Upgraded 6K4 Tube Preamplifier Amplifier HiFi Tube Preamp Auido Sounds Amp Board

$17.47 Buy It Now or Best Offer
free,30-Day Returns

Seller Store alice1101983
(570939) 99.5%,

Location:
Ships to: US,
Item: 404563667213

Condition:New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is … Read moreabout the conditionNew: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller’s listing for full details. See all condition definitionsopens in a new window or tab
Unbranded:Unbranded
Type:Preamplifier
Upgraded 6K4:Upgraded 6K4
UPC:Does not apply
EAN:Does not apply
Marke:Markenlos
Modell:Upgraded 6K4
Produktart:Vorverstärker

eBay Visit store Items for sale About us Product Details Product Features: 1. High-quality materials, experience enhanced audio fidelity, restore true sound 2. Stable product performance, upgraded for a variety of models of bile ducts 3. Preamplifier frequency response 5HZ-500KHZ, as long as your ears can hear the frequency through the preamplifier is also the same as can be heard 4. The preamplifier has a toggle switch with three adjustable stages, which you can freely adjust according to your own preferences and audio settings. 5. Wide range of applications, support any low-level signal input. Parameters: Power supply: DC12-16V Current: ≥1A 1. This line uses the DC boost line power supply DC12V can be boosted to more than 120V power supply; single DC12V1A (DC12V1A), the current is not limited, the voltage does not exceed 16V preamplification; voltage amplification 5 times, amplification is a little big, hear the distortion can be reduced in moderation volume 2 preamp working condition: full-frequency output, full-frequency output does not exist there is a lack of any frequency, if you hear the high and low frequency which is less, please check your equipment preamp sensitivity: up to the effective 3V is not distorted! 3. Tube preamplifier is a class A amplification state (that is, the preamplifier is always amplified state), the signal line is recommended to use the line with shielding, otherwise it may produce interference with the sound and so on! Instructions for use: 1. Locator with switch: twist the knob clockwise to “tick” a light, which is the smallest volume, continue to clockwise twist to increase the volume! 2. Tube filament: tube to be inserted into the end, boot to see the tube filament light red, note that the backlight is also red, to tube filament light machine only operation 3. audio output input: close to the power connector side is the output, the output should be connected to the amplifier or active speakers, the input to the audio source: such as mobile phones, CDs, computers, TVs, MP3 and other low-level signal input 4.DC input, using DC3.5/5.5*2.1 socket 5. Left and right channel inputs are audio signal inputs, which can be connected to low-level signal inputs. 6. The left and right channel outputs are audio signal outputs, which can be connected to the audio signal inputs of amplifiers or active speakers. 7. Before this stage with amplification function, if your audio source itself with noise, it will amplify the noise that comes with the audio source, so please use a good audio source to test. 8. The product we have been rigorously tested to ensure that there is no problem before the issue of the machine does not come with the noise, if you encounter the above problem can be excluded from the test method Package list: Preamplifier * 1 Payment Method Shipping Policy Returns & Refund Policy Feedback Payment Method EBAY Managed Payment. But we only Accept your Ebay Address, please Make sure it’s 100% right. Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can’t take a refund. Returns & Refund Policy All package need to wait 30 days(US only need 7-10 days),Please take care it.Less than 30 days,we can’t take a refund. If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it. If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

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