Item Description Condition is good.Operation not confirmed. Since it is a used item, it is in good condition overall, although there are some damages and stains. YAQIN Model No.: MC-100B Vacuum tube pre-main amplifier Features & Remarks KT88 push-pull pre-main amplifier RCA jack x 4 50Wx2/25Wx2 output Shipping Handling time: Approximately 5-10 business days. Shipping method: Expedited shipping (FedEx /DHL /EMS): It will arrive approximately 4 days after shipment (to US), depending on the location. You can know the delivery status in detail.The method available depends on the status of the airmail.Shipping is only available at addresses registered with eBay. Please note that addresses that are not registered with eBay cannot be shipped. 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

DescriptionAll items are shown in the pictures. If you cannot tell from the pictures please contact us. Due to differences in region codes some games CDs DVDs etc. may not ?be available. The voltage of some electrical products may be different. Please make sure to check before purchasing. PaymentPlease pay within 2 days of winning the auction. Shipping There have been delays in delivery due to the global pandemic. There may be a significant delay in the scheduled delivery date. Delivery Time Economy delivery? 3 to 4 weeks (Tracking numbers are not reflected in Australia Canada and some regions.) Standard delivery 2 to 3 weeks Terms of Sale If payment is not confirmed within 2 days of purchase the order will be cancelled. Returns are accepted within 60 days.International Buyers - Please Note: Import duties and taxes are not included in the item price or shipping cost. Please check with your countrys customs office for additional costs before bidding or purchasing. Duties and taxes are not collected by the shipping company. Please check with your countrys customs office for additional costs before bidding or purchasing. The act of declaring goods at a lower value or declaring goods as gifts is prohibited by international governments.

DescriptionAll items are shown in the pictures. If you cannot tell from the pictures please contact us. Due to differences in region codes some games CDs DVDs etc. may not ?be available. The voltage of some electrical products may be different. Please make sure to check before purchasing. PaymentPlease pay within 2 days of winning the auction. Shipping There have been delays in delivery due to the global pandemic. There may be a significant delay in the scheduled delivery date. Delivery Time Economy delivery? 3 to 4 weeks (Tracking numbers are not reflected in Australia Canada and some regions.) Standard delivery 2 to 3 weeks Terms of Sale If payment is not confirmed within 2 days of purchase the order will be cancelled. Returns are accepted within 60 days.International Buyers - Please Note: Import duties and taxes are not included in the item price or shipping cost. Please check with your countrys customs office for additional costs before bidding or purchasing. Duties and taxes are not collected by the shipping company. Please check with your countrys customs office for additional costs before bidding or purchasing. The act of declaring goods at a lower value or declaring goods as gifts is prohibited by international governments.

Used and tested YAQIN MC-100B KT88 Push-pull tube amplifier HIFI vacuum tube amplifier. Unit runs and operates as intended. The unit is missing its protective cage that fastens over the tubes.- Transformer use silicon steel and oxygen-free copper, to ensure a clean and strong signal from input to output with no static and an extremely low noise floor.Specifications:Output Power:Ultra-linear: 50Wx2 (8 ohm)Triode state: 25W x2 (8 ohm)Tubes: KT88 x 4, 6n8p(6SN7) x 4 and 12AX7 x 2Input sensitivity: Integrated 0.25V Power 0.6VFrequency: 5Hz~80KHz (-2dB)Signal/Noise Ratio: ?90dBHarmonic Distortion: <1.5%Input impedance: 20KohmConsumption: 300WLoad impedance: 8ohm or 4ohmSignal Inputs Level: >300mvAudio Input: 4 groupsAudio Output: 2 groupsInput impedance: 20KohmColour: Gold Body & Dark GreenSize: 18.5x15x8.2in(Deep x wide x high)?Product weight: about 59lbPackage weight : 66lbInput voltage: 110-120v or 220-240v 50/60hz available.

It is in great working condition. Local pick up only.

Yaqin MC-100C KT88 Bluetooth Integrated Vacuum Tube Power Pure Rear Amplifier Bluetooth 110V-240V KT88 Tube AmpUp for sale is a Yaqin MC-100C KT88 Bluetooth Integrated Vacuum Tube Power Amplifier, suitable for use with 110V-240V power sources. This amplifier is designed with high-quality components that provide crystal-clear sound and an immersive audio experience. With its sleek appearance, this Yaqin MC-100C model is the perfect addition to any home entertainment system. The amplifier features Bluetooth connectivity, allowing you to connect your devices wirelessly and stream your favorite music. It is a great option for audiophiles and home theater enthusiasts who want to enjoy high-quality sound from their favorite music.This is a good looking, great sounding, powerful tube amp with Bluetooth.It can also be used as a power amp via AMP input. Output Power?UL - 55W×2?8??/ TR - 28W×2?8?? Tubes: KT88 * 4, 6N8P/6SN7 * 4, 12AX7 * 2 -------------------------------------------------------------------------- The following description is from the Chinese website... The main factors affect the sound quality of vacuum tube amplifier 1. Single-ended and push-pull circuitAt the end of the power amplification, amplification of push-pull is easier to get high power output, because push-pull is a vacuum tube amplifier + signal, a vacuum tube amplifier - signal, and then superimposed, so large distortion. Single-ended amplifier is a vacuum tube amplifier +, - signal, does not need the signal superposition, therefore less distortion. The sound Single-ended than push-pull good, especially in some minor details. However, Single-ended is difficult to obtain high power output, with vacuum tubes of the same type, Single-ended can do 10W, while push-pull is easy to do 30W, Single-ended to obtain large power will have to pay more price. 2. push-pull end power amplifier of vacuum tube different connectionspush-pull the end of the power amplifying vacuum tube usually have three connections: triode form, super linear form and standard form. Theoretically speaking, the triode form by minimum distortion, output power is minimum; standard form get larger distortion, power is also the maximum; between super linear form between. 3. Affect the power transformer and output transformer of soundHigh quality vacuum tube amplifier inseparable quality transformers, power transformers currently technically no trouble, the output transformer is the decision of the vacuum tube amplifier sound quality is the key. Because regardless of the output transformer selection is good, how sophisticated technology, both methods exist to avoid leakage inductance and stray capacitance components, resulting phase distortion. Output transformer as inductive element, to the transmission signals of different frequencies have different inductance. Therefore, the output of the transformer will be different in different voices lead. No high-quality output transformer, other aspects of the production of better quality vacuum tube amplifier is also meaningless.Protection Function Note:This lamp is used for high voltage delay indication and fault indication when turning on. It is red when you open, turn green in 30 seconds and enter to work. When the machine breaks down(such as the tube is break down or output signal is too large)may damage the machine and speakers, the inner protection circuit will be cutting off the HAVC automatically, red and green light flash alternately, the user needs to shut off the machine and removal of faults, then the user can restart the machine.Bluetooth 5.0 Usage:The machine with a built-in bluetooth of version 4.0. So you can quickly connected the bluetooth device of digital products such as notebook computer, mobile phone and PAD. Realize the wireless transmission of music and enjoy it . Operation method is as follow? 1. Press the “INPUT” button on the panel or the “ ” on the remote to control bluetooth function.2.After hearing blare of the speakers, opened the Bluetooth function of connected digital equipment, and them search“F-3188”and connect it.Parameter:* Output Power?UL55W×2?8??TL28W×2?8??* Frequency Response?5Hz--70KHz?-2dB?* Distortion??0.8% SNR??90dB?A?* Input Sensitivity?Integrated??250mV* Pure post-stage??0.8V* Maximum Power Consumption??390VA* Tube?KT88 x 4 6N8P or 6SN7 x 4 12AX7 x 2Gross* Weight?about 34 kg* Net Weight?about 28 kg Size??W?395mm?D?495mm?H?240mm

YAQIN Vacuum Tube Pre-Main Amplifier MC-100B KT88 Push-Pu Vacuum Tube Pre-Main Amplifier MC-100B ( KT88 push-pull ) This product has been tested for sound output.(Sound is normal from bass to treble.) All inputs and selector positions are normal, and there is no buzzing in the volume. Each vacuum tube lights are also normal.(Please check with the pictures.) Please refrain from turning the power on and off continuously, as this will cause a pop noise. (It may be improved by replacing parts, but we do not know because we have no knowledge about it.) Unlike a transistor amp, this is a vacuum tube amp, so there may be a slight chirping sound when silent. About sound qualityUnlike its flashy appearance, the sound quality is good, and the rough sounding speakers become calm and thick. The sound quality is good, unlike the flashy appearance, and the rough sounding speakers become calm and thicker.In addition, since it is a KT88 push-pull, it has a lot of output power, and I think it will be loud enough except for speakers with a very low performance ratio. I dont think you will be bothered by the lack of output power that is common in vacuum tube amps. Therefore, I personally recommend push-pull amps with more power than single amps.(?All of the above is my personal feeling.) [ 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 do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior. [ RETURNS POLICY ]We accept returns for up to 30 days after you have received your purchase.All returns must be in the original condition including tags and packaging.To initiate a return, simply open a return request through eBay by selecting from the drop-down menu next to your order on the Purchase History page.We will provide you with an RMA # and the address to mail the return to once the return request is opened.If you purchase the return label through eBay, we will automatically be notified of the tracking number.However, if you ship it yourself, please add the tracking number to the return portal.Returns are processed within 2 business days of receipt.Refunds will be processed to your original payment method.

YAQINMC-100B Vacuum Tube Premain Amplifier YAQIN Precious Condition This is a used item that was placed as an interior decoration at home. Please note that there is a graze on the side that is not bothersome. [ 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 do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior. [ RETURNS POLICY ]We accept returns for up to 30 days after you have received your purchase.All returns must be in the original condition including tags and packaging.To initiate a return, simply open a return request through eBay by selecting from the drop-down menu next to your order on the Purchase History page.We will provide you with an RMA # and the address to mail the return to once the return request is opened.If you purchase the return label through eBay, we will automatically be notified of the tracking number.However, if you ship it yourself, please add the tracking number to the return portal.Returns are processed within 2 business days of receipt.Refunds will be processed to your original payment method.

YAQIN MC-100B KT88 Vacuum Tube Hi-End Integrated Power Amplifier. Was used for a total of about 50 hours. Works flawlessly - fantastic sound! For local pick up only. Thank you!

YAQIN MC-100B KT88 Vacuum Tube Hi-End Integrated Power Amplifier. Was use for a total of about 100 hours. Works flawlessly!For local pick up only. Thank you! Technical Specifications: Line Voltage:110V - 240V AVAILABLE, set to US Line voltage 110VacOutput PowerUltra-linear: 2x 60W (8 ohm),Triode state: 2x 30W (8 ohm)TubeKT88 x 4; 6N8P x 4; 12AX7B x 2Input sensitivityIntegrated mode 0.25V pure post-stage mode 0.6VFrequency5Hz~70KHz (-2dB)Signal/Noise Ratio?85dB A WeightHarmonic Distortion<0.5%Input impedance20KohmConsumption320WLoad impedance8ohm or 4ohmSignal Inputs Level>300mvAudio InputTAPE,DVD,CD,TUNERAudio Output2 groups

ONKYO audio equipment YAQINMC-100B vacuum tube integrated amplifier YAQIN Description PRODUCTS ·This is a used item that was placed as an interior decoration for your home! Two female staff members are conducting cleaning checks so that you can continue to use it for a long time, so the finish is one rank higher than that of ordinary users!Please understand that there are some scratches on the sides that dont bother you! ?Genuine, fully functional product, verified to work. CONDITION LEVEL 3 Very Good 0 New 1 Mint 2 Excellent 3 Very Good 4 Good 5 Acceptable-Junk PAYMENTS PayPal and all major Debit / Credit Cards. We ship within 48hours of payment. CHECKOUT Please check your address before paying because we can ONLY ship to addresses that are entered before placing the order. ShippingStandard Shipping (Fedex or DHL or EMS) Tracking Number Delivery time : About 5-10Days Weekend orders will ship on Monday or Tuesday. International Buyers - Please Note: International Packages We ship to all US Territories, Europe and Asia and Middle East and Australia and Canada including Guam and Hawaii. CUSTOMER SERVICE If you have any questions or issues, we are at your service.You can email us anytime through eBay messages.We will reply to your question or invoice within 3 days. RETURN INFORMATION We offer a standard FREE 30 days refund or exchange policy. Item must be returned in original condition in order to receive a full refund. Customs duty 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.

I have owned this amp for almost two years but not currently using it in my set up, I have two other valve amps. This is the most powerful at 60RMS per channel. Even the 25RMS per channel valve amps are ample power for majority of tower speakers. Amp is in good condition, 240v power supply. YAQIN MC-100B KT88 Vacuum Tube Hi-end Integrated Power Amplifier 110v-240v. Product Description: Features: User-selected amplifier modes, UT (Ultra linear) mode provides greater output power and TR (Triode) mode does smooth and rich sound. User-selected pure post-stage and integrated modes; Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency; Output transformers manufactured with Japanese silicon steel sheet and oxygen-free enameled copper and high quality lacquer, which offer a wide dynamic range at full rated output; Independent power supply for each channel. Applies special potentiometer as volume controller with low noise, and durable; Beautiful aluminum and steel heavy duty chassis, panel and bezels; Provides user adjustable bias, test points and tool to refine bias of the output tubes. Technical Specifications: Input Power110V - 240V AVAILABLE ? pls let us know your voltage choice ) Output Power Ultra-linear: 2x 60W (8 ohm), Triode state: 2x 30W (8 ohm) TubeKT88 x 4; 6N8P x 4; 12AX7B x 2 Input sensitivityIntegrated mode 0.25V pure post-stage mode 0.6V Frequency5Hz~70KHz (-2dB) Signal/Noise Ratio?85dB A Weight Harmonic Distortion<0.5% Input impedance20Kohm Consumption320W Load impedance8ohm or 4ohm Signal Inputs Level>300mv Audio InputTAPE,DVD,CD,TUNER Audio Output2 groups Input impedance20Kohm ColorGold Body & Dark Green Power Supply Don't miss your chance, just get it now!!! Dimensions: Gross Weight (kg): 29.5kg Net Weight (kg): 25.5kg Machine Size (mm): 465 × 396 × 212 mm Outsourcing Dimensions (mm): 610 × 510 × 365 mm

Beautiful tube amplifier. Rarely used and carefully handled. In near mint condition. Ships with all original accessories and documentation in the factory shipping box. This is a chance to own a really wonderful sounding amp in great condition from a single, careful owner. Happy buying! Details: Input Power 110V Tubes: KT88 x 4; 6N8P x 4; 12AX7B x 2 Impedance: 8ohm or 4ohms Output Power: Ultra-linear: 2x 60W (8 ohm), Triode state: 2x 30W (8 ohm

***PLEASE READ THE FULL DESCRIPTION BEFORE BIDDING AND MAKE SURE YOU ARE OKAY WITH MY NO RETURN POLICY*** Works perfectly! Tested thoroughly prior to listing. I am selling this AS-IS, FOR PARTS/NOT WORKING, because I DO NOT ACCEPT returns on electronic items. Please see photos for detailed condition. Because of this, I am starting this listing at $1 with NO RESERVE. This is the most incredible amp I have ever owned, and it breaks my heart to let it go! Comes in ORIGINAL Factory box, with BRAND NEW factory (China) tubes, all instructions and tools. The sound is INCREDIBLE! Holographic and expansive. Clean and clear and warm. Pushed my power-hungry speakers with EASE. You MUST adjust the bias on this amp ANY TIME you change the tubes. Failure to do so can damage the tubes. Instructions and tools for doing this are included in the manual/box (see photos). You will also need a cheap multimeter. This amp is very sensitive to voltage. I ran it on a VARIAC turned to right around 100V, and it never had a single problem or blown fuse. I strongly recommend you pick up a decent variac and give it less than 120V +/- for longer life and better sound. In addition to the stock tubes (which I put back into the amp for shipping), I found the best combo (to my ears) of rare and vintage tubes. Included in the auction are (all pictured): 4 Shuguang Treasure KT88-Z $129/pair2 Brimar 6SN7GTY KB/FE (CV1988) (13D2) (B65) Black Beauty Rare $5-600/pair2 RCA 6SN7GT Gray Glass Tube $2-300/pair2 Shuguang Golden Dragon 12AX7 Tube $200/pair The rare tubes will ship in a separate box in their original packaging and carefully padded and insured. Also included is a small DSD sabre DAC (https://www.spaceaudio.eu/old/) that can stream via USB, and some ultra-quality cables. There are resistors to cap unused inputs to reduce noise as well. (pictured) In addition to all this, there is a custom-made dust cover for the amp (pictured) It breaks my heart to let this go, but it only gets used a few times each year when I have company. Id like to see it go to a good home. Heavy and huge, will ship in two separate and fully insured boxes to arrive to you safe and sound. Shipping costs reflect this.________________________ Product Description: Features: User-selected amplifier modes, UT (Ultra linear) mode provides greater output power and TR (Triode) mode does smooth and rich sound. User-selected pure post-stage and integrated modes; Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency; Output transformers manufactured with Japanese silicon steel sheet and oxygen-free enameled copper and high quality lacquer, which offer a wide dynamic range at full rated output; Independent power supply for each channel. Applies special potentiometer as volume controller with low noise, and durable; Beautiful aluminum and steel heavy duty chassis, panel and bezels; Provides user adjustable bias, test points and tool to refine bias of the output tubes. Technical Specifications: Input Power110V - 240V AVAILABLE ? pls let us know your voltage choice )Output PowerUltra-linear: 2x 60W (8 ohm),Triode state: 2x 30W (8 ohm)TubeKT88 x 4; 6N8P x 4; 12AX7B x 2Input sensitivityIntegrated mode 0.25V pure post-stage mode 0.6VFrequency5Hz~70KHz (-2dB)Signal/Noise Ratio?85dB A WeightHarmonic Distortion<0.5%Input impedance20KohmConsumption320WLoad impedance8ohm or 4ohmSignal Inputs Level>300mvAudio InputTAPE,DVD,CD,TUNERAudio Output2 groupsInput impedance20KohmColorGold Body & Dark Green Power Supply________________________________WYSIWYG - What you see is what you get! Please keep in mind that all my items are sold AS-IS. I do my absolute best to describe them as completely as possible. Its that time. I am downsizing in a major way. Selling MANY items. Check my other auctions.See photos for details, I try my best to describe them accurately. Questions? Ask. Shipping is for 48 contiguous states. APO, PO box, and international buyers will likely pay significantly more. PO BOX and FOP/APO MUST contact me before paying so I can adjust shipping. I ONLY use eBay international shipping for any order outside the US. Please do not ask me to ship any other way. If you are in international buyer, eBay will give you a quote for shipping that I have ZERO CONTROL over. Payment due within 24 hours of auction close, unless you contact me in advance and we work something out. Please dont bid if you dont plan to pay! $1 and no reserve! Winning bidder gets the item! No returns please. Check my feedback and buy with confidence. I ship weekdays and carefully pack all my items. I know what it’s like to get a broken item in the mail, and go above and beyond to make sure this doesn’t happen! In fact, I INSIST on packing your package to a very high standard for both our protection. This means lots of packing materials and time. If you are unhappy with my shipping prices, please do not bid! Shipping costs have skyrocketed along with gas prices, so please understand this before you bid. I can combine shipping if you win multiple auctions. Please wait before paying if you win more than one of my items so I can give you an adjusted invoice. I am a single person, selling my personal stuff. I do not use feedback bots or anything else. I would appreciate positive feedback once your item is received. This lets me know everything is good on your end. I will happily reciprocate! Thanks!

YAQIN MC-100B KT88x4 60W (8 ohm) Vacuum Hi-End Integrated Power Tube Amplifier. Reluctant to courier but it can be arranged on your side if needed. Includes the multimeter and bias screwdriver, all working as expected. One small nick on the aluminium facia in the left side. Please contact me for any further details. Features: * User-selected amplifier modes, UT (Ultra linear) mode provides greater output power and TR (Triode) mode does smooth and rich sound * User-selected pure post-stage and integrated modes; * Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency; * Output transformers manufactured with Japanese silicon steel sheet and oxygen-free enameled copper and high quality lacquer, which offer a wide dynamic range at full rated output? * Independent power supply for each channel? * Applies special potentiometer as volume controller with low noise, and durable; * Beautiful aluminum and steel heavy duty chassis, panel and bezels; * Provides user adjustable bias, test points and tool to refine bias of the output tubes? * YaQin MC-100B can use like a pure power tube amplifier or also an integrated tube amplifier ? * Included metal cover for tubes Parameters: * Output Power: . Ultra-linear: 2x 60W (8 ohm) . Triode state: 2x 30W (8 ohm) * Tubes: Chinese KT88 x 4; SG 6n8p x 4 and 12AX7 x 2 * Input sensitivity: Integrated 0.25V Power 0.6V * Frequency: 5Hz~80KHz (-2dB) * Signal/Noise Ratio: ?90dB * Harmonic Distortion: <1.5% * Input impedance: 20Kohm * Consumption: 300W * Load impedance: 8ohm or 4ohm * Signal Inputs Level: >300mv * Audio Input: 4 groups * Audio Output: 2 groups * Size: 47*38.5*21cm(Deep*wide*high) * Input voltage: 110-240v 50/60hz available