nude celebrities
celeb sex tapes
celeb sex tapes
download flash professional cs6 edition price for autocad plant 3d 2015
Article Index
Rockford Fosgate Prime R250-1 Amplifier
Page 2
All Pages

The $149.99 (USD) Prime R250-1 is a single channel Class AB amplifier designed specifically to drive subwoofer loads down to 2 ohms. The chassis of the amplifier measures 11.6” long, 7.7” wide, and 2.4” tall.

When I was a kid I used to read car magazines and dream of someday owning a legendary car like a Ferrari, Maserati, or Lamborghini. In the world of car audio amplifiers, one of the most legendary brands is Rockford Fosgate. But unlike in the domain of supercars, it’s possible to get the legendary performance of a Rockford Fosgate amplifier at a Hyundai price. In 2009, Rockford Fosgate introduced the “Prime” series of products, aimed specifically at the novice enthusiast or simply a buyer who demands top notch quality and value at a more modest price. In this review we’re going to take a look at one of the best sellers in the Prime family, the R250-1 monoblock amplifier.

FEATURES

The $149.99 (USD) Prime R250-1 is a single channel Class AB amplifier designed specifically to drive subwoofer loads down to 2 ohms. The chassis of the amplifier measures 11.6” long, 7.7” wide, and 2.4” tall. Very nicely finished in a brushed aluminum extruded heatsink with a black anodized finish, the cosmetics of the amp belie its low price. Power and speaker connections are made on one end of the amp, using standard nickel plated barrier strip terminals and Phillips screws. The Battery and Ground terminals are large enough to accept 4 gauge crimp terminals, and a set of dual, internally paralleled speaker connections provide convenient connection of multiple woofers. A 30A ATC fuse also resides on the business end of the amp. Spinning the amp 180 degrees presents you with the signal and control connections and adjustments.

For an amplifier at this price, I was impressed by the included control and adjustment features; gain, Punch Bass, a 40-130Hz variable crossover, a 0-180° phase switch, pass through RCA outputs, and even a wired remote level control! A blue LED indicates power on, and a red LED comes on if the internal protection circuits are activated. The only thing missing was a set of high level inputs so you could feed the subwoofer signals directly from your rear speaker wires if necessary.

Taking the bottom off the amp (which voids your warranty, so don’t do it!) reveals a typical Class AB amplifier layout, and at first I was a bit surprised to find large bipolar output devices instead of the usual MOSFET devices that have been found in every Rockford Fosgate amplifier since about 1990. However, none of those amps had this many features for 150 bucks!

The single sided PCB is populated with traditional through-hole parts, and the high mass components like the transformer, and current sense resistors are secured to the board with special adhesives to withstand abuse from temperatures and vibration, ensuring long term reliability. A pair of 2200µF caps provide current to the MOSFET power supply devices, and another pair of 2200µF caps supply energy to the two pairs of high current Epitaxial output transistors. The Prime R250-1 is well-made inside, and has some nice details you don’t expect at this price, like poly caps in the signal path, and a nice Pi filter at the power input to minimize engine noise problems. Plus, all Prime amplifiers feature Rockford’s exclusive POWER (Power Output Without Excessive Regulation) supply design to insure true rated output power.


Read on for Full Results



Related Car Audio Articles

Axxera XDMA7800 Receiver

If you’re one of the many who have put up with that outdated, feature-lacking, inconvenient and poor-sounding OEM radio for too long, I have good news. The folks at Axxera have an affordable, modern, full-featured, good-sounding replacement all ready for…
Read More

Enhanced Sound Quality and Power from Pioneer's New Subwoofers and Micro Amplifier

Pioneer Electronics (USA) Inc. unveiled its new TS-W311D4/S4 and TS-W261D4/S4 Champion Series subwoofers and GM-D1004 4-channel amplifier designed to provide high sound quality, with simplified and easy integration. The latest Champion Series subwoofers feature key technologies, including Pioneer’s patented IMPP…
Read More

Scosche Ships New Installation Kit for Fiat 500

Scosche Industries (www.scosche.com), a leading innovator of mobile electronic products and accessories for the automotive aftermarket, is pleased to announce it is now shipping a new installation kit for the Fiat 500.  Another Scosche “Custom Kit, Factory Fit”, the FT4275B…
Read More

Kicker S10C Subwoofer

Livin’ Loud with “All the Bass – Half the Space” That was the tag line for the original Kicker Solo-Baric subwoofers, and it was pretty true. Back in the 90’s, Kicker figured out a way to get a woofer to…
Read More

Hybrid Audio Technologies Releases Legatia Line

  Hybrid Audio Technologies began producing the Legatia-series component speakers in 2006, and they quickly became the choice of car audio champions around the world.  Today, Legatia is recognized as one of the finest car audio speakers systems built.  In…
Read More