DISCOVER TOP DEALS

Save on HDTVs, laptops, tablets and more.

Shop now ›


"12db Signal Amplifier"

Current Offers

  • (78)
  • (456)
  • (3)

Brand

  • (34)
  • (27)
  • (26)
  • (22)
  • (19)
  • (19)
  • (17)
  • (13)
  • (11)
  • (11)
  • (10)
  • (10)
  • (10)
  • (10)
  • (10)
  • (9)
  • (9)
  • (9)
  • (8)
  • (8)
  • (7)
  • (7)
  • (6)
  • (6)
  • (6)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (5)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)

Price

Enter Custom Price Range
to
  • (54)
  • (85)
  • (88)
  • (52)
  • (43)
  • (94)
  • (31)
  • (18)
  • (9)
  • (5)
  • (10)
  • (3)
  • (3)

Sold By

  • (287)
  • (208)

Customer Rating

  • (32)
  • (51)
  • (118)
  • (143)
  • (148)
  • (154)

Inputs Outputs

  • (20)
  • (8)
  • (6)
  • (4)
  • (3)
  • (3)
  • (2)
  • (2)
  • (1)

Amplifier Class

  • (1)
  • (40)
  • (2)
  • (33)
  • (2)
  • (1)
  • (8)

Number of Channels

  • (58)
  • (85)
  • (1)
  • (2)
  • (44)
  • (9)
  • (1)
  • (1)
  • (1)
  • (1)
  • (2)
  • (5)

Wireless Standard

  • (15)
  • (10)
  • (7)
  • (2)
  • (2)
  • (1)

Color

  • (174)
  • (41)
  • (25)
  • (16)
  • (8)
  • (6)
  • (3)
  • (2)

Features

  • (53)
  • (35)
  • (25)
  • (20)
  • (18)
  • (16)
  • (16)
  • (16)
  • (15)
  • (12)
  • (11)
  • (9)
  • (8)
  • (8)
  • (7)
  • (6)
  • (6)
  • (6)
  • (6)
  • (5)
  • (4)
  • (4)
  • (4)
  • (4)
  • (4)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (3)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (2)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)

Collection

  • (85)

Condition

  • (492)
  • (3)
  • (16)

Networking Resources


Networking Questions

Ask fellow shoppers and Best Buy staff. Share your answers.

495 items
View:
Kicker - CX Series 300W Class D Mono Amplifier with Variable Low-Pass Crossover - Black - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 12CX3001
  • SKU: 7707052
FIT (Fail-Safe Integration Technology); adjustable KickEQ bass boost; balanced differential inputs; compact footprint
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$122.99
Clearance
Save $7 (Reg. $129.99)
Audiovox - Digital Signal Amplifier - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.15
On Sale
Save $1.84 (Reg. $24.99)
Pyle - Signal Amplifier - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$23.99
Kenwood - 300W Class D Bridgeable Multichannel MOSFET Amplifier - Gray - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: KAC-M3004
  • SKU: 3500108
Bridgeable design; variable high-pass crossover; low-pass crossover; speaker level input; conformal-coated; signal-sensing turn on
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$199.99
Sony - Portable Hi-Res DAC/Headphone Amplifier - Silver - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: PHA1A
  • SKU: 9380292
Compatible with most smartphones, DMPs, iOS devices and PCs; supports up to 192kHz/24-bit PCM audio file formats; Wolfson DAC; selectable gain; aluminum enclosure; 2 micro USB Type-B inputs; USB Type-A input
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$299.99
Kenwood - Power Pack 180W Class D Multichannel Amplifier - Silver - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: KAC-M1804
  • SKU: 3935019
Conformal coating; Molex cover; line- and speaker-level inputs
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$149.99
Kicker - CX Series 1200W Class D Mono Amplifier with Variable Low-Pass Crossover - Black - Angle
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 12CX12001
  • SKU: 7706044
FIT (Fail-Safe Integration Technology); adjustable KickEQ bass boost; balanced differential inputs; compact footprint
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$287.99
Clearance
Save $32 (Reg. $319.99)
Rocketfish™ - Bidirectional Mini Drop Amplifier - Silver - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: RF-G1179
  • SKU: 9449135
Connects up to 4 devices; for use with cable TV or indoor/outdoor VHF/UHF/FM antennas; 2-way frequency range; LED power-on indicator; AC adapter included
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$29.99
Channel Master - 4-Port HDTV Signal Amplifier - White - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 3414
  • SKU: 9223152
Provides high-performance signal amplification; supports analog and digital broadcast signals and cable modem applications; passive return; 11.5dB; compact design
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$35.99
On Sale
Save $4 (Reg. $39.99)
Channel Master - 1-Port HDTV Signal Amplifier - White - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 3410
  • SKU: 1307738344
Provides high-performance signal amplification; supports analog and digital broadcast signals and cable modem applications; passive return; 15dB; ultramini design
What is Marketplace?

Marketplace Items

  • are sold and shipped by Best Buy-approved third party retailers using our secure checkout; your credit card information stays with Best Buy
  • are not available in Best Buy stores
  • can only be returned to the Marketplace Seller

Learn More

$40.24
Amped Wireless - 1000 mW Wi-Fi Signal Booster - Black - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: SB1000
  • SKU: 4087711
From our expanded online assortment; amplifies the signal strength of compatible 802.11b/g/n Wi-Fi devices; 2.4-2.48GHz wireless frequency; plug-and-play installation
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$79.99
Kicker - Z-Series 2-Channel Amplifier Installation Kit - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 09ZCK4/CK4
  • SKU: 9906707
Direct-connect engineering; twisted-pair technology; hyper-flex cables and wires
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$149.99
Channel Master - 1-Port HDTV Signal Amplifier - White - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 3410
  • SKU: 9223161
Provides high-performance signal amplification; supports analog and digital broadcast signals and cable modem applications; passive return; 15dB; ultramini design
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$29.99
Kicker - 800W Class D Mono Amplifier with Variable Crossovers - Silver - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: 40KX8001
  • SKU: 9065413
FIT (Fail-Safe Integration Technology); adjustable KickEQ; built-in crossovers; double-sided fiberglass circuit board; magnetic panels; bass boost; compact footprint
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$383.99
Clearance
Save $96 (Reg. $479.99)
Etymotic - Bean Quiet Sound Amplifier - Larger Front
You may compare up to four items at a time.

Would you like to compare the first four items you selected?

Yes, go to compare

  • Model: HAR553800F069
  • SKU: 1120227
Compatible with most cell phones; high-frequency amplification; normal and high enhancement levels; ideal for use in quiet and noisy conditions; low-battery signal alerts; 2-position switch; battery-powered
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

$299.99