoofers are connected, and all that is left is setting up the controls on the amplifier. Most other brand amps want you to go dig for a hex key or a small screwdriver to dial in your settings. The Harmony Audio Alloy amps include metal adjustment knobs that do have a slot for fine tuning but also are large enough than just be easily adjusted by just your fingers. This may not sound like that big of a deal but trust us when the amp is installed under a seat or on the cab of a truck you are going to appreciate quick and easy setup knobs. Specifications: Alloy Series Mono - 1 Channel Class D Amplifier Power Handling: 14.4V @ 1 Ohm 400 Watts RMS x 1 800 Watts PEAK x 1 14.4V @ 2 Ohm 300 Watts RMS x 1 600 Watts PEAK x 1 Frequency Response: 10Hz-180Hz Signal to Noise Ratio: 95dB, A-weighted RCAs: Input and Full Pass Through Audio Output Turn On: DC Offset or 12V Remote Recommended External Fuse: 50A Recommended Wiring Power Gauge: 4 Gauge Dimensions: 9-3/16" Length x 6-1/8" Width x 2" Height User Adjustable Settings: Input Type: High or Low Level Signal (Selectable Switch) High Level Input Sensitivity: 2.5V - 40V Low Level Input Sensitivity: 90mV - 10V Gain: (Knob Variable) Low Pass Filter: 40Hz - 180Hz (Knob Variable) Subsonic Filter: 0Hz - 50Hz (Knob Variable) Frequency: 30Hz - 80Hz (Knob Variable) Bass Boost: 0dB - 12dB @ 50Hz (Knob Variable) Features: Includes Remote Bass Control Knob with Power Indicator LED Includes HA-EASY Speaker Wire to RCA Adapter to Simplify Installation Compatible with both Aftermarket and Factory Source with DC Offset Feature When DC Offset Feature is used Remote Terminal becomes a 12V Output to Turn On Another Device Brushed Aluminum Case with Light Up Blue LED Harmony Logo Power and Protection Lights to Easily See Amp Status Description Harmony Audio HA-A400.1 Car Class D Amp Mono 800W Sub Amplifier w/ Bass RemoteHarmony Audio HA-A400.1 Car Stereo Class D Amp Mono 800 Watt Subwoofer Amplifier - 1 Ohm Stable - Includes Bass Remote Questions & Answers Frequently Asked Questions for this Product: How fast do you ship out?Most orders placed before 3:00 PM CST will ship within 24 hours. If you need a product by a specific time please contact us at 1-877-275-4434 before ordering. When will I receive my tracking number?Most tracking numbers are sent out around 5:30 PM CST of the following business day. Please allow 24-business-hours after ordering before requesting tracking information. How fast will I receive my product?Depending on your location it may take 3-4 business days for your order to arrive. Your tracking number will tell you the exact day your order will arrive. If you need an order by a specific date we recommend you call us at 1-877-275-4434 Shipping Policy Although many orders are shipped the same day that we receive them, due to a variety of factors it can take up to 24 hours to process your credit card information and ship your order. FedEx picks up shipments daily, Monday through Friday around 4:00 PM (Eastern Time). They DO NOT operate on weekends or holidays. If you place an order for shipping on Friday night, the next available shipping day is Monday. Transit time depends on where you are located and which warehouse we ship your order from. Estimated Transit Times IMPORTANT INFORMATION on expedited shipments such as Next Day Air, Second Day Air and 3- Day Select: 1.) The pickup day is not counted as a transit day. 2.) Weekend and holidays are not counted as transit days. Example: If you place an order Friday evening for 3-Day Select shipment and the following Tuesday happens to be a holiday, your order will be processed for Monday shipment. Since Tuesday is a holiday, the first transit day is Wednesday, the second transit day is Thursday and the final transit (and delivery) day is Friday. It is important to understand this scenario for all expedited shipment methods. To avoid delay in the processing of your order, please be sure to provide us with accurate credit card information (name as it appears on the card, billing phone number and address). If this information does not match exactly with what the credit card company has on file for you, you will need to be contacted for the correct information. Contact is normally to the email address that you have provided on your order form. If this information is not correct or you don't check your mail regularly, you may miss important correspondence from us regarding your order. HiFiSoundConnection ships via FedEx and USPS depending on the item. Larger items and heavier orders will ship via FedEx services. Smaller items such as harnesses, fuses etc will ship via USPS service. Although our shopping cart calculates shipping via FedEx, we sometimes will ship via FedEx, DHL or another similar carrier. Each carrier has it's areas where service is better than another and we try to select the best service to get your order delivered in the most timely manner. In instances we use FedEx or another carrier, the shipping charges will be exactly as calculated on our shopping cart. We ship to both the US and Canada and we can ship internationally but PLEASE be sure to contact us first before placing an international order. Note: For any orders shipping internationally you are responsible for any and all custom duty fees and taxes. Most items shipped via FedEx ground will arrive within 2 to 7 days depending on your location in the US and 7 to 14 days within Canada. Free shipping on items only applies to orders shipping to the Continental United States. If you live outside the Continental United States you will have to pay for the normal shipping charges to your location. Customer Service We are here to help! Our customer service staff will be glad to assist you with any questions or concerns you may have. We have a service member available 5 days a week to answer your questions.You can call us from Monday through Friday from 8:30AM - 9:00PM Central Standard Time or Saturday through Sunday from 10:00AM to 7:00PM Central Standard Time. You can also email us and one of our friendly staff will get back to you usually within one to two hours. All emails are answered in the order they are received and we do answer them all. Include your invoice # and email address with all emails. Please make sure to check your junk mail filter for replies. Sometimes email programs will accidentally place our emails in your junk mail folder. Return Policy Within 14 days of receiving your product you may return certain items in their original condition and packaging for a refund. We are not responsible for any shipping and/or handling charges to return an item to HiFiSoundConnection. We will pay the shipping of replacements back to your location.Your refund will be subject to a 20% restocking fee with a $10.00 minimum fee.If exchanging you will NOT be subject to the 20% restocking fee. You WILL have to pay the return shipping costs. We do NOT refund the amount you paid for shipping, duties, taxes, or any other charge incurred getting the item to your location.We reserve the right to charge a 35.00 flat fee on warranty / exchanges if the original product packaging is not included.Other fees associated with items not included with the returned merchandise such as bass knobs, fuse holders, manuals, etc that were not included with the package are also subject to additional fees depending on the item not returned.All returns require an RMA (return merchandise authorization) number. Any packages sent back without an RMA number will be delayed and possibly rejected. Please contact us to obtain an RMA number.All returns will be tested before any refund is given.All International Sales are final, the return/exchange policy does not apply to International ordersThe return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection. Within 30 days of receiving your product, if it becomes defective you can claim our in-house HiFiSoundConnection warranty, unless otherwise stated on the product page. We are not responsible for any shipping and / or handling charges to return a defective item to HiFiSoundConnection.We will pay for the shipping on the replacement product going back to your location.We reserve the right to refer you to the manufacturer for any warranty exchanges.We reserve the right to switch you to a comparable product if the original product is out of stock or discontinued.We will not send your replacement item until we have received and checked in the defective product, this may take up to 5 business days. All returns will be tested before any refund is given.Any item that is returned MUST first have RMA (return merchandise authorization) number before sending the package, if the package does not have an RMA number clearly on the outside of the return packaging it will be automatically refused. Please contact us to obtain an RMA number.Subwoofer Exception: Our warranty does not cover blown voice coils, or subwoofers that have been punctured. This is considered abuse by the manufacturer and is not covered under warranty.Defective items cannot be returned for a refund.All International Sales are final, the return/exchange policy does not apply to International ordersThe return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection. Car AudioCar Audio AccessoriesHome TheaterHome Theater AccessoriesMarine AudioMobile VideoMusical InstrumentsPro AudioPro Lighting © 2001-2017 HiFi Sound Connection. All Rights Reserved. Home | About Us | Policies & Support