Product descriptionIntegrated amplifier equipped with a newly developed Hyper ?-X balance circuit. amplifierIn order to remove the distortion caused by the asymmetry of the elements, we have developed and adopted a Hyper ?-X balance circuit based on a unique technology called X balance amplifier.In addition to the conventional balance circuit, this circuit introduces a new high CMRR type constant current circuit in the first stage of the power amplifier and preamplifier, which determines the dynamic characteristics of the amplifier, achieving a theoretical 140 dB improvement in CMRR. . This suppresses current variations due to DC offset caused by element asymmetry, and suppresses dynamic noise generated within the circuit.In addition, all stages have a fair balance that allows music signal transmission and amplification at the same time, and the amplification circuit and ground circuit are completely separated to eliminate the negative effects of the speakers back electromotive current and external noise.Furthermore, dedicated amplifiers are placed on the + and - sides of the output, respectively, and a push-pull method is adopted in which a total of four amplifiers drive the speakers under the same conditions.The power stage is equipped with NM-LAPT, a device exclusively for audio, and has achieved excellent high frequency characteristics and current limit values.All stages from input to output are configured as DC amplifiers.Furthermore, we have adopted a new diamond differential circuit that can take out the - side output without phase inversion, increasing responsiveness to instantaneous signals and suppressing the occurrence of TIM distortion, improving the performance of the DC amplifier.In addition, in order to make the circuit wide-range and high-speed, the first-stage FET is connected in cascade, eliminating the deterioration in sound quality that occurs when connecting external equipment with different impedances.amplifier speaker systemIn order to prevent the power supply from becoming unbalanced, the power supply section uses a closed-loop configuration in which the power supply section is independent from the ground, and the power stage and voltage amplification stage are completely separated to supply a stable large current. It also protects the signal from the natural vibrations of the power supply and noise generated during charging and discharging.In addition, newly developed parts such as a large power transformer with a total weight of 13 kg and an elliptical electrolytic capacitor are used to minimize leakage flux and contain high-density filler in a quadruple-structured shield case.In order to prevent vibrations generated from the power supply system and signal system, reinforced twin monaural construction is adopted.First, a large transformer and electrolytic capacitor are installed in the center, and the power unit, which consists of signal systems such as power transistors and heat sinks, is placed symmetrically to ensure optimal weight balance.In addition, we have introduced a unique technology called isolated mechanical feedback, which uses pure copper isolation parts between the master volume and the chassis, between the power transistor and the heatsink, and as the mounting base for the electrolytic capacitor. By taking advantage of its characteristics of high internal loss and excellent vibration absorption ability, it blocks the vibration transmission path.Furthermore, in order to isolate between the insulator and the bottom plate, and between the bonnet and the chassis, we use Teflon tape and Teflon sheet, which have extremely stable molecular structures, to suppress deterioration of sound quality due to vibration and resonance.Top-quality parts for high-quality sound reproduction, a newly developed pure copper oval insulator, a bonnet coated with copper powder paint, a copper-plated rear panel, a volume knob machined from solid aluminum, and other details that are anti-vibration, low impedance, and non-magnetic. We are trying toIn order to minimize deterioration in sound quality, the signal transmission circuit has been simplified and tone control has been eliminated.It is also equipped with a power amplifier direct input that allows you to directly input music signals from digital sources into the power amplifier section, as well as a balanced input terminal.A 6-unit detent volume is used for the volume.Equipped with source power direct, rec selector, and AC outlet.?Main specificationsModel Integrated AmplifierEffective output (10Hz to 20kHz,Both channels operate simultaneously) 190W+190W(6?)160W+160W(8?)Total harmonic distortion rate (at effective output) 0.003% or less (8?)Cross modulation distortion rate 0.003% or less (8?)Damping factor 150(8?)Frequency characteristics (1W) DC ~ 300kHz +0 -3dBInput sensitivity/impedance (1kHz) 1V/5k?SN ratio (A network) 120dB or moreDynamic power 580W (2?)390W(4?)310W(6?)TIM distortion (SAWTOOTH) below measurement limit valueSlew rate 200V/?secRise time 0.5?secInput sensitivity/impedance (1kHz) Phono MM:2.5mV/47k?Phono MC:300?V/100?CD, Tuner, Line, Tape/DAT1, 2:150mV/20k?Phono maximum allowable input MM(THD 0.01%):210mVMC(THD 0.1%):21mVFrequency characteristics (1W) Phono MM: 20Hz to 20kHz±0.2dBCD, Tuner, Line, Tape/DAT1, 2:DC~300kHz+0 -3dBSN ratio (A network) Phono MM:90dB or morePhono MC:75dB or moreCD, TUner, Line, Tape/DAT1, 2:110dB or moreSubsonic filter 16Hz(-3dB), 6dB/octLoudness +4dB(50Hz)+3dB(10kHz)Rated power consumption 400WExternal dimensions Width 466x Height 163x Depth 452mmWeight 33.0kg?The product is in good condition and has some signs of use, but there are no noticeable scratches or stains.For remote delivery areas, additional fees will be charged. Import duties,taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. 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. -US and International government regulations prohibit such behavior.

Model number: AU-?907XRmaximum output190W+190W(6?)S/N ratio120dB or moresensitivity1V/5k?Play frequencyDC~300kHz +0 -3dBPower consumption (W)400WFeatures/NotesEquipped with HYPER-X balance circuitFor remote delivery areas, additional fees will be charged. Import duties,taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. 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. -US and International government regulations prohibit such behavior.

Model number: AU-?907XRRated output160W+160W(8?)impedance4-16? compatibleS/N ratio120dB or morePower consumption (W)400WFeatures/NotesIntegrated amplifier equipped with Hyper ?-X balance circuit2023.2?Maintenance completed at repair centerRight channel output transistor, drive transistor, semi-fixed volume, speaker relay, headphone relay, output transistor - insulation mica board, foot felt replacementDisassembling each switch and cleaning contacts/Repairing deteriorated solder parts on each board/DC offset and bias current adjustmentFor remote delivery areas, additional fees will be charged. Import duties,taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. 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. -US and International government regulations prohibit such behavior.

Model number: AU-?907XRFeatures/NotesEffective output: 190W+190W(6?)/160W+160W(8?)Equipped with a HYPER ?-X balance circuit that reduces noise within the circuit and provides stable playback of even minute level signals.Input terminal: PHONO(MM,MC)/CD/TUNER/LINE/TAPE/DAT-1/2For remote delivery areas, additional fees will be charged. Import duties,taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. 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. -US and International government regulations prohibit such behavior.

Description If you have any question or concern, please do not hesitate to contact me : ) ShippingStandard Shipping (FedEx, Japan Post)We usually ship out your order within 5-7 working days after receiving your payment.The package will arrive about 3 - 10 days after shipment.Pack carefully : ) International Buyers - Please Note?Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. ?Please check with your country’s 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” - US and International government regulations prohibit such behavior.

DescriptionAll my products are 100% Authentic.Please feel free to contact us if you have any question. Shipping We ship using FedEx, DHL and Japan Post. PaymentWe usually ship within 5?10 business days of receiving cleared payment. International Buyers - Please Note: Import duties, taxes and charges are not included in the item price or shipping charges.These charges are the buyer’s responsibility.Please check with your country’s 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. I do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior.

Description of itemThank you for visiting! Our shop is 100% Authentic item. If you have any questions, please be free to ask us.  Have a great shopping on ebay! Paymentwe accept payment only through ebay Managed Payment. Shipping-Japan Post: 5-20 days to arrive -DHL: 5-10 days to arrival *We will ship the item by Japan post or DHL.  If you need expedited shipping, please let me know. I will ask you about extra payment.  Depending on the size and weight after packing the items, The shipping method may change depending on your location. **If you live in a remote area, We might ask extra charge for intenrational shipping. Please contact us for additional charges Shipping is only available to the address registered on ebay. Please note that any address not registered in ebay is not acceptable to ship. Shipping is available from Monday to Friday. **If you live in a remote area, We might ask extra charge for intenrational shipping. Weekends are not available because post office is closed.Term of sale-Return We accept product return within 30days from delivery date but product should be in original position and not in damaged condition,the return shipping charges will be buyer responsibility. -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.

All packages are shipped directly from japan!! Condition DescriptionThis is a used item. There is a feeling of use. Please have a look at the photos. ? Functional : The operation works well. And the operation of each button is also comfortable. ? Include : Please confirm the accessories with photos. All the accessories appearing in the photos are attached. *If you want to know more details of condition, please feel free to contact me. Please Note shipping from Japan. Policy Payment [ 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. Please do not confuse them for additional shipping charges. We only accept PayPal payments. Please pay within 3 days after your purchase.Cancellations & Returns Cancellation or returns will be accepted only if the item has an obvious problem that was not mentioned in the listing description. If that, please let us know within 3 days you got the item. Buyer is responsible for shipping costs and any charge incurred shipping products back.International Buyers 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.shipping ?????shipping????? [ Shipping Address ] We ship to only address where be registered by Paypal. [ Other Carrier ] We can arrange shipment by DHL or FedEx or Japan Post. Please ask us about Handling Time and Price. [ Combine shipping & Large Quantity ] Please contact us for combine shipping & large quantity deals before payment. We do our best for you!!!!! [ Order Processing & Handling Time ] Your order will be shipped within 5~10 business days (excluding Saturday, Sunday & Japans Holiday) after the payment is confirmed. [ Compensation & Insurance] When you choose EMS, in order to receive compensation, it is necessary to open the box and check your item with delivery staff at the time of delivery. If you dont do that, you may not receive compensation and new item from us even if your item is damaged and lacked. [ Li-ion Battery ] Some countries( Germany,France,Italy,Mongolia,SriLanka,Turkey,Nigeria and more.) does not accept lithium battery via EMS, SAL by Post Office. Please check your countrys rule yourself. If we receive order from buyer who located in these countries, we will ask buyer to choose 1 from 3. 1. Ship without Ri-ion Battery removed from item. 2. Change shipping method to Fedex or DHL with additional shipping cost. 3. Cancel

Integrated amplifier SANSUI AU-?907XR with HYPER-X balance circuitDescriptionAll products are 100% authentic.Shipping We ship using Fedex.International Buyers - Please Note:Import duties and taxes are not included in the item price or shipping cost. Please check with your country’s customs office to determine these additional costs prior to bidding or buying.

Please contact us for size and details.We only sell genuine and authentic products.Please message us if you would like to see the size details.We can only communicate in English. Please contact us in English.Description As shown in the photo. SANSUI Model Number: AU-?907XR Integrated Amplifier SABCDrelease date 1994 maximum output 190W 190W(6?) SN ratio 120dB or more sensitivity 1V/5k? Play frequency DC?300kHz 0 -3dB Power consumption (W) 400W Features/Notes Equipped with HYPER-X balance circuit Features/Notes Due to the weight of 33.0kg, it will be shipped by Sagawa Express. *Width for jackets, T-shirts, sweatshirts, blousons, coats, etc. is measured in pit to pit. *If you have any questions about an item, such as its condition or size, please be sure to ask before purchasing.Please do not ask questions after purchase.We will answer questions such as size and condition immediately.PaymentPlease pay as soon as you purchase the item.If you cant pay immediately, dont buy the item. Currently, the collection of DHL and FedEx is unstable due to seasonal factors and the influence of Global virus damage. We will give you the tracking number once the shipment is complete. ShippingPlease message me anything you would like to know about the item.Shipping from JAPAN with fully insured trackable online. via FedEx or DHL or EMS/ Expedited shipping services!* Economy shipping may occur when shipping items with a selling price of 100 USD or less. * If you are in a hurry to receive the cargo, please contact us before purchasing. We send a product with careful packing. Shipping is only available to the address registered in eBay.Please note that any address not registered in eBay is not acceptable to ship. After confirm your payment, Well ship this item within 3-10 business days.(except for Saturday, Sunday and national holiday in JAPAN) Terms of Sale Money back guarantee available if customer want return. About Us Money back guarantee available if customer want return.We are located in Japan. 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.

[Operation performed by us, condition of the item and its accessories Control number: 0930077 PHONO CD TUNER LINE TAPE1 2 input was able to be done Speaker A B output was possible. There was a BALANCE change Details: SANSUI AU-?907XR specifications Sansui Previous Owners Info: Pre-main amplifier with Hyper ?-X balanced circuit Equipped with source power direct, rec selector and AC outlet Running output (10Hz to 20kHz, both channels operating simultaneously) 190W + 190W (6 ohms) 160W + 160W (8 ohms) There are some scratches and stains, but I felt it is still relatively clean. This is the condition of the exterior. The only accessories are the power cord and the instruction manual. Shipping from Japan with Tracking Number & Insurance. I promise fast shipping via FedEx or DHL as soon as possible! Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. 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.

Slightly difficult?SANSUI?AU-?907XR?Premain amplifier??SANSUI?AU-907XR ... *Somewhat difficult reason *There is a contact failure in RecOut of TAPE1. ... ?Purchased used about 2 years ago. There is a contact defect in the RecOut of TAPE1. This is not a problem for those who do not use a recording device. ... Speaker=D-202AX, Source=DA-3000 After several hours of warm-up playback with various music files, After a few hours of warm-up playback with various music files, I auditioned the unit in March 2023. Various inputs = Sound output OK. However, balanced input has not been checked. Speaker output = A and B terminals, sound output OK. The sound was soft and full. ... The back of the unit is dirty, but other surfaces are in good condition. There is no galling of the volume. The original box is missing. There is no original box. ... Shipping from Japan with Tracking Number & Insurance. I promise fast shipping via FedEx or DHL as soon as possible! Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. 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.

DescriptionCondition: Management number: 0930077PHONO CD TUNER LINE TAPE1 2 input possibleSpeaker AB output was possibleThere has been a change in balanceDetails: SANSUI AU-?907XR specifications SansuiPrevious owner information: Integrated amplifier equipped with Hyper ?-X balance circuitEquipped with source power direct, rec selector, and AC outletEffective output (10Hz to 20kHz, both channels operating simultaneously) 190W + 190W (6?) 160W + 160W (8?)This is just information I heard from the previous owner. I dont have any specialized knowledge, so I dont know if this information is correct. There are some scratches and dirt, but I think it is still relatively clean. Thisis the condition of the exterior. This is a subjective opinion, so please be sure to check all the images and make your own judgment. The only accessories are the power cord and instructions.Please check the condition and photos carefully before bidding. PaymentWe accept only PayPal payment.Please pay within 5 days after the auction. Shipping Express international shipping with an insured tracking service from outside US ( 5 to 10 business days). Please ask us for shipping when order from the Middle East, New Zealand and other unspecified places.Return Policy 100% Authentic products. Each item is verified for authenticity. We are receiving guidance and licensed by Japanese Police Departemt. Authorization number: 303251705982. We accept all returns within 14 days of receiving the products. We will refund original payment when the product has returned and is found in the same condition as it was sold. We do NOT refund original shipping charge. Return shipping costs are the resposibility of the buyer. 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.

Description & Condition There are scratches and dirt Shipping We ship using FedEx, DHL and Japan Post. Payment We usually ship within 10 business days of receiving cleared payment. . International Buyers - Please Note: Import duties, taxes and charges are not included in the item price or shipping charges.These charges are the buyer’s responsibility.Please check with your country’s 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. I do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior.

SANSUI AU-?907XR pre-main amplifier transistor AC100V used from japanDescriptionItem Condition : UsedFeatures and Remarks 2023.2 Maintained at repair center Features/Remarks Right channel output transistor, drive transistor, semi-fixed volume, speaker relay, headphone relay, output transistor - insulated mica plate, foot felt replacement Features/Remarks Disassembly of each switch, cleaning of contacts/repair of deteriorated soldering points on each circuit board/adjustment of DC offset and bias currentShipping Handling Time: 5 business days We will ship your item on week day from Japan. Standard Shipping with tracking number by FedEX or DHL or Japan post. We will ships within 5 business days after receiving cleared payment. ?Business days are not include Saturday, Sunday and National holidays.PackageWe pack items carefully and send them from Japan prompthy. You should have no concern about shipment. 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. Thank you for your understanding.

All packages are shipped directly from japan!!Condition DescriptionThis is a used item. There is a feeling of use. Please have a look at the photos. ? Functional : The operation works well. And the operation of each button is also comfortable. ? Include : Please confirm the accessories with photos. All the accessories appearing in the photos are attached. *If you want to know more details of condition, please feel free to contact me. Please Note shipping from Japan. Policy Payment[ 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. Please do not confuse them for additional shipping charges. We only accept PayPal payments. Please pay within 3 days after your purchase.Cancellations & ReturnsCancellation or returns will be accepted only if the item has an obvious problem that was not mentioned in the listing description. If that, please let us know within 3 days you got the item. Buyer is responsible for shipping costs and any charge incurred shipping products back.International BuyersImport 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.shipping?????shipping????? [ Shipping Address ] We ship to only address where be registered by Paypal. [ Other Carrier ] We can arrange shipment by DHL or FedEx or Japan Post. Please ask us about Handling Time and Price. [ Combine shipping & Large Quantity ] Please contact us for combine shipping & large quantity deals before payment. We do our best for you!!!!! [ Order Processing & Handling Time ] Your order will be shipped within 5~10 business days (excluding Saturday, Sunday & Japans Holiday) after the payment is confirmed. [ Compensation & Insurance] When you choose EMS, in order to receive compensation, it is necessary to open the box and check your item with delivery staff at the time of delivery. If you dont do that, you may not receive compensation and new item from us even if your item is damaged and lacked. [ Li-ion Battery ] Some countries( Germany,France,Italy,Mongolia,SriLanka,Turkey,Nigeria and more.) does not accept lithium battery via EMS, SAL by Post Office. Please check your countrys rule yourself. If we receive order from buyer who located in these countries, we will ask buyer to choose 1 from 3. 1. Ship without Ri-ion Battery removed from item. 2. Change shipping method to Fedex or DHL with additional shipping cost. 3. Cancel

Vintage 1994 Sansui AU-? 907 XR Integrated Amplifier Transistor MaintainedInternational 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.