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.
Introduction 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 4-8? 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. 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. Douk Audio H7PRO TPA3255 Digital Amplifier w/VU Meter 300W Home Stereo Power Amp. H7PRO is a mini digital amplifier designed by Douk Audio, combining a compact design with exceptional performance. Compact but output strong power: H7PRO features the TPA3255 high-end digital class D amp chip, max power output of per channel can up to 300W, it can effortlessly drive 4-8? Speakers, delivering impressive sound quality. Its compact size makes it suitable for various applications, from bookshelves and desktop setups to home theaters. Dual VU meter design and balance control: based on H7 and after collecting lots of helpful advice from our users, H7PRO designed with dual VU meters for left and right channel that dynamically swing with changes in the audio signal. The independent volume control of the L/R channel is removed and the balance control is added to adjust the balance volume of the left and right speakers for a more even and natural sound. Dual analog inputs and preamp output: H7PRO combines a minimalist design with exceptional function. Besides standard RCA input, also with a balanced XLR input to minimize interference and reduce noise floor. H7PRO also features its preamp RCA output, another amplifier and active speaker/subwoofer can be connected to build 2.1 or multi-channel home theater systems. Audiophile-grade components and sound: H7PRO adopts Japanese ELNA and Rubycon filter array, professional audio inductors and all-sealed precision potentiometer etc. With an SNR of up to 110dB and ultra-low noise floor to deliver exceptional clarity and low distortion. Traditional design but with enough heat dissipation area to ensure optimal performance and long-time stable working. Refined craftsmanship and attractive appearance: CNC-machined, customized all-aluminum alloy construction, ensuring both longevity and a luxurious feel. VU meters to show the volume in real-time, harmoniously combine retro charm with contemporary design, let us experience a HIFI musical journey through time via Douk Audio H7PRO. The RCA output is pre-amplified, its output level and the speaker jacks output are controlled by the main volume synchronously. There are two sensitivity adjustments for two VU meters on the bottom of H7PRO, one is responsible for the left channel and another is for the right. Audio input: single-ended RCA / balanced XLR. Audio output: banana speaker jacks / stereo RCA. Matched speaker impedance: 4-8? Frequency response: 20Hz-20KHz (±0.8dB). Max output level of RCA: 2V. Working voltage: DC 24-48V. Dimensions(WDH): 16712642mm / 6.574.961.65in. Package dimensions(WDH): 31024070mm / 12.209.452.76in. Net weight: 803g / 1.77lb. Package weight (with 32V power adapter): 1.42kg / 3.13lb. Power Output Table of H7PRO. 1×DC 32V Power Adapter (optional). 1×DC 48V Power Adapter (optional). 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.
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.
Mono design, internal power board array filter, low noise. This amplifier with perfect speaker protection circuit. It can protect your expensive speaker from the impact sound when power on /off. All parts are brand new and original, and the high-power Transistors are brand new original ONSEMI MJ15024. LM301A is imported from NS. All resistors use genuine metal film resistors with copper feet, 1% accuracy, including high-power resistors. The inductance is manually measured by a precision digital bridge, accurate to 0.01UH 0.1%. Use customized 100W OFC pure copper toroidal transformer with iron core imported from Japan. Sandblasted pure copper RCA+ gold-plated crystal terminal. Works voltage: AC 115V or 230V. Front panel color: Black/Silver. Output Power: 75W at 8ohm load. Package weight: About 4kg. Mono Class AB QUAD-405 Power amplifier X1. NOTE: We do not provide any cables.
Working method: Class AB Quiescent current: 30mA Output Power: 100W+100W/6? , distortion 0.4% Frequency response: 20Hz to 50KHz Dynamic range: >100 dB Audio input :RCA and Bluetooth Work voltage:AC115V and AC230V optional Machine size: 172100268MM Machine weight: 6.2KG. Finished amplifier x1 not included AC power cord.
Mono design, internal power board array filter, low noise. This amplifier with perfect speaker protection circuit. It can protect your expensive speaker from the impact sound when power on /off. All parts are brand new and original, and the high-power Transistors are brand new original ONSEMI MJ15024. LM301A is imported from NS. All resistors use genuine metal film resistors with copper feet, 1% accuracy, including high-power resistors. The inductance is manually measured by a precision digital bridge, accurate to 0.01UH 0.1%. Use customized 100W OFC pure copper toroidal transformer with iron core imported from Japan. Sandblasted pure copper RCA+ gold-plated crystal terminal. Works voltage: AC 115V or 230V. Front panel color: Black/Silver. Output Power: 75W at 8ohm load. Package weight: About 4kg. Mono Class AB QUAD-405 Power amplifier X1. NOTE: We do not provide any cables.
6N2 6P1 5Z4PA Spartan T1 Push-Pull Tube Amplifier 8W+8W Power Amplifier with Meter Finished Product Description: For the tube part, the front tube of this machine adopts 6N2 tube, which is a high U tube with large amplification coefficient and beautiful sound. The rear tube uses 6P1 tube, which is balanced in three sections and has a delightful timbre, which is very pleasing. The combination of these two pipes is perfect. Specifications: Electric cattle: 9660 165W, brand new premium piece1 Output cattle: 6635 15W fever 4+3 winding method, imported Nippon Steel 0.35 Z11 piece2 Chokes: 5725 4H new premium piece1 Electron tube: 6N22 / 6P14 / 5Z4PA1 Output power: 8W+8W Frequency response: 20hz-20khz Output impedance: 4 ohms and 8 ohms Signal to noise ratio: 90db Input sensitivity: 500mv-1000mv Input impedance: 100k? Harmonic distortion: 1% (1khz) Dimensions: 320mm (length) 210mm (depth) 160 (height) Net weight: about 9kg Package List: 1 x Finished Tube Amplifier Note: -This amplifier does not include power cords and audio cables. The amplifier must be connected to the speaker and then powered on, because the amplifier is an output transformer with a load, otherwise it is very easy to burn the output transformer. Usually it cost about 35USD-50USD. Thanks for your understanding. If you receive defective item, please kindly notify us within 14 days.
Use ANEL34 push-pull amplification circuit, with 2 versions: PCB and scaffold welding. Adopts self-bias circuit, no need to worry about grid voltage drop or open circuit voltage loss, which may cause excessive current in the electronic tube and cause the red screen to burn out the machine. Standard with 2PCS 6F1 driving tube, can be replaced by ECF80/6BL8/6? 1N, 4PCS PSVANE EL34 power tubes, can be replaced by 6CA7/KT77. With power tube short circuit detection function, can protect the amplifier. Design switch can use two different driving tubes, and when in U1 gear, 6F1/ECF80/6BL8/6? 1N can be used; when in U2 gears, 6F2/6U8A/ECF802/ECF82/6U8 can be used, which increases playability. Adopts German GAD coupling capacitor, Japanese ALPS potentiometer and other advanced components, with pure c. 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 Push-pull Stereo Audio Power Amp w/VU meter. Default output impedance is 0-4-8-16? , but 16? Is not available. Adopts German GAD coupling capacitor, Japanese ALPS potentiometer and other advanced components, with pure copper gold plated RCA terminal, CNC aluminum alloy shell, beautiful and durable. And a VU meter, warm light can decorate your desktop. Distortion: 0.1%(1W). Frequency response: 5Hz-60Khz (1db). 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.
BRZHIFI STK443 Class AB Power Amplifier HIFI Thick Film Power Amp 25Wx2 Dual Meter Description: This machine is designed for listening to music on home computers, and it is easy to use with portable devices which with Bluetooth function. The casing of the whole machine is made of CNC all-aluminum alloy, and the retro warm-light dual meter adds a touch of atmosphere to music listening. The appearance of the whole machine is exquisite and compact, convenient for placing on the computer desktop. Specification: Working method: Class AB Quiescent current: 60mA Output power: 25W+25W/8? , distortion 0.3% Frequency response: 20Hz to 50KHz Dynamic range: >100 dB Machine size: 26082193mm Machine weight: 4.6kg Package List: 1 x Power Amplifier. Usually it cost about 35USD-50USD. Thanks for your understanding. If you receive defective item, please kindly notify us within 14 days.
Mono design, internal power board array filter, low noise. This amplifier with perfect speaker protection circuit. It can protect your expensive speaker from the impact sound when power on /off. All parts are brand new and original, and the high-power Transistors are brand new original ONSEMI MJ15024. LM301A is imported from NS. All resistors use genuine metal film resistors with copper feet, 1% accuracy, including high-power resistors. The inductance is manually measured by a precision digital bridge, accurate to 0.01UH 0.1%. Use customized 100W OFC pure copper toroidal transformer with iron core imported from Japan. Sandblasted pure copper RCA+ gold-plated crystal terminal. Works voltage: AC 115V or 230V. Front panel color: Black/Silver. Output Power: 75W at 8ohm load. Package weight: About 4kg. Mono Class AB QUAD-405 Power amplifier X1. NOTE: We do not provide any cables.