$219.99 Buy It Now or Best Offer
free,30-Day Returns
Seller Store doukmall
(57934) 99.4%,
Location: Los Angeles, California
Ships to: US,
Item: 256199792780
Restocking Fee:No
Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Type:Tube Pre-Amp
Douk Audio:Douk Audio
Number of Channels:2
MPN:DJ198
Audio Inputs:Stereo L/R RCA
Audio Outputs:Stereo L/R RCA,Analog Audio,Preamp
Color:Silver
Features:Active Amplification,Volume Control
12AX7:12AX7
Number of Inputs:4
Number of Outputs:1
Surround Sound Formats:NO
Supported Modes:NO
Power:NO
Receiver Combo Features:Blu-ray Player,HD-DVD Player
Unit Quantity:1
Unit Type:Unit
Using Japanese original ALPS 16 Type 15mm 100k Duplex potentiometer, switch is produced by Taiwan-funded factory. With 4 groups of RCA audio input, convenient to compare different audio source and no need to plug-in and out the cables repeatedly. Gold-plated terminals to guarantee lossless transmission. 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 ! HiFi Vacuum Tube Preamp 12AX7 2.0 Channel Analog Audio Pre-amplifier DIY KIT Item description Shipping from USA Warehouse, you will receive it within 1-6 bz days. Notice: 1. Not include power cord, please prepare it by yourself. 2. Due to the scarcity of electronic tubes and the instability of inventory, the actual shipment will be replaced with different types of electronic tubes according to the actual situation. All replacement components are of the same level, and there is no difference in function and effect. Please understand. If you mind, please do not buy. 3. The circuit diagram sent is for reference only, please refer to the actual product, if you have any questions, please feel free to contact us, we are glad to help you. Parameters: AC power supply: 100V-240V Audio Input: 4 groups * Stereo L/R RCA Audio Output: RCA Frequency Response: 10-26kHz (+/- 0.11dB), about 15 times voltage amplification Total Harmonic Distortion: 0.078% Signal to Noise Ratio: 99dB Input impedance: 100k Ouput impedance: 10k Gain: about 11dB Chassis Dimensions: 320mm*170mm*50mm Weight: 4KG Features Using Japanese original ALPS 16 Type 15mm 100k Duplex potentiometer, switch is produced by Taiwan-funded factory. With 4 groups of RCA audio input, convenient to compare different audio source and no need to plug-in and out the cables repeatedly. Gold-plated terminals to guarantee lossless transmission. Using 0.8mm stainless steel CNC punching chassis, its SNR up to99dB, the background is extremely clean without any noise. Using WINA MKP10 0.1uf capacitors, 0.39u Swiss RIFA PHE 426 series, IT 2.2uf capacitors, etc. Power transformer uses H360 0.5 piece 76 * 40 core, especially with double shielding layers GND，grounding line is yellow-green line outlet. A group of filament 3.15v * 2 for 3*12AX7 filament power supply, high-voltage 270V * 2 uses 6Z5P tube rectifier. Amplification circuit using scaffolding of welding. Packing List 1*Full Set DIY KIT of Tube Preamp (optional) 1*Assembled Tube Preamp (optional) 1*Power Cord (only for assembled version) 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
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