★★★★★ 5
as decribed
Size: 6 Outlets, Style: Desk Socket - Black
as decribed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
PJ.MIAOLAI A9 6K4 Vacuum Bile Tube Preamplifier NE5532 OP AMP AUX Bluetooth 5.0 USB RCA HIFI stereo Mini headphone Preamp
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
PJ.MIAOLAI A9 6K4 Vacuum Bile Tube Preamplifier NE5532 OP AMP AUX Bluetooth 5.0 USB RCA HIFI stereo Mini headphone PreampParameters: Product number: A9 Color: Blac Working power: DC 12V 1. 5A Frequency Range: 20Hz 20KHz(3dB) Audio input: Bluetooth 5. 0 RCA U Disk Audio output: RCA 3. 5mm headphone port Signal to noise ratio:110dB (when RCA input) Distortion: 0. 05% U Disk Memory:32GB U Disk: MP3 WMA APE FLAC WAV etc Headphone impedance: 6 300 ohm Maximum output power of headphones: 100mW (32 ohm) Input sensitivity: 0. 775V RCA output level: 1,4Vrms High school bass
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4.5 ★★★★★
Based on 946 reviews
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Product Reviews
★★★★★ 5
Doesn't work as advertised.
Size: 6 Outlets, Style: Desk Socket - Black
None of the 4 USB ports were supplying power. The merchant was extremely courteous and apologetic and offered full refund. I received the refund promptly. Merchant cares about their customers' satisfaction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 5
Goes perfectly under my kitchen cabinets
Size: 6 Outlets, Style: Desk Socket - White
Shipped on time super easy to install absolutely love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
★★★★★ 5
Perfect if you need extra plugs
Size: 6 Outlets, Style: Desk Socket - White
Perfect for what I needed.
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Reviewed in the United States on March 4, 2026
★★★★★ 5
Good for DIY projects
Color: Black, Size: 6 FT
Good quality. All works well and seems durable enough and like that it’s easy to replace in future if damaged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
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