Question 1

Whats the warranty on this speaker

Accepted Answer

1 year

Question 2

Would I need to upgrade my alternator if I got 2 of these?

Accepted Answer

Good afternoon! I see you're inquiring about the American Bass XMAXXX 15" Subwoofer 8500 Watts Max Dual 1 Ohm X-Max Monster Sub. If your sound system demands more power than your stock alternator can supply, then you will benefit by upgrading to a higher output alternator. However, in order to protect you and your equipment we'd highly recommend that you contact a professional installer. Below I have provided a helpful guide for you, regarding car audio/alternator/battery information.

Do You Need a Bigger Alternator?
The easiest workaround is to keep the volume at a level that the alternator can handle. If you want a powerful sound to go along with your powerful amp, though, you have a couple of options.

Option 1: Install a Stiffening Capacitor
This is like a battery in that it stores electrical charges through a series of conductive plates. Amplifiers can't draw more power from a charging system than what the system is designed to make.

Subwoofers are especially problematic because low frequencies require more energy to produce. A stiffening cap allows a car's amplifier to run at higher output levels by providing a reserve tank of emergency current.

However, a capacitor is a viable solution only if you experience flickering lights or diminished bass responses at high volumes. If you're still drawing too much power at low or mid volumes, the stiffening capacitor isn't going to cut it.

Option 2: Install a High-Output Alternator
In most cases, the solution is to install a high-output alternator. This is an expensive option, but it's the only way to ensure that your high-performance audio system gets the current it needs without compromising your car's electronics.

Capacity Considerations
To figure out how much capacity or amperage the alternator must deliver, determine how much extra power the audio system demands on top of the current system.

The easiest way to ballpark that figure is to use this formula:

amps x volts = watts

For example, if you installed a 2,000-watt amp, assuming a nominal voltage of 13.5V, you'd add roughly 150 amps of demand to the electrical system. Also, calculate how much amperage is drawn by the rest of the car, then add that to the sound system.

The total amperage you arrive at will be a ballpark estimate of the maximum power draw of the car and indicates how big of an alternator you need (measured in amps). It's best to have a professional figure this out; every car and sound system is different. These figures also don't account for the difference in output produced at different engine RPMs (revolutions per minute).

Idle vs. Rated Output
For high-output alternators and car audio systems, the rated output of an alternator typically refers to the amount of current it produces at high RPMs—the kind of engine activity found at highway speeds.

When your engine is idling—that is, running at low RPM—it will be capable of providing only a fraction of that amperage. In some cases, an alternator may be able to produce only half of its rated output.

This is why most people notice problems like flickering lights when idling in traffic or at a stoplight. In this situation, the demand is at its highest while the productive capacity of the alternator is at its lowest. In some cases, turning the volume down while the car is running at low RPMs fixes the problem. Or, choose a higher-amperage alternator.

Hope this helps! Please let us know if you have any further questions or need further assistance!

Question 3

Why does this sun have a low rating

Accepted Answer

I bought 4 and put (4) 5000 watt power acoustik amps on each one. They sound great. I had to build a special lithium battery and high amp alternator. They bang hard

Question 4

What’s the cubic foot of this sub

Accepted Answer

4.5

Mounting Type	Flush Mount
Material	Cast, Carbon Fiber Reinforced Non-Pressed Paper
Model Name	X Max Monster Sub
Speaker Type	Surround Sound, Subwoofer
Special Feature	Durable
Recommended Uses For Product	For Car Audio Systems
Compatible Devices	Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop
Subwoofer Diameter	15 Inches
Controller Type	Voice Control
Surround Sound Channel Configuration	1.0
Included Components	1 American Bass 15-inch subwoofer
Product Dimensions	18.5"D x 18.5"W x 17"H
Item Weight	75 Pounds
Impedance	1 Ohm
Is Waterproof	FALSE
Warranty Type	Limited
Number of Items	1
Control Method	Voice
Speaker Size	15 Inches
Woofer Diameter	15 Inches
Vehicle Service Type	Car
Customer Package Type	FFP
Audio Driver Type	Dynamic Driver
Audio Driver Size	15 Inches
Subwoofer Connectivity Technology	Wired
Connectivity Protocol	Bluetooth
Includes MP3 player?	No
Processor Count	2
Specific Uses For Product	Car audio upgrades, Custom car audio setups, Competitive car audio systems
UPC	684659128850
Manufacturer	American Bass
Item Weight	75 pounds
Item model number	XMAX15-D1
Is Discontinued By Manufacturer	No

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American Bass XMAXXX 15" Subwoofer 8500 Watts Max Dual 1 Ohm X-Max Monster Sub

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