Speaker is in great working condition.

Realistic Stereo Bass Enhancer/Subsonic Filter, Model 42-2106. This is essentially an adjustable-frequency single-band boost equalizer with a frequency response of 22 Hz to 100kHz. You can use it to sonically extend smaller speakers toward a lower bass range for extended low frequency output. In excellent used condition, in its original box and styrofoam packaging. Please ask any questions you may have prior to purchasing. This item will ship promptly and securely upon receipt of payment. Thanks for viewing.

PSB Alpha Subsonic 1 Powered Subwoofer Control Board. *This listing has been revised. ONLY the control board is being sold, NOT the entire speaker.* **The condition description has been changed due to a mix up with another product. This subwoofer works perfectly WITHOUT sound quality issues.**

Vtg Audio Control D-520 Equalizer / Speaker Control System With Subsonic Filter

Questions? Contact us at QuickStopAuctions Audio Control Octave Rackmount 10-Band Stereo Equalizer w/ Subsonic Filter RCA Please read the entire description. Please refer to the pictures provided as they are a vital part of this listing and show more detail on the condition of the item. Only those items shown in the photos will be included in the auction. Photos are of the item you will receive, unless stated otherwise. Cosmetic Condition The equalizer is in fairly good cosmetic condition, but several small rubber feet on the bottom are missing. It has scuff marks, scratches, and general wear from use. Please see the photos for more detail.No other parts or accessories are included. Only that which is shown in the photos will ship. Testing The equalizer powers on and is fully functional. Removed from service in an education environment. Return Policy If you receive the item not as described you will have 14 calendar days to return it. To be eligible for a return, your item must be in the same condition that you received it (this includes new and sealed items). Once we receive your return, we will inspect the item and notify you of the status of your refund. Shipping Items are shipped via USPS or UPS. Items will be shipped out, at the latest, the day after payment is received. Inventory ID: 45675

KAB RF1 Great Sound Escort Rumble/Subsonic Filter. Used in excellent condition. No returns - No International shipping. Please review the item description carefully before bidding, as returns are not accepted. If you have any questions or would like additional details or photos before bidding, please reach out and I will do my best to accommodate your request. I am not responsible for a buyers inability to read or review the items description - if in doubt, ask. Payment is required within 72 hours of the close of auction. All items will be carefully packaged and shipped out via USPS within three business days, but most often within a single business day. Thank you for looking and good luck.

The Vintage Audio Control Model 520 Stereo Equalizer with Subsonic Filter is a classic piece of equipment by AudioControl. It is designed to enhance the audio quality of your home stereo system. This equalizer is known for its great performance and is in good working condition. Works fine. No issues.

Speaker is in great working condition.

Speaker is in great working condition.

AUDIO CONTROL Corp. USAmodel 520 a . Recent service $68 by RJ Electronics Highly Reputable Service Facility near my hometown . 18 db /octave with subsonic filter . plug and play ready . model A much rarer than model B direct Eq . ten knob control unit 5 right & 5 left channels . check feedback buy with confidence . excellent condition . will ship with service receipt . made in the USA

Vintage Audio Control Model 520 Series B Stereo Equalizer System Subsonic Filter

Used good,Have some small scratches Working good Sound good Thank you

Speaker is in great working condition.

Luxman L-235 Speakers Tone Subsonic Monitor Tape Dubbing Loudness Mode High Cut KnobKnopf Das Teil ist nicht neu, ist gebraucht, kommt aus einem gebrauchten zerlegten Gerät. Beim Kauf mehrerer Artikel bekommen Sie zu viel bezahltes Porto zurückerstattet. Versand weltweit Sie sind auf der suche nach Teilen von LUXMAN L-235? Bitte schauen in unseren anderen Angeboten nach oder fragen. Are you looking for other parts of Luxman L-235? Please check our other offers or just ask. Differenzbesteuert nach §25 USTG - Shipping worldwide.

Vintage Audio Control C-22 EQ Octave Equalizer Stereo 10 Band Subsonic Filter Tested working well, the buttons on the right are a little scratchy but work PLEASE CONTACT US WITH ANY QUESTIONS YOU HAVE REGARDING THIS AUCTION VIA EMAIL - DO NOT CALL OUR LOCATION, THE PRODUCTS ARE OFTEN NOT IN STORE AND DETAILS ARE NOT AVAILABLE FROM STAFF Terms: Please ask all questions before you bid. Bidders with zero feedback or are newly registered to eBay must contact us prior to bidding. We reserve the right to cancel any and all bids. We reserve the right to end this auction at any time. Payment is due within 5 days of the close of the auction. WE ACCEPT PAYPAL TRANSACTIONS ONLY!! All sales are final. New York residents must pay sales tax. Returns: Returns are accepted for reasons of authenticity or defective replacement only on new items, no returns for used items. The buyer is responsible for the price of shipping back on returned items, no exceptions. All returned items must arrive in the same condition they were sent. Buyer responsible for any shipping damage and must contact us within 24 hours of receiving a damaged item. Shipping: WE ONLY SHIP TO PAY PAL CONFIRMED ADDRESSES – NO EXCEPTIONS. Insured shipping for the winning bidder to anywhere in the contiguous 48 United States. Bidders from Hawaii and Alaska: please contact us before bidding to obtain a shipping quote. NO INTERNATIONAL SHIPPING!! (EXCEPT CANADA)

Plugged it in and nothing happened. No testing done as I do not know how to test it. Selling as is for parts or repair, some wear from normal use and storage. Please see photos.

Speaker is in great working condition.

This is a really cool looking older unit. It does power up, but I couldn’t get it to work. Might be something small or big. I don’t know. But I did some searching for it. Apparently, it’s rather rare.

Vtg Audio Control D-520 Equalizer / Speaker Control System W/ Subsonic Filter

This Realistic stereo bass enhancer/ subsonic filter is in great shape. Please view the pictures (particularly the one of the back) for more information. It does turn on.

Working,deep bass.Comes with power cord.About the PSB SubSeries 5iExperience tight, punchy bass in your home theaterPSB designed the SubSeries 5i to deliver great bass in any small-to-medium room. They carefully designed the 10 woofer and paired it with a 150-watt internal amplifier. The result is extremely tight bass that delivers the punch that high performance home theaters command. Feel the rumble of explosions in your Hollywood blockbusters or hear the crowds roar when you score a goal in your favorite video games. Its great for music, too, like when you want to relax to the taut, tuneful lows of an upright bass from a classic jazz number. Plus, the front-mounted controls make it simple to adjust the volume and crossover frequency on-demand, so you can get the best performance in your room.Product highlights:frequency response 30-150 Hz (±3dB)built-in amplifier delivers 150 watts of continuous power, 450 watts dynamic peak powercontinuously variable low-pass 50-150 Hz crossover10 polypropylene woofer conebass-reflex (ported) enclosurefront-mounted volume and crossoverrear-mounted phase switch and auto on/offline-level/LFE inputsspeaker-level inputs/outputsblack ash finish12-5/16W x 17-3/8H x 17-1/8Dweight: 31pounds

Speaker is in great working condition.

Not fully tested. I partially tested it, and all the sliders seem to work. No further testing SOLD AS IS ABOUT SHIPPING Shipping Within US 48 Continental States Only (No shipping to Puerto Rico, Alaska, Hawaii) will be shipped by Ups, Fedex Or USPS Ground according your location with free tracking number and It will be shipped thru the address provided by eBay so please make sure its right during checkout. We usually ship within two business days. Sorry no international shipping available. Feel free to ask me any questions. NOT SHIPPING TO P.O BOX ADDRESSES ABOUT RETURN Please contact seller if you have any inconvenience with your item, before open an eBay case or leave a negative feedback. We can work to solve the issue. Thanks

Plugged it in and nothing happened. No testing done as I do not know how to test it. Selling as is for parts or repair, some wear from normal use and storage. Please see photos.