RBH Sound Hits the Brown Note 21" Subwoofer Review!

RBH Sound’s Unrivaled 21-SF/R is a 370+ lbs. monster that uses a 21” carbon fiber driver powered by a 4,000 watt amplifier. This bruiser is so powerful that it forced us to create a whole new category of performance for our Bassaholics room rating called Maximus. I discuss how this subwoofer has forever changed my music and home theater experience. Infrasonics are for real and if you're a bassaholic like me, you won't want to miss this video!

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Read our Review of the RBH Sound 21-SF/R Subwoofer:
https://www.audioholics.com/subwoofer...

🛒 RBH Sound 21N-SF/R: https://bit.ly/RBHSound21SFR
🛒 RBH Sound 12P-SF/R: https://bit.ly/RBH12PSFRsub

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👉 Book your FREE custom home theater design service NOW: https://bit.ly/HTDesign

• MadVR Envy MK2: https://bit.ly/MadVREnvyMK2
• Kaleidescape Terra Prime HDD: https://bit.ly/KscapeTerraPrimeHD
• Kaleidescape Package Deals: https://bit.ly/Kscape-bundle

Recommended Subwoofers:
🛒 RBH Sound 21-SF/R: https://bit.ly/RBHSound21SFR
Perlisten D15s: https://bit.ly/PerlistenD15s
Perlisten R212s: https://bit.ly/PerlistenR212s
Perlisten R210s: https://bit.ly/PerlistenR210s
Perlisten R18s: https://bit.ly/PerlistenR18s
Arendal 1723 1S Sub: https://bit.ly/Arendal17231Ssub

Recommended AV Separates
Trinnov Altitude 32: https://bit.ly/TrinnovAltitude32
Trinnov Altitude 16: https://bit.ly/TrinnovAltitude16
Trinnov Amplitude 16: https://bit.ly/TrinnovAmplitude16
Trinnov Amplitude 8: https://bit.ly/TrinnovAmplitude8
Storm Audio ISP Elite MK3 Processor: https://bit.ly/StormISPEliteMk3
Storm Audio PA16 Amp: https://bit.ly/StormPA16mk3
Marantz AV 10: https://bit.ly/MarantzAV10pre
Marantz Amp 10: https://bit.ly/MarantzAmp10amp

Recommended AV Receivers:
AudioControl XR8S: https://bit.ly/AudioControlXR8S
Marantz Cinema 30: https://bit.ly/MarantzCinema30

Recommended Speakers:
Perlisten S7t Limited Edition: https://bit.ly/PerlistenS7tLE
Perlisten S7t: https://bit.ly/PerlistenS7towers
Perlisten R7t: https://bit.ly/PerlistenR7t
Perlisten R5t: https://bit.ly/PerlistenR5t
Perlisten S3ic: https://bit.ly/PerlistenS3ic
Perlisten R3ic: https://bit.ly/PerlistenR3ic
RBH Sound SI-760/R: https://bit.ly/RBHSoundSI760R
RBH Sound SI-815/RL: https://bit.ly/RBH815RL-ceiling

00:00 - Intro
01:10 - 21-SF/R construction
02:22 - General measurements
04:01 - How does RBH keep the cabinet stable?
04:52 - Subwoofer weight & customization
06:20 - Amplifier options
06:57 - Implementing the 21-SF/R with other subs
08:08 - Music listening results
09:09 - Movie listening results
10:58 - Why go sealed at this level?
11:19 - Entry price
12:21 - DSP functionality is amazing

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