6J9 Tube USB Decoding Ear Daring Preamp Machine HIFI Audio Amplifier Preamplifier
Ship From: China Warehouse
Dispatch: Ships within 1-3 business days
Estimated Delivery: Between
FREE SHIPPING & EASY RETURNS
The original 6J9 tube is used, and the USB decoding uses PCM2706
The main filter capacitor adopts the original imported electrolytic capacitor, and the coupling capacitor adopts the imported Weimar capacitor 3.9UF
The resistance uses five-ring 1% metal resistance to ensure a good signal-to-noise ratio of the whole machine.
PCB adopts a 1.6mm thick double-sided board, 2.0 oz copper thickness, and a full tinning process to ensure the good passing performance of large and small currents. First-class PCB quality.
The input and output adopt a gold-plated RCA lotus seat, which is durable and beautiful.
This board has reasonable wiring, a beautiful appearance and low current noise
Power supply: DC12V2A (direct current)
Net weight: 0.2KG
Size: length 120*width 74.5*height 34MM (excluding tube height)
1. This finished machine is a pre-amplifier, not a power amplifier, it should be used with a post-amp or active speaker. Don’t directly connect passive speakers, speakers, earphones as power amplifiers; it can’t be used in cars, because the car’s voltage is unstable and it will burn out.
2. In general, poor audio cables or power supply filters have a very high probability of causing noise at the bottom of the current. It is recommended to use a good audio cable or power supply.
3. Make sure that there is no problem with your sound source. The preamplifier itself has a preamplifier function. If the sound source itself is noisy, the preamplifier will only amplify the noise. Please use a good sound source to test.
4. Check whether the electron tube is properly inserted into the base, please insert the electron tube into the base, and be sure to insert the electron tube properly when the power is off.
1 x Amplifier
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When you order from Alexnld.com, you will receive a confirmation email. Once your order is shipped, you will be emailed the tracking information for your order’s shipment. You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:
1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)
|Airmail and Airmail Registered||Area||Estimated Delivery Time|
|United States, Canada||7-25 business days|
|Australia, New Zealand, Singapore, United Arab Emirates||10-25 business days|
|United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland||10-25 business days|
|Italy, Brazil, Russia, South Africa||10-45 business days|
|Other countries||10-35 business days|
|Expedited Shipping||3-10 business days to Worldwide|
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If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.
To return an item, please email our customer service at email@example.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:
HaGiborim St 8
Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.
All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.
After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.
Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.
If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.
Please provide us with following:
1. Photos of the front and back sides of the packaging box;
2. A photo, video or screenshot of the defective item or the defective part of the parcel.
Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.
Warranty & Repair service
If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team and the problem is acknowledged, you can send the items back to us for a repair.
Note: Please be aware, we do not cover the cost of the returns fees in warranty & repair service.