Amazon.com: pizarra 5-Band Car Audio Equalizer, Adjustable 5 Bands EQ Car Amplifier Graphic Equalizer with CD/AUX Input Select Switch,Black : Electronics
Amazon.com: Xiaomi Mi Compact Bluetooth Speak 2 White : Electronics
Amazon.com: Lanzar Parametric Equalizer Subwoofer - Gain Control & Bluetooth Wireless Audio Connectivity Blue Light Illumination, Version: 4.0, Range: Up to 32 ft Simple Pairing, Black (HTG50EBTH) : Electronics
Amazon.com: Parametric Speaker
Amazon.com: Parametric Speaker
Amazon.com: Audiobank EQ7 1/2 Din 7 Band Car Audio Equalizer EQ w/Front, Rear/Frequency Adjustable /3 RCA Input for Portable Devices + Subwoofer Output Built-in 43-120Hz, 60-200Hz : Electronics
Amazon.com: HEiL sound HPS-5 Two Way Powered Speaker for The Heil Parametric Receive Audio System Equalizer : Electronics
Amazon.com: Hifonics HFEQ7 7-Band 9 Volts 1/2 DIN Pre-Amp Car Audio Graphic Equalizer with Front 3.5mm Auxiliary Input, Rear RCA Auxiliary Input and High Level Speaker Inputs Black : Electronics
Amazon.com: SteelSeries Arena 3 2.0 Desktop Gaming Speakers - Immersive Audio, On-Speaker Controls, 4" Drivers - Wired & Bluetooth - PC, Mac, Mobile : Video Games
Amazon.com: Precision Power E.7 1/2 DIN 7-Band Parametric Equalizer with LED Display : Electronics
Amazon.com: JBL Professional EON712 Powered PA Loudspeaker with Bluetooth, 12-inch ,Black : Musical Instruments
Amazon.com: TEWELL Vintage Speakers for Turntable, Bass Enhanced Technology, Retro Speakers Plug-in Speaker for PC, Laptop, Desktop, Tablet and Projector : Electronics
Amazon.com: JBL Professional PRX915XLF Next-Generation 15-Inch Powered Portable 2-Way Subwoofer with DSP, 12-band parametric EQ, and Built-in Effects, Black : Electronics
Amazon.com: PyleUsa Parametric Equalizer with Subwoofer - 5 Volt RMS Pre-Amp Output with Subwoofer Gain Control, and 2 Input Sources Selectable, Red & Green Light Illumination Selector : Electronics
Amazon.com: SteelSeries Arena 7 RGB Illuminated 2.1 Gaming Speakers with Powerful Bass, Subwoofer, and Bluetooth - For PC, PlayStation, Mobile : Video Games
Amazon.com: Parametric Speaker
Amazon.com: JBL PRX915 Two-Way 15-Inch 2000W Powered Portable Loudspeaker PA System with DSP Bundle with Auray SS-4420 Steel Speaker Stand and XLR-XLR Cable : Musical Instruments
Amazon.com: PyleUsa Parametric Equalizer with Subwoofer - 5 Volt RMS Pre-Amp Output with Subwoofer Gain Control, and 2 Input Sources Selectable, Red & Green Light Illumination Selector : Electronics
Amazon.com: HEiL sound HPS-5 Two Way Powered Speaker for The Heil Parametric Receive Audio System Equalizer : Electronics
Amazon.com: CT Sounds CT-7EQ 7 Band 1/2 Din Parametric Car Audio Equalizer : Electronics
Amazon.com: pizarra 5-Band Car Audio Equalizer, Adjustable 5 Bands EQ Car Amplifier Graphic Equalizer with CD/AUX Input Select Switch,Black : Electronics
These directional speakers throw sound in focused beams like a spotlight - Yanko Design