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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
For Your Every Summer RSVP, with Code: SUMMER15
Description
1-In 4-Out Front Stereo Signal Amplifier, Independent Output Volume Adjustment RCA Interface No Loss Allocator, US Plug, B029Product description: 1. If you have a line level signal source (TV audio, MP3 player, video game machine, cell phone, tablet, computer, record player, etc.) to output to other devices at the same time (such as power amplifier and speakers or headphones), this product can solve the problem of one set of stereo input, which can allocate four sets of stereo, output independent four sets of volume adjustment function, with each channel output band + 20dB
Product description:1. If you have a line level signal source (TV audio, MP3 player, video game machine, cell phone, tablet, computer, record player, etc.) to output to other devices at the same time (such as power amplifier and speakers or headphones), this product can solve the problem of one set of stereo input, which can allocate four sets of stereo, output independent four sets of volume adjustment function, with each channel output band + 20dB gain.
2. For a powerful signal amplifier distributor, you may need to run several long lines between the TV audio line and a receiver on the other side of the room, providing high gain through any line level signal source, allowing longer cable lines to run, or requiring "buffering" to solve low volume problem. You can use it to add signal amplifiers between the line level signal source and the power amplifier, and the RCA jack matches almost all other product interfaces.
3. This product can increase the sound quality of the control signal and reduce the bottom noise. With a large dynamic range, it will not produce a burst. The output volume is controlled by sensitivity adjustment knob, and DC 12V power supply is adopted to ensure full thrust.
Product parameters:
1. Input impedance: 100K Ohm
2. Input level: +14 dBV
3. Output impedance: 47 Ohm per output channel
4. Frequency response: 20 Hz-20K Hz
5. SNR: Less than 107dB
6. Total harmonic distortion: Above 0.02%
7. Intermodulation distortion: Above 0.01%
8. I/O interface: Stereo RCA
9. Power supply: DC-12V
10. Net weight: 0.31 kg
11. Product weight after packaging: 0.46kg
12. Product size: length 109 mm x width 79mm x height 38 mm
13. Package size: length 185mm x width 135mm x height 65mm
Kit list:
1. 1 in-4 out-front Stereo Signal Amplifier Allocator x 1
2. DC-12V Power Adapter (gauge American) wire length: 100cm
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2270 reviews
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Product Reviews
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great.
This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over.
It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement.
It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way.
Get it. Use it.
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great
Why did you pick this product vs others?:
Fair price for the amount of coverage, good quality
Works well:
Easy to install, rolls out great. Forms to contours well
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Reviewed in the United States on July 13, 2025
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
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Reviewed in the United States on December 29, 2025