PJ. MIAOLAI M7 Bluetooth tube front amplifier 6K4 tube HIFI preamplifier can be upgraded to 6J1 GE5654

PJ. MIAOLAI M7 Bluetooth tube front amplifier 6K4 tube HIFI preamplifier can be upgraded to 6J1 GE5654

Marsoni

M251S

$69.99

Get it in 3 business days with 1 day shipping. Friday, May 29

PJ. MIAOLAI M7 Bluetooth tube front amplifier 6K4 tube HIFI preamplifier can be upgraded to 6J1 GE5654Product Description: M7 Feaver electron tube,audio signal input port can connect computer,CD lossless music player,mobile phone,tablet PC,laptop. The audio output port can connect various digital amplifier,active multi media speakers and audio devices. Full aluminum shell,M7 High and low tone adjustment M7 audio input and output port uses thick gold plating,lossless signal transmission. 6J1 electron tube M7 BTM625 bluetooth audio module,CSRA64215

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Strong magnet, looser fit than I like. Once I hang my headphones on the hanger it weighs it down enough to make the tab in the back not do it's job of keeping the base station from slipping out. I squeezed/pinched/bent the plastic together and it is working for now, but the plastic is flexible and I have a feeling I will be doing this again or needing to put some sort of support on the back. It came with a prybar, so I assumed it would be a tighter fit. Not so much.

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Reviewed in the United States on February 19, 2026

Verified Purchase

Marshall

New York, US

★★★★★ 5

Great pickup

Style: Base Station Mount + Headphone Hanger

Works perfectly. Original magnet was a little weak but I got it to worm

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Reviewed in the United States on April 4, 2026

Verified Purchase