SKU: 23211609912

1-In 4-Out Front Stereo Signal Amplifier, Independent Output Volume Adjustment RCA Interface No Loss Allocator, US Plug, B029

Sale price$34.16 Regular price$37.95
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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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
One Package Weight 0.49kgs / 1.09lb
One Package Size 19cm * 14cm * 7cm / 7.48inch * 5.51inch * 2.76inch
Qty per Carton 20
Carton Weight 10.50kgs / 23.15lb
Carton Size 40cm * 30cm * 37cm / 15.75inch * 11.81inch * 14.57inch
Loading Container 20GP: 600 cartons * 20 pcs = 12000 pcs
40HQ: 1394 cartons * 20 pcs = 27880 pcs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 23211609912

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C. Stewart
Dallas, US
★★★★★ 5
Product was as described and meet my need for a scale measuring 0.1 g
Color: Black
Product was as described. Works well. I use it for measuring the amount of coffee for my drip coffee maker. I have not done any testing with respect to actual accuracy so cannot comment. But it seems close to the other scale that I have that only measures to the nearest gram. Construction seems good. Nice looking unit.
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Reviewed in the United States on May 12, 2026
M
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Mark Campbell
Louisville, US
★★★★★ 4
Nice scale
Color: Black
Works as expected, nice size. Makes a big difference when adjusting espresso extraction. I haven't used the timer. One improvement for my use would be to move the power switch from the back to the front, on the side or on the control panel.
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Reviewed in the United States on May 5, 2026
J
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Jerry McCamman
Port Orchard, US
★★★★★ 5
accurate scale
Color: Black
great product
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Reviewed in the United States on June 1, 2026
P
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Peter Merritt
Los Angeles, US
★★★★★ 5
Best Mid Priced Scale on the Market!
Color: Black, Color: Black
Hand down the best prices scale for the price. Excellent ability to precisely dial in pour overs. I’ve been waiting a long time for a scale like this to hit this price point.
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Reviewed in the United States on May 16, 2026
A
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amazon user
Alexandria, US
★★★★★ 5
Good
Color: Black
This food scale is accurate, easy to use, and very helpful for cooking and baking.
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Reviewed in the United States on May 13, 2026

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