PaymentRest assured that our store offers a variety of payment methods.Please pay within 5 days after auction is finished. About UsWe are located in Japan.For electrical products check the manufacturer and product and convert to the voltage of each country.We plan to ship by FedEx or DHL.Please contact us as the shipping fee can be changed in some cases. Its our pleasure to make you happy by proposing our recommend item.If you have any questions or request about items please feel free to ask us. International Buyers - Please Note:-Import duties taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.-Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying.-These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.-We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior.>

PaymentRest assured that our store offers a variety of payment methods.Please pay within 5 days after auction is finished. About UsWe are located in Japan.For electrical products check the manufacturer and product and convert to the voltage of each country.We plan to ship by FedEx or DHL.Please contact us as the shipping fee can be changed in some cases. Its our pleasure to make you happy by proposing our recommend item.If you have any questions or request about items please feel free to ask us. International Buyers - Please Note:-Import duties taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.-Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying.-These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.-We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior.>

Selling a vintage 1979 Sumo The Power Differential Power Amplifier in its original found condition. Rare Estate Find. The estate was filled with high quality electronics and unique collectibles.The amplifier powers on and no further testing was completed. I do not have the proper equipment to test the amplifier. The original owner said it has not been used lately but worked properly the last time used. Its the most powerful amplifier hes ever owned. Can be rack mounted. A copy of the owners manual is included.Since I cound not properly test selling in as is condition with no returns. What you see in the pictures is exactly what you will receive. I did not clean or polish and will clean up nicely, if desired. Check my listings for many unique hard to find collectibles.SpecificationsPower output: 400 watts per channel into 8? (stereo)Frequency response: 20Hz to 20kHzTotal harmonic distortion: 0.5%Damping factor: 300Input sensitivity: 1.35VSignal to noise ratio: 100dBSpeaker load impedance: 2? to 16?Weight: 86 poundsYear: 1979Shipping Terms: Insurance and a tracking number will be provided. Free Local Pickup. The amplifier is extremely heavy and will be safely packed for shipping. Contact me with any questions or comments. Seller Terms: Buyer must contact seller within 2 days and payment should be received otherwise the seller may either sell or relist the item. Any payment not received within 3 days of the end of the auction may result in the notification to Ebay under their non-paying bidder policy. On Aug-31-24 at 12:27:17 PDT, seller added the following information: I was able to test the amplifier and it produces sound (see video). No other test was completed and may require cleaning or servicing for optimal performance. Thanks for your interest.

Introducing the SUMO THEOREM 2 Stereo Power Processor, a rare find for audiophiles and home entertainment enthusiasts alike. This high-quality D/A processor boasts a sleek black design and features banana speaker jacks for easy connectivity to your sound system. With two channels and two inputs, this processor is perfect for those looking to enhance their home audio experience. The Sumo Theory 2 offers a range of features, including an analog signal path, a powerful 2x 70W output, and a compact design that makes it easy to fit into any entertainment center. Whether you're a music lover or a movie buff, this processor is sure to impress. Get your hands on the SUMO THEOREM 2 Stereo Power Processor today and elevate your home audio experience to the next level!

MADE IN USA. Very nice example of Sumos Polaris power amp, some documents say 120 WPC @ 8 ohms, others say 100. Plenty of clean power regardless. Dual mono, MOSFET design. I have been very pleased with this amp, original MSRP back in the day $750. Sumo Athena available in a separate listing. Sorry, no box, manual or rack handles. Ships to the CONUS ONLY.

This is a Sumo Andromeda Amplifier. Here is the information. Passed the dim bulb test, no shorts. Photo shows DC at speaker out. When hooked up to a pair of 8 ohm speakers there is a big turn on thump. Left channel about 5 to 8 seconds pulses the cone out then slowly pulls back in. Nothing on the right. There are photos of the output transistors and inside. Some information around on these amps, but I didnt see a lot. Figure about 38 pounds shipping. Shipping quote is for the continental US, ONLY. Thanks for looking,

The Sumo Nine Power Amplifier is a used high-end stereo amplifier that offers exceptional sound quality. This amplifier is a perfect addition to a home audio system and features stereo RCA audio inputs, with a two-channel output that delivers powerful and clear sound. Built by Sumo, a company that has been producing high-quality audio equipment for over three decades, this amplifier is a testament to their expertise. The Sumo Nine Power Amplifier offers a sleek design that will complement any home audio setup. If you are looking for a reliable, powerful, and great-sounding amplifier, the Sumo Nine is an excellent choice. Power output: 60 watts per channel into 8 (stereo) Frequency response: 2Hz to 120kHz Total harmonic distortion: 0.25% Damping factor: 120 Input sensitivity: 1V Signal to noise ratio: 100dB Dimensions: 480 x 220 x 180mm Weight: 16kg

MADE IN USA. 100 WPC, Class AB, I have another that I use daily (first gen). Bought this one on a whim, untested, lost. Great look to this amp, with the rack handles. My loss might be your gain. One channel out. I really like Sumo products, have owned many, usually they are super reliable. If you are pressed for space, you can remove the rack handles for a really compact little powerhouse. Use the working channel for a subwoofer amp! Original MSRP was $800. No box or manual to include, but I pack well for shipping. 19x11.25x5.5 (including feet), 23 lbs. Ships to the CONUS ONLY via USPS or FedEx Ground.

Non Working for part only.Power amplifier power up with loud buzzing/humming sound. sold for parts or not working: An item that does not function as intended and is not fully operational. This includes items that are defective in ways that render them difficult to use, items that require service or repair, or items missing essential components. Please see the detailed photos for more on condition. Guaranteed to be as described. A picture is worth a thousand words, and I always picture the actual item(s) for sale, so please look carefully at the accompanying photo(s). Sold as AS IS no return, no refund. What you see in the photos is what you get. Shipping within the United States Only. No Shipping to Hawaii, Alaska, Puerto Rico!

MADE IN USA. 100 WPC, Class AB, I have another that I use daily (first gen). Bought this one on a whim, untested, lost. Great look to this amp, with the rack handles. My loss might be your gain. One channel out. I really like Sumo products, have owned many, usually they are super reliable. If you are pressed for space, you can remove the rack handles for a really compact little powerhouse. Use the working channel for a subwoofer amp! Original MSRP was $800. No box or manual to include, but I pack well for shipping. 19x11.25x5.5 (including feet), 23 lbs. Ships to the CONUS ONLY via USPS or FedEx Ground.

SUMO The GOLD amplifier. (I think, been too long, I remember it is supposed to be Class A).Might be the same as The POWER. Aluminum covers, TOP, BOTTOM, BACK and FRONT sub panel. NO FACE PLATESalvaged from an amp that I never powered up.

SUMO The GOLD amplifier. (I think, been too long, I rember it is supposed to be Class A)Right side amplifier assembly.Salvaged from an amp that I never powered up.Condition unknown. Includes top board but I will pack that separate for shipping protection (in the same box).

SUMO The GOLD amplifier. (I think, been here too long, I remember it is supposed to be class A)Right side amplifier assembly.Salvaged from an amp that I never powered up.Condition unknown. Includes top board but I will pack that separate for shipping protection (in the same box).

SUMO The GOLD amplifier. (I think, been too long, I remember it is supposed to be Class A).Power TransformerSalvaged from an amp that I never powered up.120V

SUMO The GOLD amplifier. (I think, been too long, I remember it is supposed to be Class A)Input board assemblySalvaged from an amp that I never powered up.Condition unknown.

SUMO The GOLD amplifier. (I think, been too long, I remember it is supposed to be Class A).Power supply board assembly.Salvaged from an amp that I never powered up.Condition unknown.It LOOKS like there is a missing transistor, I never found a schematic to confirm that.

PaymentRest assured that our store offers a variety of payment methods.Please pay within 5 days after auction is finished. About UsWe are located in Japan.For electrical products check the manufacturer and product and convert to the voltage of each country.We plan to ship by FedEx or DHL.Please contact us as the shipping fee can be changed in some cases. Its our pleasure to make you happy by proposing our recommend item.If you have any questions or request about items please feel free to ask us. International Buyers - Please Note:-Import duties taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.-Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying.-These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.-We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior.>

PaymentRest assured that our store offers a variety of payment methods.Please pay within 5 days after auction is finished. About UsWe are located in Japan.For electrical products check the manufacturer and product and convert to the voltage of each country.We plan to ship by FedEx or DHL.Please contact us as the shipping fee can be changed in some cases. Its our pleasure to make you happy by proposing our recommend item.If you have any questions or request about items please feel free to ask us. International Buyers - Please Note:-Import duties taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.-Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying.-These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.-We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior.>

Used, some small cosmetic marks

DescriptionAuthenticity: 100% AUTHENTIC! If you have any question about the condition, accessories, or anything about the product,Please feel free to message us. We are glad to answer all your concerns. ShippingDHL, Fedex Fastshipping3-10 business days after shipment(Tracking number + Insurance.)PaymentPlease give me the payment within 3days from the date of bid.About UsWe sell our items on other websites and in our retail stores in Japan at the same time.If the item was sold out before your purchase, your order will be cancelled and a full refund will be issued immediately. International Buyers - Please Note:Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior. Thank you.

PaymentRest assured that our store offers a variety of payment methods.Please pay within 5 days after auction is finished. About UsWe are located in Japan.For electrical products check the manufacturer and product and convert to the voltage of each country.We plan to ship by FedEx or DHL.Please contact us as the shipping fee can be changed in some cases. Its our pleasure to make you happy by proposing our recommend item.If you have any questions or request about items please feel free to ask us. International Buyers - Please Note:-Import duties taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.-Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying.-These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.-We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior.>

SUMO POLARIS MOSFET POWER AMPLIFIER CLASS AB! Excellent condition! 100 watts per channel! SUMO POLARIS POWER AMP, WORKS GREAT, SOME VERY MINOR SCUFFS (SEE PICS FOR CONDITION) SHIPPING via UPS. WILL BE SAFELY PACKAGED. NO RETURNS AS IS DUE TO AGE. ONLY ASKING $400 OR BEST OFFER! ***Sumo Polaris class AB power amplifier banishes transconductance error completely with exclusive power MOSFET correction circuitry.Using an independent closed loop servo system directly at the amplifier output, Polaris dynamically corrects the error, reducing distortion and contributing to the amplifiers high frequency smoothness.Specifications Power Output: 100 Watts Per Channel Into 8? (Stereo)Frequency Response: 20Hz To 20kHzTotal Harmonic Distortion: 0.05%Damping Factor: 525Input Sensitivity: 1.27VSignal To Noise Ratio: 103dBDimensions: 480 X 130 X 220mmWeight: 35 lbs

SUMO Andromeda II Power AmplifierYou are bidding on SUMO Andromeda II Power Amplifier. It’s working great. This is new, open box, looks like it was store demo. Comes with original box and cable. Missing manual. Please do research about the item and do research what you need to use the item. Please look at the pictures before bidding, you will get what you see in the pictures.POLICY: SELLING AS IS, NO RETURNWe ask all buyers to email us before opening a EBAY CLAIM CASEI WILL NOT ACCEPT THE ITEM BACK, IF YOU CHANGE YOUR MIND OR DO NOT LIKE THE ITEM OR DID NOT READ THE DESCRIPTION AND LOOKED AT THE PICTURES.We ask all the buyers before leaving a negative or neutral, please email us with a problem first and we will do our best to make you happy again.We care about our buyers and we only want to see them happy.WE WANT TO SEE ALL OUR BUYERS HAPPY PAYMENT: Payment must be received in 2 days, if you do not pay with in 2 days, EBAY claim will be open. LOCAL FLORIDA PICK UP ALWAYS WELCOME BY APPOINTMENT ONLY & CASH ONLY Notify us BEFORE making payment & we will send you a revised invoice without shipping charges. Allow 24hrs notice before coming by to pick up your item Available days for Pickup: M-F 12 NOON-2:30PM We are located in the CORAL SPRINGS/COCONUT CREEK/MARGATE AREA.ALL PICK UP WILL BE DONE IN PUBLIC PLACE. ALL FLORIDA BUYER: ALL FL STATE BUYERS MUST PAY 7% SALES TAX, THIS IS A LAW, IF BUYER REFUSE TO PAY SALES TAX, THAN TRANSACTION WILL BE CANCEL AND BUYER WILL BE REPORTED TO EBAY. SHIPPING: Boxing and shipping via FedEx ground to addresses in the USA continental ONLY and shipping rate is rated to all 48 state, please do not ask for the lower shipping rate. Shipping is $100 (NONE REFUNDABLE ) FEDEX DO NOT DELIVER TO PO.BOX, MUST HAVE A VALID ADDRESS.ALASKA, HAWAII & PR BUYERS must ask for the shipping rate before bidding. ATTENTION: INTERNATIONAL BIDDERSALL INTERNATIONAL BUYERS MUST USE EBAY GLOBAL SHIPPING PROGRAM, I HAVE NOTHING TO DO WITH EBAY GLOBAL SHIPPING RATE, THIS BETWEEN BUYER AND EBAY, IF YOU DO NOT LIKE THE EBAY GLOBAL SHIPPING COST THAN PLEASE DO NOT BUY THE ITEM.