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Little Bear T7 Tube Phono Stage RIAA MM Turntable Pre-Amplifier &HiFi AUX Preamp For Sale


Little Bear T7 Tube Phono Stage RIAA MM Turntable Pre-Amplifier &HiFi AUX Preamp
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Little Bear T7 Tube Phono Stage RIAA MM Turntable Pre-Amplifier &HiFi AUX Preamp:
$59.99

This is a new multi-function Preamp designed by Douk Audio and Little Bear, you can used it as MM phono preamp or HiFi Tube Pre-Amplifier. Mini size can give you warm tube sound, alluminum chassis with charming tube light and Hi-end terminal, all of this create her perfect look. Furthermore, her warm tone definitely will give you the amazing music experience.

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Sign Up Now ! Little Bear T7 Tube Phono Stage RIAA MM Turntable Pre-Amplifier &HiFi AUX Preamp Item description Tube CD / MM Phono RIAA Pre-Amplifier
This is a new multi-function Preamp designed by Douk Audio and Little Bear, you can used it as MM phono preamp or HiFi Tube Pre-Amplifier. Mini size can give you warm tube sound, alluminum chassis with charming tube light and Hi-end terminal, all of this create her perfect look. Furthermore, her warm tone definitely will give you the amazing music experience.NOTICE:
  • Phono function Only for MM (Moving-Maganetic Cartridge) turntable only. not support MC truntable.

  • AUX function only for CD or DAC or PC or cellphone or similar player.

Quick guide:
This is HiFi PHONO RIAA and CD multi-function preamplifier.phono RIAAfunction part is I am re-design it refer DENON-AVR-2310CI AV amplifier,there is Very good music replay, sound restore to original. if you had aturntable already, now, it's time to revisit the classic. AUX function is tube buffer function to get the better warm sound, so you can setup T7 work for AUX or phono by input selector....Parameters:

①RIAA phono part:
  • RIAA freq response 20hz-20kHz +/- 0.5dB, S / N ratio> 85dB
  • THD <0.05%, input sensitivity 3.0mV, gain 40dB,
  • Nominal / max output 300mV / 1.8V
  • Output impedance 200 ohms, input 47k ohm / 220 pF
②AUX part:
  • Input voltage: AC12 ~ 18V
  • Frequency response: 20 HZ - 20 KHZ
  • Input sensitivity 300 mv
  • SNR: 96 db
  • Total harmonic distortion <3% (1 KHZ)
  • Power range output: 0.2 W
  • Output impedance: 100K
  • Input impedance: 50K
Default Tubemodel: 6J1 (Can directly replace tube model: 5654,6AK5, EF95 etc.)Chassis size: (W)80 × (D)116 × (H)28 mmNet weight: 0.24Kg (0.55Kg with package)Package includes:
  • 1 x preamplifier
  • 1 x power supply
  • 2 x 6J1 tubes

Q&A about the hum problem

Q: I got a loud hum with this T7 phonopreamp.

A: For the hum noise, in the beginning, wehave to clarified that all phono preamps have a certain of background noise. Itwon't be loud, while a little loud is just normal. Turntable is a kind ofanalog players and cannot be compared with digital players in this respect.Besides, there are many factors which may lead to bad noise. To find the rightreason, you need to do some tests and here are some instructions.

Reason A: T7 isn't connected to groundwell.

This is the most common and unnoticedreason. Please test it following the steps as below.

While the device is playing music, pickingup the GND copper part of T7 with your fingers. If the background noise is muchlower, then T7 isn’t connected to the ground. For this issue, we prepared a 3mwire in the package for you to solve it by yourself. Just use it to connect theGND with any large mental item in your home like windows or mental tables.

Reason B: T7 doesn’t match with youramplifier well.

There is a possibility that T7 may notmatch with some digital amplifiers well, which may lead to very loud noise.,(we’vetest it with few T and D Class digital amplifier. And found that. The T Classamplifier is best. Very quite back noise.. But. The D Class amplifier with loudnoise. )

That’s why we recommend using professionalpure HiFi amplifiers like AV amplifier or vacuum tube amplifiers (it will bebetter if the amplifier isn’t equipped with Bluetooth).

Reason C: The RCA wire has a poor quality.

A good RCA wirewill be equipped with an anti-jamming magnetic ring, which can effectivelyreduce various interference.

Q&A about the sound distortion problem:

Reason A: your turntable output signalisn’t PHONO. Maybe is LINE OUT. Please check the turntable output JACK. ifthere is a PHONO/LINE OUT switch. Please set it in “PHONO’ mode.

Reason B: T7’s RIAA function part broken.Please contact us to get replacement main board. (or if you’re DIYer. You alsocan repalcement it. It’s 80% the OP chip burn. (the IC mode is: 2068, you canrepalce it to 5532 or similar chip.

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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