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Monoblock Class D Subwoofer Amplifier, 500 W x 1 @ 2 Ω / 250 W x 1 @ 4 Ω - 14.4V
Born to produce a whopping 500 watts into 2 ohms (14.4V, 1% THD), the RD500/1 amplifier was engineered to generate tons of pure subwoofer bliss from a sleek, ultra-compact chassis. The secret behind its power proficiency is our proprietary NexD™ switching technology, which delivers large amounts of power output with precise efficiency and ultra-low distortion.
For your convenience, the RD500/1’s controls are located on top of the amplifier, beneath a protective cover, with all connections found along one side of its chassis. Signal processing features include a 12 dB / octave low-pass filter, with continuously variable frequency selection from 50-500 Hz, and a variable bass boost EQ. Dual-range, differential-balanced inputs are also on-hand, capable of accepting most input voltage levels. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard, along with a set of preamp outputs so you can easily pass signals to another amplifier.
The RD500/1 is also equipped with an onboard LED-clipping indicator. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity setting, quickly and accurately, with no special equipment needed. The RD500/1 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer output directly from the driver’s seat.
Rated Continuous (RMS) Power @ 14.4 V
|@ 4 Ω||250 W RMS x 1|
|@ 3 Ω||350 W RMS x 1|
|@ 2 Ω||500 W RMS x 1|
|@ 1.5 Ω||N/A|
Rated Continuous (RMS) Power @ 12.5 V
|@ 4 Ω||225 W RMS x 1|
|@ 3 Ω||300 W RMS x 1|
|@ 2 Ω||400 W RMS x 1|
|@ 1.5 Ω||N/A|
- General Specifications
- Signal Processing
- Physical Specifications
- Fit Guide - Vehicle Compatibility Lookup
- Returns & Shipping
|Frequency Response||7 Hz - 500 Hz (+0, -1dB)|
|S/N Ratio, referred to highest rated power||>80 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)|
|S/N Ratio, referred to 1 W||>60 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)|
|Damping Factor @ 4 Ω||>1000 / 50 Hz|
|Damping Factor @ 2 Ω||>500 / 50 Hz|
|THD+N @ Rated Power||<1% @ 2 Ω per Ch.|
|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||4 AWG wire|
|Fuse Rating||50 A (AFS, AGU or MaxiFuse™)|
|Filter Mode(s)||Low-Pass only|
|Filter Slope(s)||12 dB/octave|
|Filter Frequency Range||50 Hz - 500 Hz|
|Detented, Calibrated Filter Freq. Potentiometer||No|
|Filter Defeat Function||No|
|Bass Boost EQ||Yes|
|Output Polarity Switch||No|
|Remote Subwoofer Level Control||Optional (RBC-1)|
|Remote Bass EQ Boost Control||No|
|Pass-Through Preamp Output||Buffered|
|Height (H)||2.13 in / 54 mm|
|Width (W)||9.78 in / 248 mm|
|Depth (D)||6.96 in / 177 mm|
- U.S. 48 Only
FREE: 1-5 Business Days UPS
Expedited Shipping Options: Calculated At Checkout
Large Item Shipping Costs: Calculated At Checkout
We ship most orders the same day if placed before 3pm Eastern time Monday - Thursday. Orders placed after 3pm will ship the next day. Orders placed after 3pm on Friday will be shipped on Saturday, orders placed after 3PM on Saturday will be shipped on Monday. We are glad to announce Saturday shipping – however we do not ship on Sundays. We do not ship on US holidays or whenever our carriers take holidays i.e., USPS, UPS, and FedEx.
Returns - Online Purchases
Purchases made on freemanscarstereo.com are eligible for a return request within 30 days of order delivery. A return authorization number is required for all returns: any return that does not contain a return authorization number will be refused and returned to the sender. Full refunds are only issued for unopened and unused products.
> Full Refunds
In order to be eligible for a refund, item(s) must be unused, unopened, and in the same condition in which it was received. There is no restocking fee for brand new/unopened/sealed items.
Customers will receive a return confirmation email within 1-2 business days that will confirm receipt of their return and confirm whether or not that return will be eligible for a refund. Approved refunds will be processed automatically via a credit back to the customer’s original payment method.
> Partial Refunds
Any item that is damaged, has missing parts, or is not in its original condition is subject to a restocking fee of up to 50% of the order total. If the box or seal is opened there is a 20% restocking fee.
Installed, used, or damaged items may not be eligible for return or, will incur a restocking fee. These situations include but are not limited to the following:
- Any sign of use - including signs of installation, scratches, physical marking, screw holes, or similar.
- Tags, stickers, or other manufacturer labels removed or tampered with.
- Missing parts or the original product packaging is damaged.
- A product that is returned bearing a serial number that does not match the serial number of the product shipped by Freeman’s Car Stereo.
- Physical damage from drops, liquid, mishandling or similar.
- Damage due to improper return packing by customer.
- Mounted or used subwoofer enclosures and speaker boxes.
- Blown, punctured or fried speakers, subwoofers, and amplifiers.
> Late or Missing Refunds
Refunds can take a week or longer to post to your account depending on your bank. If you haven’t received a refund yet, please contact your credit card company or bank. If your refund has still not been posted within 2 weeks of being issued please contact us via email: email@example.com.
> Online Gift Returns
If the item was marked as a gift when purchased and shipped directly to the gift recipient, the gift recipient will receive a store credit for the value of the return. Once the returned item is received, a freemanscarstereo.com gift certificate will be mailed.
We follow all manufacturer’s policies regarding the processing of warranties. Warranty exchanges or repairs are subject to eligibility periods based on purchase date as well as specific manufacturer policy.
Missing serial numbers, physical damage, or customer abused products will void warranties, repairs, and exchanges.
Items That Cannot Be Returned
- - Gift cards
- - Opened and/or used installation parts will not be accepted for return or refund.