Audio Amplifier 6j3 Vacuum Tube with HIFI Preamplifier DC Input Bile Buffer Speaker Upgraded for Home Theater DIY
Audio Amplifier 6j3 Vacuum Tube with HIFI Preamplifier DC Input Bile Buffer Speaker Upgraded for Home Theater DIY
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Unbranded

Audio Amplifier 6j3 Vacuum Tube with HIFI Preamplifier DC Input Bile Buffer Speaker Upgraded for Home Theater DIY

|1 rating

Key item features

  • Tube: 6j3(The tube is disassembled)
  • Power supply: DC12-16V, current 1A or more (DC12V 1.5A supply power is recommended)
  • Power socket: DC3.5/5.5 21
  • Product support replace tube: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654 etc.
  • Pre-stage magnification: voltage magnification 5 times

Specs

Brand, UnbrandedPreamplifier type, PreamplifierIn/Out type, RCAMinimum frequency response, 5 HzInputs/Outputs, Audio input: low-level signal input such as mobile phone, CD, computer, TV, MP3, etc. Audio output: connect to power amplifier or active speakersInput/output direction, Input

About this item

Product details

Pre-stage frequency response: 5HZ-500KHZ
Pre-level sensitivity: 3V
Audio input: low-level signal input such as mobile phone, CD, computer, TV, MP3, etc.
Audio output: connect to power amplifier or active speakers
Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use.
Color: random color, don't accept the specified color.
Material: plastic

Package Contents:
1 * Audio Amplifier

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
  • Tube: 6j3(The tube is disassembled)
  • Power supply: DC12-16V, current 1A or more (DC12V 1.5A supply power is recommended)
  • Power socket: DC3.5/5.5 21
  • Product support replace tube: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654 etc.
  • Pre-stage magnification: voltage magnification 5 times
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Brand

Unbranded

Preamplifier type

Preamplifier

In/Out type

RCA

Minimum frequency response

5 Hz

Warranty

Warranty information

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Customer ratings & reviews

4 out of 5 stars
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  2. 4 stars100% (1)
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Showing 1-1 of 1 review

Jun 12, 2025
Reviewer name: Thomas
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Very marginal quality.

When the unit arrived, it contained no instructions, which I had to look up. When I had found the appropriate 12V transformer and plugged it in, I found that the volume knob was glued stuck! I had to break the glue seal with pliers - with fear I would damage the item. Luckily, it works.

Helpful?1568CRGX412914594163265
Current price is $18.95
Price when purchased online
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  • Free Holiday returns until Jan 31
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Sold and shipped by Appliances store
3.997782705099778 out of 5 stars
4 stars out of 5, based on 451 seller reviews(4.0)
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Free Holiday returns until Jan 31

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