Your search for amplifier returned the following:

6-1/2" component speaker system — also fit 6-3/4" openings

IN STOCK

78 people say 

• 6-1/2" polymer/mica composite woofers with butyl rubber surrounds
• 1" liquid-cooled silk/polymer composite dome tweeters
• power range: 10-100 watts RMS (300 watts peak power)

Evolution™ ZR Series 6-3/4" component speaker system

LOW STOCK

4 people say 

• mineral-filled polypropylene woofer with butyl rubber surround
• 1" aluminum dome tweeter
• 25-85 watts RMS power range

Evolution™ C5 Series 5-1/4" component speaker system

IN STOCK

3 people say 

• mineral-filled polypropylene woofer with butyl rubber surround
• 3/4" silk dome tweeter
• 25-65 watts RMS power range

Evolution™ C5 Series 5"x7" component speaker system — also fits 6"x8" openings

IN STOCK

4 people say 

• mineral-filled polypropylene woofer with butyl rubber surround
• 3/4" silk dome tweeter
• 25-75 watts RMS power range

Evolution™ C5 Series 6-3/4" component speaker system

IN STOCK

2 people say 

• mineral-filled polypropylene woofer with butyl rubber surround
• 3/4" silk dome tweeter
• 25-75 watts RMS power range
  

5-1/4" component speaker system

IN STOCK

3 people say 

• 5-1/4" copolymer woofers
• 1" Type-M1 anodized alloy tweeters
• 2-125 watts power range

5-1/4" component speaker system

LOW STOCK

14 people say 

• Plus One woven-glass-fiber woofer with rubber surround
• UHF textile dome tweeters
• 2-85 watts RMS power range

Evolution™ Series 5-1/4" 2-way car speakers

IN STOCK

• mineral-filled polypropylene woofer
• 3/4" silk dome tweeter
• 2-65 watts RMS power range
  

Evolution™ C5 Series 6-3/4" 2-way car speakers

IN STOCK

• mineral-filled polypropylene woofer
• 3/4" silk dome tweeter
• 25-75 watts RMS power range
  

Evolution™ C5 Series 5"x7"/6"x8" 2-way car speakers

LOW STOCK

1 person says 

• mineral-filled polypropylene woofer
• 3/4" silk dome tweeter
• 25-75 watts RMS power range