Digital Amplifier – Page 7

Digital Amplifier w/Phono Bluetooth HIFI TPA3255 Stereo Audio Amp for Turntables

By |2026-07-23T03:48:55+00:00July 23rd, 2026|

Multiple inputs and higher compatibility: with Bluetooth 5.2/RCA/MM phono inputs, compatible with most audio devices such as turntables, phones, computers, tablets, TVs, CD players etc. Besides banana speaker outputs, a 3.5mm AUX output is added to connect another amplifier or active speaker/subwoofer to build 2.1 or multi-channel audio system. High-quality audio components: with TPA3255 amplifier chip adopted, max output power of each channel reaches 300W, can drive most home passive speakers and delivers exceptional sound quality with low distortion. The QCC304X Bluetooth chip, supporting SBC/APTX/APTX-LL/APTX-HD etc, ensures high-quality, low-latency wireless audio streaming with efficient power use and stable connectivity.

Nobsound Mini Bluetooth DSP Digital Power Amplifier HiFi Stereo Home Audio Amp

By |2026-07-23T09:25:43+00:00July 23rd, 2026|

LATEST VERSION Nobsound NS-10G Pro is the newest update version of our popular NS-10G amplifier. It has better performance and purer Hi-Fi music experience. A great choice for your home audio system.

Mini Mono Channel Subwoofer / Full-Frequency Digital Amplifier Home Audio Amp

By |2026-07-23T03:48:55+00:00July 23rd, 2026|

Shipping from USA Warehouse, you will receive it within 1-6 bz days. Features A WORKING MODE SWITCHER: convenient to use it as subwoofer bass amplifier or full frequency amp, and you can use two Nobsound G2 to drive left and right channel independently, and the mutual interference between the channels is suppressed. GAIN CONTROL: a gain switch on the bottom of the amplifier to allow 4-level of output level setting (20/26/32/36 dB), to keep the sound quality better and not affected by the the resistor part. HIGH-END MATERIALS AND LARGE POWER: Texas Instruments TPA3116 chip, NE5532 op-amp to guarantee no audible noise, 100Wx 1 @2ohm mono channel amp can drive most home passive speaker or subwoofer, bringing HiFi listening experience. Add to Favorites Seller Join newsletter New Arrival Ending Soon View Feedback About Us Contact Us View All Categories Add-on Items US WareHouse Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier Bluetooth Receiver/Transmitter Audio Adapter / Converter Audio Splitter / Switcher Audio Processor Music Spectrum & Clock Record Player & Turntable Part Empty Chassis Power Supply HiFi Speaker Audio Cable Vacuum Tube Radio Communication Audio Accessories Home Feedback Save Seller New Listed Ending Soon Contact us Store Category Add-on Items US WareHouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier Bluetooth Receiver/Transmitter Audio Processor Audio Adapter / Converter Audio Splitter & Switcher Music Spectrum & Clock Audio Player & Turntable Parts Audio Board & DIY Kit Radio Communication Audio Accessories Other Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier Bluetooth Receiver/Transmitter Audio Adapter / Converter Audio Splitter / Switcher Audio Processor Music Spectrum & Clock Record Player & Turntable Part Empty Chassis Power Supply HiFi Speaker Audio Cable Vacuum Tube Radio Communication Audio Accessories Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! Mini Mono Channel Subwoofer / Full-Frequency Digital Amplifier Home Audio Amp Item description Shipping from USA Warehouse, you will receive it within 1-6 bz days. Features A WORKING MODE SWITCHER: convenient to use it as subwoofer bass amplifier or full frequency amp, and you can use two Nobsound G2 to drive left and right channel independently, and the mutual interference between the channels is suppressed. GAIN CONTROL: a gain switch on the bottom of the amplifier to allow 4-level of output level setting (20/26/32/36 dB), to keep the sound quality better and not affected by the the resistor part. HIGH-END MATERIALS AND LARGE POWER: Texas Instruments TPA3116 chip, NE5532 op-amp to guarantee no audible noise, 100Wx 1 @2ohm mono channel amp can drive most home passive speaker or subwoofer, bringing HiFi listening experience. EXCELLENT CORCUIT AND APPEARANCE DESGIN: built-in speakers protection circuit, solid aluminum chassis for long time use; built-in low pass filter for subwoofers with sub frequency control, small simple compact design but practical and powerful. Specification Max Power 100W*1 2Ω Full frequency response 20Hz-20kHz(±3dB) The speaker matches the impedance 2-8Ω THD Output 1W@ 0.03% Working Voltage DC12-24V SNR ≥106dB Input sensitivity 0.775V Dimension D118.5*W98*H33MM Bass cutoff frequency range adjustment 40-300Hz Weight 0.36KG Slope of bass attenuation -12dB Slope Package Size D257*W215*H65MM Packing List 1× Power Amplifier 1× Power Supply This is 100W mono channel power amplifier, if you want 300W please click: LINK Payment Fast Shipping Return Policy About us Contact us Payment Safe and secure payment by PayPal. Fast Shipping The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver. Return Policy Free Return Within 30 Days We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers listening experience. Contact us Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working time Beijing(CN)Monday-Friday09:00 AM - 18:00 AMNew York(US)Sunday to Thursday08:00 PM - 05:00 AMLondon(UK)Monday-Friday01:00 AM - 10:00 AMParis(FR)Monday-Friday02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation. Home Feedback Save Seller New Listed Ending Soon Contact us

100Watt Mini Mono Channel Power Amplifier HIFI Full-range/Subwoofer Digital Amp

By |2026-07-23T09:25:36+00:00July 23rd, 2026|

G4 can be used as full frequency amp or subwoofer amp with the B/M switch to connect different speakers, and with 3.5mm AUX and RCA input to compatible with different audio devices. 2PCS G4 can be used to drive left and right channel independently to avoid mutual interference. Add to Favorites Seller Join newsletter New Arrival Ending Soon View Feedback About Us Contact Us View All Categories Nobsound & Douk Audio Add-on Items US Warehouse UK Warehouse DE Warehouse AU Warehouse Digital Amplifier Tube Amplifier Audio Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Audio Player Music Spectrum & Clock Empty Chassis Record Player & Turntable Part Power Supply Vacuum Tubes Hi-Fi Speakers Hi-Fi Cable Transformer Radio Communication Audio Accessories Other Home Feedback Save Seller New Listed Ending Soon Contact us Store Category Nobsound & Douk Audio Add-on Items US Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other UK Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Record Player & Turntable Part Audio Board & DIY Kit Audio Accessories Other DE Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Aluminum Chassis Record Player & Turntable Part Audio Board & DIY Kit Radio Communication Audio Accessories Other AU Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other Digital Amplifier Multi-Function Mono Channel 2.0 Channel 2.1 Channel 4.0 Channel 5.1 Channel Tube Amplifier DIY Kit Hybrid Amplifier Mini Tube Amplifier EL34 Tube Amplifier KT88 Tube Amplifier 300B Tube Amplifier Other Tube Amplifier Audio Amplifier Mini Amplifier Integrated Amplifier Power Amplifier Audio Board & DIY Kit Preamp & Phono Stage Tube Preamp Digital Preamp Phono Preamp Passive Preamp Audio Board & DIY Kit Headphone Amplifier Mini Headphone Amp Desktop Headphone Amp Portable Headphone Amp Tube Headphone Amp DAC & Audio Adapter Audio Adapter USB DAC Bluetooth Receiver/Transmitter Digital Interface Audio Board & DIY Kit Audio Splitter/Switcher Speaker Switcher Bluetooth & XLR & MIC 2 Way 3 Way 4 Way Multiple Way Audio Processor Guitar Effects Equalizer Audio Mixer Noise Isolator Audio Player Digital Player Record Player CD Player Portable Player Music Spectrum & Clock Analog VU Meter Tube Sound Level Meter LED Sound Level Meter VFD Audio Spectrum LED Clock Nixie Tube Clock VFD Tube Clock IPS Nixie Clock Oscilloscope Tube Clock Board & DIY Kit Other Empty Chassis Small-sized Medium-sized Large-sized Personalized Record Player & Turntable Part Set-up Transformer Record Weight & Clamp Cleaning Kit Scale Gauge Platter Mat Dust Cover Needle Other Power Supply Linear Power Supply Switching Power Supply Power Supply Filter USB Charging Hub Board & DIY Kit Vacuum Tubes Shuguang Tube PSVANE Tube Tube Socket Tube Tester Probe Hi-Fi Speakers Frequency Divider Speaker Unit Hi-Fi Cable RCA Audio Cable 1/8 & 1/4 Stereo Jack Cable Speaker Cable USB Cable Optical Fiber Cable Conversion Cable Dock Cable Other Transformer Toroidal transformer Output Transformer Other Radio Communication Tesla Coil Transmitter & Receiver Signal Generator Antennas & Tuners Shortwave Radios Ham Amateur Radio Audio Accessories Volume Controller Mount Stand Bracket Feet & Pads Op Amp Headphone Current Meter Other Other Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! 100Watt Mini Subwoofer Audio Digital Amp Full-range Mono Channel Power Amplifier Item description Notice: this is mono amplifier, if you want stereo output please buy 2PCS or 3PCS. Features G4 can be used as full frequency amp or subwoofer amp with the B/M switch to connect different speakers, and with 3.5mm AUX and RCA input to compatible with different audio devices. 2PCS G4 can be used to drive left and right channel independently to avoid mutual interference. Adopting 2PCS NE5532 op-amp and TI's TPA3116 chip, output power up to 100W enough to drive passive 3-10 inch full-frequency speakers or 4-12 inch subwoofers, no audible noise even at large power output, upgrade your 2.0 channel audio system to 2.1, providing shocking cinema effects. By combining the stereo(left and right channel) input, first to do signal analysis and frequency processing and then power amplification, the low-frequency filtering will be more pure and power consumption is more efficient. Mini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use. Parameters Audio input: 3.5mm AUX / RCA Audio output: banana speaker jacks Rated power: 100W Peak power : 300W THD: 0.001% SNR: 103dB Speaker impedance: 4-8Ω Matched full-frequency or crossover speaker: 3-10 inch / 10-200W Matched subwoofer speaker: 4-12 inch / 40-200W Frequency range: Subwoofer mode: 20-200Hz Full-frequency mode: 20-20Khz Working voltage: DC 12-24V 5.5mm (-) / 2.5mm (+) Dimensions(L*W*H): 105*85*30mm / 4.13**3.35*1.18in Net weight: 240g / 0.53lb Package weight: 445g / 0.98lb Packing List 1*G4 Mono Amplifier 1*19V Power Supply 1*Manual Payment Fast Shipping Return Policy About us Contact us Payment Safe and secure payment by PayPal. Fast Shipping The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver. Return Policy Free Return Within 30 Days We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers listening experience. Contact us Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working time Beijing(CN)Monday-Friday09:00 AM - 18:00 AMNew York(US)Sunday to Thursday08:00 PM - 05:00 AMLondon(UK)Monday-Friday01:00 AM - 10:00 AMParis(FR)Monday-Friday02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation. Home Feedback Save Seller New Listed Ending Soon Contact us

Ampapa D1 Bluetooth Amplifier HIFI Stereo Audio Amp w/Digital VU Meters HPF 300W

By |2026-07-23T03:48:54+00:00July 23rd, 2026|

Ampapa × Douk Audio Collaboration: Built on the acclaimed Douk Audio A5 amp, the D1 retains core features like TPA3255 chip, HPF, PRE-OUT, socketed op-amps—now upgraded with digital VU display, TRS balanced input, Bluetooth 5.2, treble/bass control, remote and more for next-gen HiFi performance. Digital VU Meters with Retro Soul: D1 features a vibrant OLED screen that merges classic aesthetics with modern utility. Enjoy 7 VU styles in classic yellow, blue, or black and view real-time feedback of all operations and playback. Both stylish and functional, it brings your music to life. .

Mini 2.0 Channel Digital Amplifier Class D Stereo Desktop Audio Amp 100W+100W

By |2026-07-23T03:48:53+00:00July 23rd, 2026|

With independent treble / bass / volume control, you can easily adjust music style that you want. Adopt 2PCS classic TPA3116 chip and offer 100W*2 stronger power, best for bookshelf / computer / desktop speakers, can use Phone/ MP3 player/ DC/ TV/ Echo Dot as input. Super mini size and Simple compact design but practical and powerful.

Stetsom HL1200.4 – 2 Ohms – Car Audio High Line Amplifier 4 Channels HL1200 1K

By |2026-07-23T03:48:53+00:00July 23rd, 2026|

Includes: 1x HL1200.4 at 2 Ohms - 4 Channels Car Audio High Line Amplifier TECHNICAL SPECIFICATIONS FEATURES HL 1200.4 – 2 OHMS Number of Channels 4 RMS Power at 2 Ohm 12.6V 4 x 300W RMS RMS Power at 4 Ohm 12.6V 4 x 165W RMS RMS Power at 2 Ohm 13.8V 4 x 320W RMS RMS Power at 4 Ohm 13.8V 4 x 170W RMS Power @ 12.6V Bridge 4 Ohms 2 x 600W RMS Supply Voltage 9 ~ 15V Frequency Response 10Hz ~ 26 KHz Crossover Low Pass 90 Hz Crossover High Pass 90 Hz Signal to Noise > 90 dB Harmonic Distortion < 0,9 % THD Input Sensitivity 0,2 V Input Impedance 14K Ohms Impedance Output 2 Ohms Consumption with Signal Musical 53 A Consumption with Signal Bass 106 A Dimensions (H x W x D) mm 66 x 206 x 216 Weight Kg 1,95 Kg

HIFI 300W Digital Amplifier with Bluetooth Stereo Class D Audio Amp for Speakers

By |2026-07-23T03:48:53+00:00July 23rd, 2026|

Upgraded Features for Versatile Use: The A5 PRO builds on the strengths of the A5, featuring upgraded Bluetooth 5.1 connectivity with a reset button, bass and treble knobs for precise tone adjustments, and a headphone output. It delivers clear, powerful audio, perfect for diverse uses from bedroom movies to desktop setups. Easy Customization with Plug-and-Play Op-Amps: Upgrade your sound effortlessly! Douk Audio A5 PRO includes a tempered glass access panel for quick op-amp replacements, allowing audiophiles to tailor sound profiles without disassembling the unit.

JBL 8 Channel Class D Amplifier Design with Digital Signal Processing DSP4086

By |2026-07-23T03:48:53+00:00July 23rd, 2026|

JBL DSP4086 amplifier Product highlights: Class D Amplifier 6ch differential input 8ch amplified 40Wrms output @ 4ohm / 60Wrms output @ 2 ohm Operating voltage: 8V to 16V Selectable High-level or Low-level audio input Selectable Turn-on modes: 12V, Audio Sense & DC Offset Frequency Response: 10Hz to 22kHz @ -3dB Signal to Noise Ratio: 90dB Signal to Noise Ratio (CEA-2006): 75dB THD+N @ 4-ohm: <1% Input Sensitivity – Low-Level: 680mV to 6V Input Sensitivity – High-Level: 1.6V to 15V Remote Subwoofer Level Control (included) for channels 7 & 8 @ -30dB to +6dB Fuse Rating: 40A Recommended Wire Gauge: 8awg Protection Modes: DC, OVP, UVP, OCP, OTP USB tuning cable, pigtail wiring harness & signal harness, hi-level speaker adapters and mounting hardware included Conformal coated PCB to protect from outside moisture Dimensions: L = 9-3/8” (237.5mm), W = 5-11/16” (144mm), H = 1-15/16” (49.5mm) This unit is manufacturer Refurbished, Unit appears in a brown box, and is guaranteed to work perfectly. Some items may have cosmetic blemishes which will not affect the units ability to operate. This Unit Comes with ALL accessories supplied by the manufacturer and includes a 90 day warranty. Sound of Tri-State's General Shipping Policies: We will ship to anywhere in the continental United States for Free on products indicating free shipping. If you have an APO address, or HI, AK or PR we will need to quote shipping prior to your purchase. Please email via the eBay messaging system and we will be happy to quote your shipping fees. On items that are not indicated as free the shipping rate will be calculated by weight and postal code and can be found using the shipping tab located at the top of the listing. Smaller items less than 1 pound will most likely be shipped via usps first class mail provided they are within measurements. Anything 2-5 pounds will most likely ship via usps priority mail or parcel select provided they are within measurements. Anything over 5 pounds with larger measurement will be shipped via UPS. Please Note: Any items over $400 will be sent signature required and the customer must make themselves available at the shipping address to sign for the package as it arrives. Return Policy Please Refer to the Returns Link at the top of the page for more in depth information regarding returns. General Return Policy: No returns will be accepted without a return authorization, which will be given on a case by case basis at Sound of Tri-State's discretion. Please email us using the Ask Seller a Question Link to obtain a return authorization number. NOTE: Any return that does not have a return authorization number written on the outside of the package will not be accepted. We only ship to the address we have on file. Sound of Tri-State has the sole discretion as to what is warrantied. Also Sound of Tri-State is not responsible for any shipping charges. It is our intention to keep you, the customer happy. With that in mind, we will do our best to repair or exchange the item sent back to us in good faith. For returns made 14 days from date of purchase, payment will be refunded less shipping and handling and up to a 15% restocking fee, if a refund is wanted. The item has to be complete in order to receive a refund. If an item is found defective within 14 days, the customer does not have to pay the restocking fees to receive the replacement unit or refund. After 14 days from your receipt date, defective items may be repaired or replaced at Sound of Tri-State's discretion ( Except Remanufactured products, which are only repaired.) The customer will need to send payment for return shipping and handling . The return fee is a non-refundable service fee and will not be part of any credit issued. Support/Customer Service Please feel free to contact us for any and all support that you should need. We have trained technicians on staff and ready to help with you with any questions. Office Hours: 10AM - 5 PM East Coast Time We encourage you to use email for all communication so we have a record on file. We are open Monday to Friday from 10 a.m. to 5 p.m. EST ( Eastern Standard Time ). Sales, Payments, Service, Technical Questions or RMA questions: Please use the eBay "Ask Seller Question" Link

Douk Audio H7PRO HIFI 300W Digital Amplifier w/VU Meter TPA3255 Stereo Power Amp

By |2026-07-23T03:48:52+00:00July 23rd, 2026|

H7PRO is a mini digital amplifier designed by Douk Audio, combining a compact design with exceptional performance. Adopting a TPA3255 amp chip, the power output up to 300W for each channel can effortlessly drive 4-8Ω speakers, delivering impressive sound quality. With single-ended RCA and balanced XLR inputs, preamp RCA output besides speaker jacks output, easily to build multi-channel systems. Two VU meters are added with pointer swinging in real-time with audio signal changes, to get both auditory and visual enjoyment.

Previous 5 678 9 Next