![Amazon.com: OSD iDSP Subwoofer EQ and Room Tuning Kit, iPhone Android App Control, 2V Amplified Output, Including RCA Cables : Electronics Amazon.com: OSD iDSP Subwoofer EQ and Room Tuning Kit, iPhone Android App Control, 2V Amplified Output, Including RCA Cables : Electronics](https://m.media-amazon.com/images/I/71ulzi8mUTL.jpg)
Amazon.com: OSD iDSP Subwoofer EQ and Room Tuning Kit, iPhone Android App Control, 2V Amplified Output, Including RCA Cables : Electronics
![OSD Black Trevoce 15EQ DSP 1500W Triple 15' Woofers with Native EQ & App Control DSP Room Correction : OSDAudio.com OSD Black Trevoce 15EQ DSP 1500W Triple 15' Woofers with Native EQ & App Control DSP Room Correction : OSDAudio.com](https://www.osdaudio.com/mm5/graphics/00000001/4/Trevoce15-DSP-phone.png)
OSD Black Trevoce 15EQ DSP 1500W Triple 15' Woofers with Native EQ & App Control DSP Room Correction : OSDAudio.com
![ELAC Varro PS250-BK Premium 10" powered subwoofer with Bluetooth® app control and Auto EQ at Crutchfield ELAC Varro PS250-BK Premium 10" powered subwoofer with Bluetooth® app control and Auto EQ at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2023/8/970/g970PS250BK-F.jpg)
ELAC Varro PS250-BK Premium 10" powered subwoofer with Bluetooth® app control and Auto EQ at Crutchfield
![7-band Pre-parametric With Subwoofer Car Audio Eq Tuning Crossover Car Equalizer - Satellite Tv Receiver - AliExpress 7-band Pre-parametric With Subwoofer Car Audio Eq Tuning Crossover Car Equalizer - Satellite Tv Receiver - AliExpress](https://ae01.alicdn.com/kf/H2d4ab5a1662848498ed42e375e2fc0edI.png_640x640.png_.webp)