Manufacturer's Specs. for the Rockford Fosgate Prime R1693
Product Features
* 6-by-9-inch three-way speaker with 120 watts maximum power handling (60 watts RMS)
* Impedance - 4 Ohm
* Mica-injected polypropylene cone with foam surround
* 1/2-inch mylar balanced dome tweeter and 1.75-inch mylar midrange
* Built-in tweeter high-pass filter
* Frequency Response - 48Hz - 22kHz
* Sensitivity - 89dB
User Reviews from Amazon.com
"These are among the least expensive speakers I have purchased, and are a great bang for the buck. I currently have them installed in an FJ40 (no interior sound deadening materials whatsoever) in 6x9 boxes, connected to a Kicker 08ZX100.2 amp @ 50watts x 2. The sound quality is great for no sub. I do not like to advertise that I have aftermarket sound equipment in the vehicle, so I did not really want explosive, loud bass. These sound tight and sharp. I may add a subwoofer later , but at this time I am very happy with the rich vocals and clear highs these produce. Granted, they are not up there with Focal Audio, or even Kenwood Excelon's, but for $50-$70, you really get your money's worth out of them. I will post an updated review at a later time if the foam surrounds wear out sooner than expected. Normally, I only get butyl rubber surrounds, but at the price, I will not complain.
Other speakers I currently have are:
Kenwood KFC-1662s - cheap and easy to find. Stock replacements for those not interested in "HiFi".
Kenwood KDC-X692 - More expensive than these, and worth it. At more than twice the price of the Rockford's, you can expect a lot, and these deliver. Seem to have much more bass when used full range, with or without an amp.
Infinity Reference 5022 - Good stock upgrades, purchased two pairs for $100 when on sale. They are in my daily driver. They sound clear and tight, but seem to be missing a few mid-range frequencies. I have to turn them up kind up loud to hear vocals clearly. Not much bass, but for 5.25", I shouldn't complain since I have a small sub to help them out."