At auction today, an Optimus 31-2025 Stereo Eq with a Spectrum Display. You cansee your frequencies as well as hear them with this model.Cosmetically, super nice and clean and looks like new. When tested all worked as it shouldand sounded great. Unit comes with the in and out RCA patch cords.See pictures.Great addition to any system. As with all my used and vintage pieces, I offer no guaranteeor warranty of future performance. All items are sold as is with no returns.All will be well packed and shipped within 4 days after payment has been received.Thanks for looking.

Vollfunktionsfähig, inkl. allen Chinch-Kabeln. Kein Rückgaberecht, keine Gewährleistung!

Pioneer GR-555 Stereo Graphic Equalizer Does not include the manual or any original packaging. Unit shows some wear and scratches, but overall is in good condition. The face has some scuff marks, but is otherwise clean and functional. All buttons and dials are clean and work as intended. All the illumination is working. The unit has been tested and works perfectly. Model #: GR-555 Serial #: NH3913678X Electronics Disclaimer: All electronics are marked with tamper proof security seals and serial numbers are recorded to prevent fraud. We strive to take excellent pictures and describe items as thoroughly and accurately as possible, but please dont hesitate to ask any questions that you may have. Thanks for looking! SKU#: GC-5575

This vintage beauty has been fully tested and works great! Could use a good cleaning but cosmetically in very nice condition. Will be packaged carefully to avoid damage during shipment. Pictures are of the actual item you will receive! I ship fast! No international shipping. Please don't hesitate to ask if you have any questions. Have a great day!

Designer: TEACDescription: VTG TEAC Silver EQA-10 Color Spectrum Display 10 Band Stereo Graphic Equalizer WorksFrom my personal collection. Beautiful light show, especially at night, spectrum display, a rainbow of lights. Model EQA-10Serial Number 30804161120V AC60Hz6 WRCA Audio OutputMade In TaiwanManufactured Years of manufacture: 1983 - 1986Not modified, original. Original electric cord and cord wrap. From the users manual: The TEAC Model EQA-10 is a stereo ten-band graphic equalizer with a ten-band audio frequency spectrum analyzer incorporated into the front panel. The EQA-10 has front panel switches that permit the user to choose one of the two inputsources or tape, an EQ in/out switch, and a pre/post EQ switch that allows auditioning ofequalized or non-equalized signals without disturbing a tape recording in process. *No other connection cords included, this listing is for the TEAC EQA10 Equalizer only, all other components shown in pictures are for illustrating that the equalizer works. Measurements: See pictures and users manual pictures for mm. Weighs 5lbs 3 oz Condition: Vintage preloved excellent working order from seller’s personal collection, see pictures, video and listing description as part of condition. Note: TEAC is Japanese manufacturer of hi-fi and studio equipment. Founded in 1953. The studio equipment is sold under the Tascam brand, the high-end equipment under the Esoteric brand. Still in business, In 2013, Gibson bought a majority stake in TEAC. Please see pictures as part of description and condition. Packed with care, ships with love in 1 business day. We offer combined shipping. If you need special shipping, please message us prior to purchase and we can help meet your shipping needs. All items in our shop are stored in a climate controlled environment. #TEAC #vintagestereo #vintageequalizer #TEACSilver #EQA10 #spectrumdisplay #10bandstereo #graphicequalizer #colorspectrumdispaly

Vollfunktionsfähig, inkl. allen Chinch-Kabeln. Kein Rückgaberecht, keine Gewährleistung!

.See photos.

For sale is an Optimus 31-2025 Equalizer. It is used but in good working condition. Bottom has dried glue/epoxy from previous owner. Sold as shown. Before purchasing:Review pictures thoroughly for condition before purchasing. If you need more pictures to be comfortable with your purchase, I can happily oblige!Review all shipping services offered to find the best option for your needs.Message me with any questions/concerns/comments, Id be happy to answer! Thank you, and have a real good day!

This vintage beauty has been fully tested and works great! Could use a good cleaning but cosmetically in very nice condition. Will be packaged carefully to avoid damage during shipment. Pictures are of the actual item you will receive! I ship fast! No international shipping. Please don't hesitate to ask if you have any questions. Have a great day!

49Experience precise audio tuning with the Optimus 31-2030 Vintage 10 Band Stereo Graphic Equalizer. This classic piece of audio equipment allows for a tailored sound experience with its 10-band equalizer spectrum display, ensuring each frequency is adjusted to perfection. With two channels and corresponding inputs and outputs, the Optimus 31-2030 is designed for easy integration into your existing setup. The sleek black finish not only adds a touch of vintage charm but also complements any professional or home audio configuration.

FAST FREE SHIPPING! I will ship within 24 hours of receiving funds! Item is tested and in good working condition. Item is used and shows signs of use, please examine all pictures closely to understand the condition of the item. Only what is in pictures is included in the sale. Only ship to lower 48 states and no PO Boxes! Any questions please ask, thank you!

Vintage equalizer for your system - the RCA 31-5001! This equalizer features ten bands (31Hz, 62Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, and 16kHz) and produces clear, powerful sound. Its perfect for fine-tuning your audio to exactly how you want. It even has a slim design so you can easily fit it with the rest of your gear. Ive personally used this for a few years... Time to move on. Works perfect, does have a small dent on the top. Thanks for looking!

Tested. Works. This item is in good physical Preowned condition overall with wear flaws and blemishes consistent with normal use and age. Please see pictures closely for details. Thank you for looking and we wish you all a happy holiday season! Please visit our store to see all the other unique items we have available and we look forward to the opportunity to serve. Lucky????Finds LF4310

The Silver Face Teac EQA-20 is a 10-band stereo graphic equalizer with a spectrum display. It is designed for universal compatibility and is ideal for enhancing sound quality in home stereo systems. The sleek silver color and classic Teac brand make it a stylish addition to any audio setup. In excellent operational and cosmetic condition. Ships to lower 48 States only

Vintage Optimus 10 Band Stereo Graphic Equalizer EQ Spectrum Display 31-2025In good used condition, some scratches and scuffs. Working, see photos. I will ship this item out via UPS Ground with a tracking number for confirmationWill ship in box with plenty of padding.I handle shipping every day of the week, watch for shipping updates! Check my feedback comments, I will protect your purchase for shipping. Please feel free to ask any questions you may have.I will often reply quickly, unless foraging for mushrooms :) Thanks

The Silver Face Teac EQA-20 is a 10-band stereo graphic equalizer with a spectrum display. It is designed for universal compatibility and is ideal for enhancing sound quality in home stereo systems. The sleek silver color and classic Teac brand make it a stylish addition to any audio setup. In excellent operational and cosmetic condition. Ships to lower 38 States only

Used good. Some paint missing. Front panel looks good

Please Read Before Making a Purchase This listing includes only the items shown in the pictures—nothing else is included. The item has been tested. It turns on. Please zoom in on the pictures for a detailed view of the item's cosmetic condition. While I carefully examine each item, it’s possible I may unintentionally miss a minor imperfection. You will receive exactly what is shown in the pictures. If you have any questions, feel free to reach out before purchasing. Important Notes: My liability for any product defects is limited to the purchase price plus shipping. I am not responsible for the installation, training, or operation of any item I sell. Thank you for your business! Standard shipping is via USPS or FedEx, at my discretion.

TEAC EQA-10 Stereo Graphic Equalizer with Spectrum Display Black Excellent condition for age. Please see photos for accurate condition. *Condition items to note and also shown in photos*Minor scuffing on unit** ELECTRONIC DISCLAIMER ** While items are tested prior to being listed, items can sometimes malfunction due to shipping or storage. Seller offers full refunds should any electronic arrive not in working order. | LTOWNSALES | Buy with confidence! < < Please see my shop for more items! > > This will ship quickly and packaged with care. Please contact us for any questions. Thank you for looking. *Disclaimer: Seller has done their best to accurately depict condition and all potential flaws. Please review photos carefully before deciding to bid. Thank you!

SPL Stereo Q - Model 2048 - 5-Band Stereo Equalizer - Cord and Manual Included Product Description (adapted from product manual): The Stereo Q is a parametric 5-band equalizer which excels particularly in two ways:It is the first stereo equalizer in its classThe serial-filter design based on the legendary QURE equalizer filter guarantees the high tonal qualities for which SPL products have become renowned for.The continuously increasing number of stereo equipment such as stress keyboards, samplers, or guitar amplifiers together with the broad spectrum of sundry stereo effect gear reinforces the need for utilization of stereo equalizers. The processing of stereo tracks in the consoles subgroups or master tracks if facilitated and improved by using a stereo EQ. All control functions for both channels can be adjusted with one control - a large time saver. It is extremely important that both channels are assured of being adjusted equally. Differing adjustments could cause unstable correlations of the stereo program, the correction of which is very complicated. The close adjustment tolerances of the Stereo Q reliably avoid this problem, which makes it an extremely suitable unit for inclusion in a 5.1 surround studio where the need for coherent twin matching of both channels is paramount. The filter circuits of the stereo Q are serially constructed which prevents mutual influencing of the filters. All components used are of high and selected quality. Additionally, the design of a clearly arranged front panel with comprehensive legible scaling was given high priority; large handy buttons with detented potentiometers guarantee a fast and assured adjustment. Product Features (adapated from product manual):Three fully parametric bands in accordance with the mutually effective proportional Q principle (Boost/Cut +/- 15 dB, Q 0.5 to 5; LOW band 10-250 Hz, MID band: 140 Hz - 3.5 kHz, HIGH band: 940 Hz to 24 kHzSub-bass EQ (Cut/Boost +/- 14 dB up to 200 Hz) with coil/capacitor filter network that produces a penetrating and lucid deep tone spectrum.Air-EQ: the selected coil/capacitor-filter network provides a silky and airy presence - especially in digital recording.The 3D-Enhancer intensifies the spatial impression of the stereo signal without affecting the low frequency tonal components.Optional provision of input and output transformers from Lundahl: balancing through transformer stages. The galvanic separation ensures high operational safety. Tonal advantages are offered by the transformer coil, which minimizes odd harmonic distortion and provides a silk top end.Disturbances which could have an effect over the ground-runs are minimized by the separation of the audio-ground from that of the remaining apparatus. The leads substantially to a higher and cleaner tonal quality.Power Supply: The toroidal transformer forms the basis for a clean power supply throughout the circuitry. Extra Information:Product manual is includedProduct has been tested and is working**PRODUCT IS BEING SOLD AS IS + SELLER DOES NOT ACCEPT RETURNS!**

Minor imperfections but works great. See photos

Vollfunktionsfähig, inkl. allen Chinch-Kabeln. Kein Rückgaberecht, keine Gewährleistung!

WORKS GREAT..JUST RETIRED THIS IS THE EXACT ITEM YOU WILL RECEIVE NO BOX INSTRUCTIONS ONLINE69

Enhance your audio experience with the Kenwood GE 7030 Stereo Graphic Equalizer. This powerful device boasts a spectrum analyzer and an awesome display that will make you want to tune in forever. With 2 channels and 2 inputs, this equalizer is perfect for any music lover who wants to take their audio to the next level. The black color and analog features of this Kenwood GE 7030 make it a great addition to any home audio setup. Plus, the stereo L/R RCA audio outputs ensure that you get the best sound quality possible. Whether youre a DJ or just a music enthusiast, this equalizer is a must-have for your collection. This unit is in excellent condition with no concerning cosmetic problems. See pictures.