Biggest battery powered portable speaker look inside

Biggest or Best ? ? ? Or just Big portable battery powered QTX QR15PA 15 inch PA speaker look inside video + first look. What's inside loudspeakers - speakers? This QTX QR15PA 15" 100W Portable PA System speakers with Wireless microphones cost around 500$ pair. The sound more then good for this price, very good sound music dB SPL, about 110dB at 1m. Of course they are huge size, bad build quality and a lot of buttons. This can be one of Loudest Bluetooth portable Speakers. 15 inch 380mm speaker can give a lot of bass and sound pressure. Some alternative on market are MONACOR TXA-800, IBIZA PORT15, Alto Transport 12 , qtx qr12pa, qtx qr10pa, LD Systems Road Jack 10, Samson XP106, Behringer MPA100BT or from hi-fi home audio - jbl portable speaker - JBL Charge 3, JBL Xtreme or JBL Flip 4.

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Newest JBL Partybox on Amazon:
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QTX QR15PA speaker on Amazon:
- UK https://amzn.to/2EfVfNg
- DE https://amzn.to/2EgjzyO

QTX QT15 pa speaker specification:

- Power supply: 220Vac or 12Vdc 7.2AH nternal battery
- Main driver: 38cm (15” inch)
- HF unit: 2.5cm (1” inch) titanium compression driver
- VHF mic frequencies: 174.1MHz + 175.0MHz
- Output power: 50W + 50W (LF + HF)
- Battery life: Up to 8 hours
- Dimensions: 685 x 440 x 380mm
- Weight: 18,4kg

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[-] Hазвание видео RU: Большой Портативная акустика QTX QR15PA 15-дюймовый динамик с аккумулятор PA смотреть внутри видео. Что внутри громкоговорителей - динамики? Для тех, кто любит потяжелее!

[-] Video nosaukums LV: portatīvā bezvadu tumba - skanda QTX QR15PA ar bezvadu mikrofoniem - ieskats iekšā un pirmais izskats

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(0) DIY guides: https://www.youtube.com/watch?v=MB0njxQm2fM&list=PLwiSkdgFgik7CvkMgw6pm4vm8iW2pZPYt

(0) Headphones dB/SPL sound tests: https://www.youtube.com/watch?v=_rtax-9KXoE&list=PLwiSkdgFgik6nqlkYgtxoyUo2SdCKgOgI

(0) Tests and some entertainments: https://www.youtube.com/watch?v=XbECmby8cug&list=PLwiSkdgFgik5vqneZAB0uaNMtYqd3_xLx

(0) Unboxings: https://www.youtube.com/watch?v=O9AIEE8Pr8c&list=PLwiSkdgFgik4Ecs876nyqL50ruIW61VXp
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