Overall loop response design, each channel with a 12AX7 tube for voltage amplification, DAN1 connects cathode follower as signal buffer to get low output resistance. 6Z4 rectifier tube is used in high pressure parts.

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Sign Up Now ! Nobsound HiFi 12AX7 Vacuum Tube Preamp 2.0 Channel Home Stereo Audio Amp Item description Introduction:

• Overall loop response design, each channel with a ECC83S tube for voltage amplification, DAN1 connects cathode follower as signal buffer to get low output resistance. 6Z4 rectifier tube is used in high pressure parts.

• HiFi clear sound: the treble is delicate and not harsh, the midrange is warm and the bass is full. The vocals are natural and delicate, the strings are smooth.

• High-end Materials:

Japan ALPS27 potentiometerAmerican CMC gold-plated RCA terminalsAll high-grade aluminum alloy chassisPhilips, WIMA high voltage capacitorUS military specification DALE resistorJapan KOA series gold plated pin tube sockets

• Dimensions(W*H*D): 202 * 80 * 282 mm

• Working voltage:110V-115V / 220V-240V

Packing List:

• 1*Tube Preamp
• 1*Power Cord

Payment Delivery details Return Policy About us Contact us Payment Safe and secure payment by PayPal.
Delivery details Please leave VALID TELEPHONE NUMBERwhich is necessary and very important.Customs Clearance
We are NOT responsible for any customs duties fee.
We are NOT responsible for any import tax or customs delay.Most item will be shipped within 2 working days. For package less than 2KG, we use Airmail (10-25 days to most countries) and for package over than 2KG we use Expedited Service such as DHL, UPS and FEDEX (5-8 days to most countries).

Return Policy

Free Return Within 30 Days

We provide return within 30 daysfor all items you bought on , full refund and return shipping will be provided.

1-year warrantyis 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. response is very important to us just like our lives, please DO contact us before you leave a neutral or negative response, 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 response or make dispute/claim on our non-working time, thank you for your understanding and cooperation.

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