I cant get the slide controls to change any kind of frequency. Can you help?

There is a button that says EQ , if you do not engage the EQ your in bypass mode and there will be no Equalization . So press that button , but turn the volume to a lower level , because when the the EQ is engaged the volume will bump up . And also make sure your connections are correct, stereo out to EQ in . If your not sure if your hook up is correct refer to you Stereo owners manual.

How does the spectrum analyzer work

It's fake- it doesn't represent anything other than the overall level with a completely made-up representation of frequencies.

i have a sherwood receiver and yamaha speakers for outside deck,would this eq work for this?

Depends upon the inputs and outputs for your receiver. Also depends upon whether your receiver supports an equalizer loop. Also depends upon whether you pipe other sources into your receiver or not. Don't take this equalizer outdoors, of course.

Rockville Apm10b 10 400w Power Supply Active Studio Subwoofer Pro

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$514.05

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Description

🎛️ Elevate your mix, own the room—pro sound control at your fingertips!

VISUAL AUDIO COMMAND - Multi-color LED display and dual VU meters deliver real-time, pro-level feedback
LIGHTWEIGHT POWERHOUSE - Only 6 lbs with durable chassis—pro-grade performance without the bulk
MASTER YOUR SOUNDSCAPE - 42 bands (2x21) for ultra-fine audio tuning from 20Hz to 20kHz
PLUG PLAY VERSATILITY - Front panel 3.5mm MP3/iPod input plus RCA stereo input and record output
SEAMLESS STUDIO INTEGRATION - 19" rackmount design with removable brackets fits any professional setup

The Rockville REQ42-B is a professional-grade dual 21-band graphic equalizer featuring 42 total frequency bands with blue LED sliders for precise audio control. Designed for live and studio use, it offers a 19" rackmount form factor with removable brackets, RCA stereo inputs and record outputs, a front panel 3.5mm MP3/iPod input, and dual VU meters with spectrum analyzer for real-time visual feedback. Weighing just 6 pounds, it combines portability with robust, high-fidelity sound shaping ideal for DJs, sound engineers, and audio enthusiasts.

Specifications

ASIN	B00LZDSL7U
Amazon Bestseller	#1,098,277 in Automotive ( See Top 100 in Automotive ) #119 in Car Component Subwoofers
Color Name	Black
Customer Reviews	3.9 3.9 out of 5 stars (1,025)
Date First Available	September 26, 2014
Is Discontinued By Manufacturer	No
Item model number	REQ42-B
Standing screen display size	19 Inches

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