Alnico speakers produce a sweet, warm, vintage tone. They sound best at low levels and are great for blues, jazz and mellow rock. Alnico speakers respond quickly, giving the musician a “one with the amp” feel. They are world renowned as the premium speaker with the best tone.

One of the first speakers ever used in a guitar amplifier was a Jensen® Alnico speaker - the P15N. The first Fender® Bassman® and Bandmaster® amplifiers were loaded with Jensen® P15N Alnico speakers. In fact, Alnico speakers were originally used exclusively by Fender® and other amp manufacturers. The P10R was the signature speaker in Fender's legendary Super Reverb®.

Alnico speakers are made with magnets containing aluminum, nickel and cobalt. They are often featured in print as “AlNiCo”, symbolizing the three respective elements. Cobalt is difficult to procure these days resulting in Alnicos being the most expensive speakers in the Jensen® line.

Electrical Characteristics:
Nominal Impedance 8ohm
Rated Power 25 W
Musical Power 50 W
Sensitivity@1W,1m 95.0 dB
P12R
12", 25 watts, 8/16ohm
 Straightforward, bright tone 

General Characteristics:
Nominal Overall Diameter 306 mm 12 in
Nominal Voice Coil Diameter 25 mm 1 in
Magnet Weight 200 g 7.0 oz
Overall Weight  3.55 lbs
Flux Density  0.96 T