Very good used condition, tested. Vintage piece, minor signs of wear.. Please see pics and description, let me know if you have any questions “before” placing an order. Original shipping fee will not be refunded unless we are in error.. 30 day returns on most items, If you have any special requests or shipping needs please let me know before ordering.. Have a Great Day!!

Powers on but when equalize program button is hit the left channel produces no sound. This Audiocontrol D-10 Octave Equalizer With Sonic Filter is a great addition to any home audio setup. It is designed to enhance the sound of your music and remove any unwanted frequencies. The equalizer is made by AudioControl, a trusted brand in the industry. It is compatible with most receivers and amplifiers, making it a versatile product. The Audiocontrol D-10 is an octave equalizer that works by reducing or amplifying specific frequencies to improve the overall sound of your music. It is easy to use and comes with a sonic filter to help eliminate noise and interference. This product is ideal for anyone who wants to improve their home audio experience.

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

The unit has been tested and works. Gently used. See photos. Priced to sell. Will not last. Nice piece. Enhance the sound quality of your home audio system with the AudioControl Octave Stereo Equalizer. This unit has 4 stereo RCA outputs and 4 stereo RCA inputs allowing you to connect multiple devices. The analog features of this equalizer offer a unique sound experience for audiophiles. The AudioControl Octave is a high-quality unit made in the United States with a maximum power of 120W. Its sleek black design fits seamlessly into any home audio setup. Get the most out of your favorite music and movies with this top-notch equalizer. Thanks for looking

Tested working in good condition

This vintage audio equipment is in great condition and works great. There is very little wear from normal use. 2 of the rubber feet are missing from the bottom of the unit. Please see photos.

Vintage audio equalizer, untested in average condition for its age. If you need any more pics or if you have any questions, please ask.

Enhance your audio experience with the Audiocontrol D-10 Octave Equalizer. This high-quality equalizer is designed to provide you with a clear and immersive audio experience. It has been tested and works perfectly. The Audiocontrol D-10 is an ideal choice for those who want to elevate their home audio experience. This equalizer is made by AudioControl, a reputable brand known for producing high-quality audio equipment. It is designed to provide you with an octave band-pass filter, which helps to reduce unwanted frequencies and enhance the overall sound quality. The Audiocontrol D-10 is perfect for those who want to experience their music like never before.

Up for sale is a Vintage Audio Control C-22 - 10 Band Octave Equalizer in EXCELLENT condition. Tested and working. In excellent cosmetic condition as well. Please see the pictures for more details. Additional pictures can be provided upon request. The item will be sent out in a padded cardboard box for safe & secure delivery. Please check out my other listings. Thank you.

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

Tested and works well. Vintage unit as some normal wear Comes with 1 set of Audio RCA cables Pics of exact unit and accessories that will ship We ship within 1 business day and use USPS, UPS or FedEx at our discretion depending on your location. Business hours are only Monday through Friday so all Friday, Saturday, Sunday orders will ship on Monday. After shipped, you can find tracking # in your order details in your MyeBay account

Tested, Working, switches cleaned, lubed. Thanks.

Tested, Working, switches cleaned, lubed. Thanks.

Free eBay listing template designed by dewiso.com Description: The Audio Control D-11 is a sophisticated equalizer and spectrum analyzer designed for audio professionals and audiophiles who seek precision in sound shaping and analysis. This device is known for its ability to finely adjust and balance audio frequencies to optimize sound quality across various environments, whether in studio settings or home audio systems. The D-11 features multiple bands of equalization, typically ranging from low bass to high treble, allowing users to mold their audio output with great detail. Additionally, the integrated real-time spectrum analyzer provides visual feedback of audio output, helping users identify and correct imbalances in the sound spectrum. This combination of advanced equalization and analysis tools makes the Audio Control D-11 a valuable tool for enhancing and perfecting audio performance in any setting.Why buy from us?HTF Audio takes pride in the work we put into every unit to get it ready to be sold and shipped to its new owner to enjoy. Unlike other ebay sellers, HTF Audio specializes in audio/stereo gear, meaning we extensively test every audio related item we list. We don’t just power test our units and then write “tested, works” in the title (like a lot of other sellers we see). We always include a video unique to every item for you to see for yourself. Apart from that we put work into every unit, specializing in cosmetics which ranges from cleaning pots/switches to polishing the windows on receivers and conditioning the wood on wooden cases and speakers. Because we only sell audio/stereo gear you can rest assured that we have experience in packaging and shipping your item to ensure it arrives in the same condition as pictured. We understand there are other stereo-only ebay sellers but when you buy audio gear we always recommend you buy from a trusted stereo-only seller like us. Cosmetic details: In good cosmetic condition, has some scratches/marks, see pictures for details Unit has been cleaned all around to remove as many blemishes and dirt as possible Items included: Only comes with what you see in the pictures which includes the unit itself only Additional details: Unit has been tested and works great apart from the meter which we couldn’t get to moveThe faders have been cleaned with Deoxit and relubricated to remove crackle that was there beforeSee video above for demo Contact: Message us with any questions and check out and follow our eBay store for more similar items for sale Our Store Policies Please read and review the policies that may or may not be applicable to your purchase in order to prevent any unsatisfaction and issues that may arise. We do our best to try to make sure you are happy with your purchase and customer service is upon one of our biggest priorities so please reach out with any questions/concerns. Photo Disclaimer Upon purchasing this item you accept and agree that you have reviewed all of the pictures and understand that what you see is what you are getting. This also means that despite what we wrote in the description if you see (or don’t see) something in the pictures we didn’t mention or we missed, the picture should speak for itself at that point. If it is not in the pictures and/or it is not stated in the listing as being included then it is not being included with your purchase, this includes any cables, accessories, original box or anything of that nature. If you have any questions please message us and we will be happy to respond to your questions/concerns. As is Policy Please note that any items sold “as is” are final sale regardless of whether they work or not. To avoid confusion, this does not specifically mean that this item is an “as is” item unless stated in the description above Return Policy For new items, returns are subject to an up to 50% refund deduction to make up for lost profits in market value for the item if the item is opened by you and/or there are missing components/accessories upon receipt back to us. Any returned items that are returned damaged or have been tampered with in any way are subject to an up to 100% refund deduction as well per eBay’s policies. Please also note that any items that have any “tamper” stickers should not be removed and should be returned with them intact as removing them will result in a refund deduction as well.

This vintage Audio Control C-22 EQ Octave Equalizer Stereo 10 Band Subsonic Filter is a must-have for any audiophile. It is designed to enhance the sound of your music by reducing unwanted frequencies and boosting the desired ones. The equalizer has 10 bands that allow you to adjust the sound of your music to your liking. The Audio Control C-22 is a high-quality equalizer that is perfect for any home audio setup. It is made by a trusted brand and has a model number of C-22. This equalizer is perfect for those who want to enhance their music listening experience.

Works great! Sounds great! In good cosmetic shape

Tested. Works Great! - Clean Audio Control Model D-10 (D-520) Octave Equalizer with Subsonic Filter Ships with plenty of bubble wrap in a sturdy box FAST SAME DAY SHIPPING

Offered is an AudioControl Model D-10 10 Octave Equalizer with Subsonic Filter, Made in USA, unit SN F12556. Condition is used - unit is clean and fully functional. Wood sides are nice, no visible scratches, the four rubber feet on the bottom have shifted some but are still stuck to the unit. From a family member so I know the history - smoke free home, stored for a while in a closet in the house that was climate controlled. I have been using this in a system for about a year, everything works as it should - see video. I do like the bands split out between bass, midrange and treble right where you can see them...As a precaution, before using, I did clean the controls with DeoxIT Fader F5. There is no cracking when adjusting the sliders Just a note - this does not have a power on/off button so once you plug it in it is on. It would be best used with another vintage component that has a rear switched outlet or a master power conditioner that turns everything on/off at the same time. Vintage EQ from AudioControl, Made in the USA! Please view all images as this is the exact item you will receive. MY TERMS: Buyer to pay for postage via UPS Ground, USPS Ground Advantage, or FedEx Ground. Shipping is strictly based on the cubic weight of the box (4lbs. in a 16x8x5 box). Please use the eBay shipping calculator to see what the shipping will be - what ever it is - it is actual only. Tracking will populate in your Purchased Items list once I print the shipping label. Payment appreciated within 48 hours of auction end. I ship every weekday, however, items purchased/won on a Friday - Sunday will be mailed the following Monday. Bid with confidence, I have been an eBay user for over 20 years as both a buyer and seller, over 1000 positive feedback - never a problem! Shipping to a U.S.A. address only, sorry but I do not ship to Canada, APO/FPO, or U.S. Territory. I DO NOT ship to “forwarding” services that circumvent the eBay Global Shipping Program. If your address is non-residential and appears to be a forwarding service, I will cancel the order and issue a refund. If you have any questions, please ask prior to bidding/buying. Thank you for checking out my item! No returns, all sales are final! 4C5OSS

Enhance your audio experience with the AudioControl Model D-10 Octave Equalizer featuring analog technology. This high-quality equalizer has 2 stereo L/R RCA audio inputs and outputs, with a total of 2 channels and 2 inputs and outputs. The sleek black design will complement any home audio system. This AudioControl equalizer is perfect for adjusting the sound of your music or movies. It was manufactured in the United States and comes in its original box. Get ready to elevate your audio game with the AudioControl Model D-10 Octave Equalizer.box is torn up but the item was stored in plastic and is in excellent condition. thanks for looking.

Tested. Works Great! - Clean Audio Control Model D-10 (D-520) Octave Equalizer with Subsonic Filter Ships with plenty of bubble wrap in a sturdy box FREE SAME DAY SHIPPING

The unit has been tested and works. Includes the original manual. Gently used. See photos. Priced to sell. Will not last. Nice piece. Enhance the sound quality of your home audio system with the AudioControl Octave Stereo Equalizer. This unit has 4 stereo RCA outputs and 4 stereo RCA inputs allowing you to connect multiple devices. The analog features of this equalizer offer a unique sound experience for audiophiles. The AudioControl Octave is a high-quality unit made in the United States with a maximum power of 120W. Its sleek black design fits seamlessly into any home audio setup. Get the most out of your favorite music and movies with this top-notch equalizer.

AUDIO CONTROL MODEL D-11 OCTAVE EQUALIZER ANALYZER WITH SUBSONIC FILTER, ORIGINAL MICROPHONE, 3 SETS OF ORIGINAL RCA PATCH CORDS AND 2 EXTRAS. MEASURES 14 X 6 X 3 1/2 WITH SOLID OAK WOOD SIDES. NO MANUALS BUT THE USER MANUAL IS AVAILABLE ON HI-FI ENGINEs WEBSITE. EXCELLENT CONDITION WITH ONLY THE SLIGHTEST COSMETIC BLEMISHES.

Vintage AudioControl Octave Equalizer Analyzer with Subsonic Filter Model D-11.

Audio Control Octave Equalizer With Subsonic Filter Model D-10 Parts or Repair. Item is untested (May work or may not) ** for parts or repair only because it is “untested” Condition: preowned, please see pictures of the actual item. “Untested” Comes from a Smoke-Free & Pet-Free Home. Shipped with USPS priority Class Mail. Item will be packed securely. All item’s over $100 will need to be signed for and insured. We combine shipping on multiple items, and usually ship within 1 business day / 7 days a week. Any question please feel free to message us thank you and stay safe ! We accept free returns within 30 days. All tems must be returned back in the exact same condition as we shipped it out, no exceptions. Buyer pays shipping for re turns and refund of item price will be refunded once we receive the item back. Electronics will have a 14 day return policy. If the item is brand new sealed, it must be returned as brand new and sealed no exceptions. If the item is being sold as parts, returns are not allowed. Thank you