Works perfectly.

Drop + THX AAA 789 Linear Headphone Amplifier - Desktop Amp with Balanced XLR and Single-Ended RCA Inputs DescriptionAnnounced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the company’s groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amp’s performance figures speak for themselves: It’s powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. That’s four times the power of the Objective 2 amp, for example, with far less distortion. Capable of driving any headphones, including high-impedance, high-current, and high-sensitivity types, the THX AAA 789 amp transmits the original audio in its purest possible form. That’s thanks in large part to THX AAA technology, which reduces harmonic, intermodulation, and crossover distortions. Virtually every conventional amplifier distorts significantly when driving current into a headphone, producing crossover distortion that fatigues the listener. The engineers at THX set out to solve this problem—and to deliver the performance of a class-A amplifier without the heat and weight—and THX AAA technology was born. To learn more about Laurie Fincham, the chief scientist behind THX AAA, check out this interview on Home Theater Geeks. Each channel of the THX AAA 789 amp is equipped with a low-bias class-AB main amplifier and an auxiliary error-correction amplifier, the former providing the majority of the power and the latter providing a realtime low-power error-correction signal. These work together to null all distortion components. Additionally, the product’s low quiescent current minimizes wasted power. Finally, the THX AAA 789 has multiple gain level settings to optimize for headphone and earphone listening.ShippingWe ship within 5 business of payment, ETD depends on courier processingWe usually ship FedEx or USPS depending on item size & weight ReturnsNO RETURNS ~ MOST SALES FINALPLEASE CONTACT US WITH QUESTIONS & INQUIRIES FeedbackIf you have any problems with the order, contact us we will do our best to fix the problem.Please do not leave a negative feedback without giving us the opportunity to solve the problem first.Feedback will be much appreciated, we will leave a feedback right back. ContactIf you have any queries, please contact us via ebay. WaistBuster WB-BPA Pro Device Details:SAFE & PAINLESS: A simple, painless non-invasive biophotonic activation or photobiomodulation general wellness device with 80 high-output, red spectrum (635nm) light emitting diodes modulated by proprietary software algorithms CONVENIENCE AT HOME: A convenient, discreet home deviceQUICK SESSIONS: A small commitment of 8 minutes 2+ days a week along with following the program guidelines is all that is neededLARGE COVERAGE: A large 360 degree coverage area around the waist to target the front of the stomach, flanks (love handles) and lower back…or anywhere else on the bodyFLEXIBLE DESIGN: A very flexible design to fit petite waists up to waist sizes of 60+ inches in circumference DURABLE DESIGN WITH A WARRANTY: A design to last up to 5 years or more, with an included one-year limited warranty with your purchaseCOMFORTABLE DESIGN: A comfortable design to wear while on the computer, on the couch or while doing your favorite cardio exercisePORTABLE DESIGN: A portable device that is powered by a rechargeable lithium ion battery and includes a carrying bag to take while traveling for work or to your favorite vacation destination ShippingWe ship within 5 business of payment, ETD depends on courier processingWe usually ship FedEx or USPS depending on item size & weight ReturnsNO RETURNS ~ MOST SALES FINALPLEASE CONTACT US WITH QUESTIONS & INQUIRIES FeedbackIf you have any problems with the order, contact us we will do our best to fix the problem.Please do not leave a negative feedback without giving us the opportunity to solve the problem first.Feedback will be much appreciated, we will leave a feedback right back. ContactIf you have any queries, please contact us via ebay.

Barely used. Sounds fantastic! Introducing the Drop + THX AAA 789 Linear Headphone Amp, perfect for high-quality audio playback. This device is equipped with balanced XLR and RCA inputs and outputs, making it versatile for various audio inputs. The amp has two channels and is compatible with various audio formats, including THX. This amplifier is designed by Massdrop/DROP and is perfect for audiophiles who want to enjoy high-quality sound. The device also has a sleek design, making it a great addition to any home audio setup.

Drop + THX AAA 789 Linear Headphone Amplifier - Desktop Amp with Balanced XLR and Single-Ended RCA Inputs DescriptionAnnounced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the company’s groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amp’s performance figures speak for themselves: It’s powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. That’s four times the power of the Objective 2 amp, for example, with far less distortion. Capable of driving any headphones, including high-impedance, high-current, and high-sensitivity types, the THX AAA 789 amp transmits the original audio in its purest possible form. That’s thanks in large part to THX AAA technology, which reduces harmonic, intermodulation, and crossover distortions. Virtually every conventional amplifier distorts significantly when driving current into a headphone, producing crossover distortion that fatigues the listener. The engineers at THX set out to solve this problem—and to deliver the performance of a class-A amplifier without the heat and weight—and THX AAA technology was born. To learn more about Laurie Fincham, the chief scientist behind THX AAA, check out this interview on Home Theater Geeks. Each channel of the THX AAA 789 amp is equipped with a low-bias class-AB main amplifier and an auxiliary error-correction amplifier, the former providing the majority of the power and the latter providing a realtime low-power error-correction signal. These work together to null all distortion components. Additionally, the product’s low quiescent current minimizes wasted power. Finally, the THX AAA 789 has multiple gain level settings to optimize for headphone and earphone listening.ShippingWe ship within 5 business of payment, ETD depends on courier processingWe usually ship FedEx or USPS depending on item size & weight ReturnsNO RETURNS ~ MOST SALES FINALPLEASE CONTACT US WITH QUESTIONS & INQUIRIES FeedbackIf you have any problems with the order, contact us we will do our best to fix the problem.Please do not leave a negative feedback without giving us the opportunity to solve the problem first.Feedback will be much appreciated, we will leave a feedback right back. ContactIf you have any queries, please contact us via ebay. WaistBuster WB-BPA Pro Device Details:SAFE & PAINLESS: A simple, painless non-invasive biophotonic activation or photobiomodulation general wellness device with 80 high-output, red spectrum (635nm) light emitting diodes modulated by proprietary software algorithms CONVENIENCE AT HOME: A convenient, discreet home deviceQUICK SESSIONS: A small commitment of 8 minutes 2+ days a week along with following the program guidelines is all that is neededLARGE COVERAGE: A large 360 degree coverage area around the waist to target the front of the stomach, flanks (love handles) and lower back…or anywhere else on the bodyFLEXIBLE DESIGN: A very flexible design to fit petite waists up to waist sizes of 60+ inches in circumference DURABLE DESIGN WITH A WARRANTY: A design to last up to 5 years or more, with an included one-year limited warranty with your purchaseCOMFORTABLE DESIGN: A comfortable design to wear while on the computer, on the couch or while doing your favorite cardio exercisePORTABLE DESIGN: A portable device that is powered by a rechargeable lithium ion battery and includes a carrying bag to take while traveling for work or to your favorite vacation destination ShippingWe ship within 5 business of payment, ETD depends on courier processingWe usually ship FedEx or USPS depending on item size & weight ReturnsNO RETURNS ~ MOST SALES FINALPLEASE CONTACT US WITH QUESTIONS & INQUIRIES FeedbackIf you have any problems with the order, contact us we will do our best to fix the problem.Please do not leave a negative feedback without giving us the opportunity to solve the problem first.Feedback will be much appreciated, we will leave a feedback right back. ContactIf you have any queries, please contact us via ebay.

Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp- **PRE-OWNED**. MISSING POWER SUPPLY. REPLACEMENT CAN BE PURCHASED ONLINE FOR $15-$20

Drop collaboration THX 789 amplifier. Includes original box and power adapter. Has seen less than 100 hours use and is in excellent condition. I ship within 1 business day of payment.

Great headphone with passthrough for any room system. A bit scratchy volume pot that goes away after it warms up. Great for a hi end audio system.

Drop + THX AAA 789 Linear Headphone Amplifier Desktop Amp. ***after I plug it, the red light turns on, but the not the white light**

Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp used works good.

The Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Ive loved my time with this amp.. the clean sound and effortless power is amazing. Only selling because I need to shrink my setup physically. Ships UPS Ground to continental USA. Thanks for looking!

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies DROP +THX AAA 789 Massdrop Linear Headphone Amplifier; Black Product SKU: 46002 Voltage: 100-240V # of Owners: Unknown Service History: None Serial Number: AOIAADT7010544 Age: Unknown Tobacco Exposure: No MSRP: $199 Cosmetic Description: 8/10 Very good condition with minimal visible cosmetic wear including some faint scuffs on the back edge of the top surface. Outstanding condition overall - the condition will please even the most discerning audiophile. What is Included: Headphone amplifier, Power adapter, Power cable Other Notes: Announced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. - Drop Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $19- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

Drop Plus THX AAA 789 Linear Amplifier. It works great, apart from the Coaxial inputs have a humming sound. the balanced inputs work flawlessly. Im selling because My Wife no longer uses it, I have one for myself so I dont need an extra one

Great condition, works great. Only amp+power supply, no box.

YOU ARE BUYING A LIGHTLY USED Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp - * PLEASE SEE PICTURES FOR CONDITION* And be sure to zoom in on the pics ???????????? Do not hesitate to ask if you have questions ?? **Only what is shown in pictures is what is being sold ** - *Note: Ships only in the 48 contiguous United States Sold AS IS Returns not accepted ~Please see pictures for condition of item prior to purchase~ ***See my feedback and buy with confidence***

Im selling Drop + THX AAA™ 789 Linear Amplifier. Its in great working condition. Specs General All parameters measured at 0 dB gain, 1 kHz, with balanced inputs and 300-ohm load unless otherwise notedInputs: Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-platedOutputs: 1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-platedFrequency response: + 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHzInput impedance: 50 kOhms balanced or unbalancedChassis: High-grade CNC-milled aluminum with bead-blasted finishPower supply: 24 VDC inline brick, universal input 100–240 VACDimensions: 8.3 x 9.1 x 2.2 in (210 x 230 x 57 mm)Weight: 3.4 lbs (1,520 g) Balanced Output Output power: 6000 mW, 16 ohms, <1% THD (watts per channel)Output power: 6000 mW, 32 ohms, <1% THD (watts per channel)Output power: 800 mW, 300 ohms, <1% THD (watts per channel)Output power: 400 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -140 dB, 300 ohms, 100 mW: 0.000010%THD: -130 dB, 32 ohms, 1 mW: 0.000032%THD: -130 dB, 32 ohms, 100 mW: 0.000032%THD: -122 dB, 16 ohms, 1 mW: 0.000080%THD: -122 dB, 16 ohms, 100 mW: 0.000080%IMD: -123 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000071%IMD: -124 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000063%Crosstalk: -127 dB, 300 ohms: 0.000045%Noise (A-wt): 2.4 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB), selectable via front switchOutput impedance: < 0.1 ohms Single-Ended Output Output power: 3000 mW, 16 ohms, <1% THD (watts per channel)Output power: 1800 mW, 32 ohms, <1% THD (watts per channel)Output power: 200 mW, 300 ohms, <1% THD (watts per channel)Output power: 100 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -135 dB, 300 ohms, 100 mW: 0.000018%THD: -135 dB, 32 ohms, 1 mW: 0.000018%THD: -133 dB, 32 ohms, 100 mW: 0.000022%THD: -130 dB, 16 ohms, 1 mW: 0.000032%THD: -125 dB, 16 ohms, 100 mW: 0.000056%IMD: -117 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000141%IMD: -125 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000056%Crosstalk: -90 dB, 300 ohms: 0.003162%Noise (A-wt): 1.2 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB), selectable via front switchOutput impedance: < 0.05 ohms

Drop Plus THX AAA 789 Linear Amplifier. It works great, apart from the Coaxial inputs have a humming sound. the balanced inputs work flawlessly. Im selling because My Wife no longer uses it, I have one for myself so I dont need an extra one

Massdrop + THX AAA 789 Linear Headphone Amplifier - Drop Includes headphone amplifier, AC Adapter, power cord, manual, original box. See pics for details.

Excellent condition. All original accessories and packaging.

Drop Plus THX AAA 789 Linear Amplifier. It works great, apart from the Coaxial inputs have a humming sound. the balanced inputs work flawlessly. Im selling because My Wife no longer uses it, I have one for myself so I dont need an extra one

Excellent condition. All original accessories and packaging.

Im selling Drop + THX AAA™ 789 Linear Amplifier. Its in great working condition. Specs General All parameters measured at 0 dB gain, 1 kHz, with balanced inputs and 300-ohm load unless otherwise notedInputs: Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-platedOutputs: 1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-platedFrequency response: + 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHzInput impedance: 50 kOhms balanced or unbalancedChassis: High-grade CNC-milled aluminum with bead-blasted finishPower supply: 24 VDC inline brick, universal input 100–240 VACDimensions: 8.3 x 9.1 x 2.2 in (210 x 230 x 57 mm)Weight: 3.4 lbs (1,520 g) Balanced Output Output power: 6000 mW, 16 ohms, <1% THD (watts per channel)Output power: 6000 mW, 32 ohms, <1% THD (watts per channel)Output power: 800 mW, 300 ohms, <1% THD (watts per channel)Output power: 400 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -140 dB, 300 ohms, 100 mW: 0.000010%THD: -130 dB, 32 ohms, 1 mW: 0.000032%THD: -130 dB, 32 ohms, 100 mW: 0.000032%THD: -122 dB, 16 ohms, 1 mW: 0.000080%THD: -122 dB, 16 ohms, 100 mW: 0.000080%IMD: -123 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000071%IMD: -124 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000063%Crosstalk: -127 dB, 300 ohms: 0.000045%Noise (A-wt): 2.4 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB), selectable via front switchOutput impedance: < 0.1 ohms Single-Ended Output Output power: 3000 mW, 16 ohms, <1% THD (watts per channel)Output power: 1800 mW, 32 ohms, <1% THD (watts per channel)Output power: 200 mW, 300 ohms, <1% THD (watts per channel)Output power: 100 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -135 dB, 300 ohms, 100 mW: 0.000018%THD: -135 dB, 32 ohms, 1 mW: 0.000018%THD: -133 dB, 32 ohms, 100 mW: 0.000022%THD: -130 dB, 16 ohms, 1 mW: 0.000032%THD: -125 dB, 16 ohms, 100 mW: 0.000056%IMD: -117 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000141%IMD: -125 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000056%Crosstalk: -90 dB, 300 ohms: 0.003162%Noise (A-wt): 1.2 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB), selectable via front switchOutput impedance: < 0.05 ohms

Drop Plus THX AAA 789 Linear Amplifier. Used, fully working. Neutral, clean, detailed, achromatic sound.

Drop Plus THX AAA 789 Linear Amplifier. Used, fully working. Neutral, clean, detailed, achromatic sound.

Drop Plus THX AAA 789 Linear Amplifier. Excellent condition, comes with original box and power adapter. US Shipping only.