Using 6H9C as preamplifier voltage amplification, high speed and low distortion, small coupling capacitor capacity and phase shift, fast response, large dynamic, good stability, can faithfully amplify the wide range of CD player signals, reproduce nature sound field. Adopting Shuguang EL34-B as power tube and output 8W+8W. The sound is smooth and delicate, warm and full, the tone is more mellow and sweet, and the expression is stronger. The music rhythm is particularly good, and the sound field is very wide. Using 5U4C as rectifier tube to reduce the current impact, the cathode aging of the side-heating tube can be effectively avoided. High-end components are used such as Japan original 100k ALPS potentiometer, gold-plated crystal binding post, 160W 9650 power transformer that ensures perfect sound quality during large dynamics, H250 7640 0.35 silicon steel sheet output transformer, inductor 7640, 0.33uf coupling capacitor, 2PCS 220uf 63v ELNA cathode capacitor and so on. Output Power: 8W × 2 Harmonic distortion:? 1% SNR:? 89dB Input sensitivity: 600mV -2V Input impedance: 100K? (stereo input) Output Impedance: 4? 8? Frequency response: 20Hz-26KHz Distortion rate:? 0.5% (1kHz) Rectifier tube: 5U4C Voltage amplification tube: 6H9C Power amplifier tube: EL34-B Power Transformers: 96 50 (160W) Output Transformers: -76 40 Choke: (5H) 76 40 Input power: 100V-240V / 50-60Hz Net weight: 9.5KG Package weight: 12kg Dimensions(LWH): 38cm 17cm 16cm Notice: this tube amp need connect speakers whose sensitivity more than 90db, or subwoofers above 6.5-inch to have perfect performance. Finished Tube Amplifier x 1 AC Power Cord x1.
Frequency range: 10HZ-30KHZ (+/-3dB) Signal to noise ratio: 115dB Rated power: 80Wx2 (8 ohms) 150Wx2 (4 ohms) Impedance range: 2 to 8 ohms Harmonic distortion. Finished FM300A amplifier x 1 Not included AC power cord!
The latest production HIFI audiophile power IRS2092 mono digital amplifier board can connect 2 Ohm load. Sound effortless, low-frequency flexible, dynamic class With UPC1237 protection fuction. Independent power supply, Full aluminum chassis CMC816 RCA + Plated crystal terminal Full aluminum feet. Use 2pcs hi-end Vu meter. 2pcs 1000W class D amplifier board +2pcs 1000w power supply board Note: this is a pure Power amp. Please connect with preamp to use it. And before power on, Please first set the preamp at low volume. Work voltage:AC220V and AC110V optional. Note:AC110V PSU board is different Protection circuit voltage: AC12-AC15V. Maximum output power: 1000W / 2? 900W / 4? 600W / 8? Efficiency:> = 90% SNR: 90dB Speaker: 2-4-8? Size:312x425x90mm DWH (Except for RCA and terminals) Net weight:7KG Front Color:Full black. Finished 1000W stereo amplifier x 1 Not included any cables.
Shows normal cosmetic use. Pretty good condition, could use a light detailing/dusting. Comes with power cord. May need new tubes, that’s possible. But it powers on and appears in good condition. I don’t know what model this is.
Features Pure Handmade, stainless steel chassis combined with solid wood panel, very Classic. EL34B tube upgraded to PSVANE brand. Well balanced tone: EL34 gives you outstanding highs & mids when 6H8C brings deep lows. Class A Single Ended Amplifier to reduce distortion;To protect the amp, tube and machine are packed individually. Self-Biasing design; Analog inputs; Output tags for speaker impedance: both 4? & 8? . Nobsound & Douk Audio. Preamp & Phono Stage. DAC & Audio Adapter. Music Spectrum & Clock. Record Player & Turntable Part. Audio Board & DIY Kit. Bluetooth & XLR & MIC. Tube Sound Level Meter. LED Sound Level Meter. Board & DIY Kit. Record Weight & Clamp. 1/8 & 1/4 Stereo Jack Cable. HiFi EL34 Vacuum Tube Amplifier Class A Single-ended Stereo Audio Power Amp 8W×2. The tubes are upgraded to 5Z4Px1 / PSVANE 6SN7x2 / PSVANE EL34Bx2. Many music lovers choose Nobsound NS-03D tube Integrated Amplifier to be the backbone of their audio system or home stereo. The reason is simple: EL34 vacuum tube integrated amplifiers provide unexpected sound quality for you. Integrated Amplifiers combine the engineering and performance of Amplifiers and Preamplifiers into one space saving unit. By sharing a single chassis, integrated amplifiers help reduce the overall footprint of the audio system or home stereo. With the classic tubes matching. +EL34B, Nobsound NS-03D Tube Amplifier brings you firm and full mids, smooth highs and also deep lows. It is perfect for vocals (natural and sweet), strings, pipes and jazz. If you would like a tube amp with balance tone, putting it in your living room to enjoy the pure and clean music with a glass of wine during your leisure time. Pure Handmade, stainless steel chassis combined with solid wood panel, very Classic. Output power: 8W×2(ultra linear connection default). Tubes: 5Z4Px1 / PSVANE 6SN7x2 / PSVANE EL34Bx2. Output impedance: 4? , 8? Distortion:? 1%(1kHz). Input power supply: 110V-120V / 220V-240V/50-60Hz. 35221655mm/13.868.502.17in. Please leave VALID TELEPHONE NUMBER which is necessary and very important. For package less than 2KG, we use. (10-25 days to most countries). And for package over than 2KG we use. (5-8 days to most countries). Free Return Within 30 Days. We provide return within 30 days. Is provided for all items. Man-made damage or misuse. Audio accessories and consumables such as vacuum tubes. If you are satisfied with our products and service please leave a 5-star. Feedback, we will provide better solutions until you are satisfied. Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including. Douk Audio / Nobsound / Little Bear. 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. Improve our customers’ listening experience. 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.
Can greatly improve the sound quality for them. U-disk input supports lossless formats such as APE, FLAC, WAV etc. Besides the speaker output, the 6.5mm headphone jack can easily drive 16-300? Headphones, easy to enjoy HiFi music. High power output: Rated 35W+35W output, easily drives most home passive speakers, and reproduces the details of the sound well. Specially designed with a low-frequency output to connect an active subwoofer to build a 2.1-channel audio system, providing high-quality music for audiophiles. Tube design and Hi-Fi sound: adopt 2PCS 13P1P (can be replaced by 13N1N) tubes and 2PCS 6P16A ca. Nobsound & Douk Audio. Preamp & Phono Stage. DAC & Audio Adapter. Music Spectrum & Clock. Record Player & Turntable Part. Audio Board & DIY Kit. Bluetooth & XLR & MIC. Tube Sound Level Meter. LED Sound Level Meter. Board & DIY Kit. Record Weight & Clamp. 1/8 & 1/4 Stereo Jack Cable. HiFi Vacuum Tube Amplifier Bluetooth 5.0 Receiver COAX/OPT Power Amp USB Player. U-disk input supports lossless formats such as APE, FLAC, WAV etc.. Besides the speaker output, the 6.5mm headphone jack can easily drive 16-600? Headphones, easy to enjoy HiFi music. Sufficient drive power and subwoofer output: Rated 35W+35W output, easily drives most home passive speakers, and reproduces the details of the sound well. Tube design and Hi-Fi sound: adopt 2PCS 6K3P tubes and 2PCS 6P17A for amplification, sounds delicate and smooth, clear and mellow, with warm and vintage light, can decorate your desktop and let your ears drunk in music. Unique appearance: adopt an aluminum alloy body that can suppress mechanical vibration and prevent electromagnetic interference. Independent indicator light, reflects working status in real-time. A retro and sensitive VU meter, auditory and visual double enjoyment, also with user-friendly remote control; with AC 110/220V switcher, very suitable for home desktop system use. 6.35mm headphone output with priority, please make sure the headphone has been disconnected if you want the speaker and low-frequency output. Please note the USB input does not support MAC system. Audio input: Bluetooth 5.0 / Coaxial / Optical / USB(PC-USB/U-disk) / 2 groups of RCA. Audio output: Speaker Jacks / 6.5mm Headphone Jack / Low-frequency output(connect to active subwoofer). Optical/Coaxial sampling rate: 16Bit/48KHz. USB sampling rate: 16Bit/48KHz. USB support max capacity: 128G. Headphone impedance range: 16-600? Dimensions(WDH): 163253175mm / 6.429.966.89in. Package dimensions(WDH): 350220240mm/13.788.669.45in. Net weight: 3.5kg/7.72lb. Package weight: 4.5kg/9.92lb. 1Remote Control(without battery). Please leave VALID TELEPHONE NUMBER which is necessary and very important. For package less than 2KG, we use. (10-25 days to most countries). And for package over than 2KG we use. (5-8 days to most countries). Free Return Within 30 Days. We provide return within 30 days. Is provided for all items. Man-made damage or misuse. Audio accessories and consumables such as vacuum tubes. If you are satisfied with our products and service please leave a 5-star. Feedback, we will provide better solutions until you are satisfied. Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including. Douk Audio / Nobsound / Little Bear. 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. Improve our customers’ listening experience. 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.
Hy AV-280 Hifi Stereo Amplifier Bluetooth Digital Power Amp DAC Rated Power 200W Music Power 1000W. Rated 200W: Music power up to 1000W. DSP digital processing: Professional processing makes it more HiFi. HD return: ARC return is more convenient. Fiber/Coaxial: Lossless sound quality is better. Bluetooth 4.0: High fidelity wireless transmission. U Disk Lossless: Lossless format, listen to music as you like. Microphone input: You can sing at home. Bass output port: Can be connected to an active subwoofer. Small size and big thrust. 2.1 High-definition high-power digital high-fidelity power amplifier. Rated 200W, music power 1000W. Support optical fiber, coaxial input, microphone input. High-fidelity lossless input: Support multiple lossless modes. ARC lossless image quality is more outstanding. Applicable to multiple devices: Connects to TV, HD DVD, game console, projector, CD player, set-top box. Product model: AV-280. Rated power: 200W. Music power: 1000W. Input voltage: AC 110-240V. Maximum current: 4A. Input frequency: 50/60Hz. Adjustment mode: full DSP digital processing mode. Cabinet structure: aluminum panel + galvanized chassis. Sound field mode: 2CH channel volume control/treble & bass adjustment. Operation control: remote control/panel operation. Safety standards: CE, CCC. Frequency response: 20Hz20KHz. Digital input interface: HDMI/optical/coaxial/Bluetooth (PCM format). Analog input interface: stereo AUX/CD/FM/2 microphone input. Output port: HD HDMI output port / auxiliary bass / 2 audio amplifier signal output. Audio decoding: U disk WMA/MP3/FLAC/APE decoding, optical fiber, coaxial DAC decoding. 1 x Set of Power Amplifier. Usually it cost about 35USD-50USD. Thanks for your understanding. If you receive defective item, please kindly notify us within 14 days.
Powerful 4 working modes: A200 can be used as a full-frequency amp or a subwoofer amp, with mono / 2.0 channel stereo mode and full-frequency / subwoofer mode switch, easily to use any combination to build various sound systems and satisfy different demands. Strong compatibility and large output power: Adopt NE5532 op-amp and TPA3250 amp chip, equipped with 32V/5A large power supply, enough to drive 100W full frequency speakers and 160W subwoofers, can match most home speakers. User-friendly design: With a bass frequency adjustment (40-160Hz), easy to get a perfect sound according to your listening preferences; designing a VU meter sensitivity regulator, easy to adjust and match the audio signals of different levels to get better visual effects. Nobsound & Douk Audio. Preamp & Phono Stage. DAC & Audio Adapter. Music Spectrum & Clock. Record Player & Turntable Part. Audio Board & DIY Kit. Bluetooth & XLR & MIC. Tube Sound Level Meter. LED Sound Level Meter. Board & DIY Kit. Record Weight & Clamp. 1/8 & 1/4 Stereo Jack Cable. HiFi Mono/2.0 Channel Digital Amplifier Full Frequency / Subwoofer Power Amp. If you want to use mono channel output, please connect the subwoofer or speaker to the top group of speaker jacks marked PBTL. Connect to 1PC passive speaker. Connect to 1PC passive subwoofer. Connect to 2PCS passive speaker. Connect to 2PCS passive subwoofers. Unique appearance and proper size: Vertical placement design, with retro and elegant VU meter, fashionable and durable solid aluminum chassis, both enjoyment of auditory and visual, very suitable for HiFi home and desktop audio system use. Audio input: Stereo RCA. Audio output: Banana speaker jacks. Max output power of 2.0 channel. Max output power of mono channel. Bass cut-off frequency: 40-160Hz. THD: 0.02%(1kHz, 1W). Input sensitivity: 0.775V. Frequency response: 20Hz-20KHz(±3dB). Net weight: 768g/1.69lb. Package weight: 1.50kg/3.31lb. Dimensions:(WDH): 50137146mm / 1.975.395.75in. Package dimensions(WDH): 30023065mm / 11.819.062.56in. Please leave VALID TELEPHONE NUMBER which is necessary and very important. For package less than 2KG, we use. (10-25 days to most countries). And for package over than 2KG we use. (5-8 days to most countries). Free Return Within 30 Days. We provide return within 30 days. Is provided for all items. Man-made damage or misuse. Audio accessories and consumables such as vacuum tubes. If you are satisfied with our products and service please leave a 5-star. Feedback, we will provide better solutions until you are satisfied. Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including. Douk Audio / Nobsound / Little Bear. 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. Improve our customers’ listening experience. 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.
AMP55 HiFi Bluetooth Desktop Mini Audio Power Amplifier 220V Translinear Current Mode Amplifier Description: – Adopting trans-conductance linear current mode technology with high resolution, wide sound field, accurate positioning, transparent background, objective and rational sense of speed, clear vocal and instrument contours, sound notes in place and outstanding “unwavering” fixation, strong control in mid to low frequencies, neutral and durable tone. Translinear Current Amplifier: – Current mode circuits are circuits that can effectively transmit, amplify, and process current signals. In current mode circuits, current is used as a variable to analyze and calibrate the circuit. The corresponding voltage mode circuit is a circuit that focuses on transmitting, amplifying, and processing voltage signals, and analyzes and calibrates the circuit with voltage as a variable. The theory and technology of current mode have developed rapidly in recent years, with its main characteristics being high-speed transmission and very small distortion. For a long time, people have been accustomed to processing voltage signals while neglecting the processing of current signals. In practice, many devices have current transmission functions, such as BJT and FET, where the transmission signal is a current quantity. So when processing signals, it is not necessary to convert them into voltage. For these devices, using current mode processing method is simpler and more convenient. The main difference between current mode and voltage mode circuits lies in the input and output impedance. Firstly, an ideal voltage amplifier requires an infinite input impedance and zero output impedance. This requirement is beneficial for voltage signal transmission. For an ideal current amplifier, the input impedance is zero and the output impedance is infinite, which is the only way to facilitate the transmission of current signals. Specification: – THD: 0.008% – Output power: 2 x 70W/4ohm, 2 x 50W/8ohm at 1KHz, 10% – Ultra-wide frequency response: 5Hz – 220KHz -3dB – Conversion rate: 350V/us – Size: 197 X 197 X 75mm – Interface: pure copper gold-plated – Bluetooth: V5.0 – Input: support optical, coaxial, digital signal input and HDMI-ARC input – IR remote control: support – Net weight: 3.6kg Package Included: – 1 x Host – 1 x Power Cable – 1 x Bluetooth Antenna – 1 x Remote Control. Usually it costs about 30USD-50USD. Thanks for your understanding. If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.