Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 19 - Jun 24
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Description
SY Electronics 3A-40W 40W Power Amplifier - SY-3A-40WDescription Specifications SY Electronics 3A 40W 40W Power Amplifier SY 3A 40W SY 3A 40W is a 40W 70 100V Speaker Line output driver, with 3 Audio inputs + Microphone Line with Mixer. Inputs This Mono Amplifier accepts various input types. Analogue L+R analogue inputs via a 3. 5mm TRS Jack and also RCA inputs. Digital Audio Digital audio via an S PDIF Optical input. Microphone Line A Microphone input is complimented by switchable 48v phantom power and
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 873 reviews
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Product Reviews
★★★★★ 5
Great replacement heart for bear toy
Many years ago I bought a Heart to Heart Bear (1980s)--with a heartbeat. After several years the heart stopped working, but I kept the bear--thinking that some day I could fix it. Last Saturday I replaced the original heart with this heartbeat toy and now she works great! The heart is not too loud and the fact that I can start and end it without opening the bear is great. I am going to buy another one as back-up just in case this one stops working. Thank you.
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Reviewed in the United States on November 13, 2024
★★★★★ 1
Can’t get it open.
We CANNOT get the screw out to put in batteries! Can you send me another?
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Reviewed in the United States on November 15, 2025
★★★★★ 5
Calming with a pulse
I bought these to transport puppies across the US. I put one in each carrier and the puppies slept on each plane ride. A total of over 5 hours on planes. Would totally recommend.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great job
A+
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Reviewed in the United States on February 16, 2026
★★★★★ 3
Have to manually turn off-no timer
Just okay. It works, but my other units are on a timer and turn off themselves. This doesn’t shut off unless I manually turn it off so the batteries don’t last.
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Reviewed in the United States on May 6, 2026
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