SB Acoustics SB29BNC-C000-4 29mm Beryllium dome tweeter w/grille

Manufacturer: SB Acoustics

3 Customer Review(s)

Product ID: SB29BNC-C000-4

$325.40

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Overview

SB Acoustics SB29BNC-C000-4 29mm Beryllium dome tweeter w/grille- 4 ohm- 72mm- 95 dB

SB Acoustics SB29BNC-C000-4 29mm Beryllium dome tweeter w/grille- 4 ohm- 72mm- 95 dB

Spec Sheet PDF

Compact profile, great for autosound!

Beryllium is incredibly rigid (seven times more rigid than Titanium or Aluminum) and is considered one of the best materials in the world for tweeter domes. Extended frequency response past 20 kHz provides exceptional airiness and spatial quality with superb transients and micro-instrumentation. The result is a subtle, detailed, dynamic tweeter with fast response but without the typical harshness of metal domes that can cause listener fatigue. With low resonance, very high output, excellent power handling and protective grille, this tweeter will work equally well for home hi-fi use or for high-end autosound applications.

Beryllium dome for non-resonant high frequency extension
Copper cap on pole piece for reduced voice coil inductance and minimum phase shift
CCAW voice coil for low moving mass
Internal pressure equalization and flow resistor for non-resonant coupling of cavities
Long life flexible lead wires
Inherently shielded neodymium motor system
Compact design
Low resonance frequency

3 Customer Review(s)

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Still More

Reviewed by paulfx@yahoo.com on 05/11/2024

Still loving these. If you want the SQ of electrostatics without the hassle and the output of AMTs without the diffraction, do yourself a favor and get these. Worth every dollar.

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Reviewed by paulfx@yahoo.com on 05/19/2023

After six months of listening, these tweeters still sound, well, they don't have a sound!
Just fantastic.

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Musical, Accurate, and Louder

Reviewed by paulfx@yahoo.com on 11/01/2022

My restored Audio Concepts Sapphire II speakers sounded as new, but for more volume I sawed off the top of another pair and made a second 7" Focal woofer enclosure under the Sapphires. But I could not get another 6dB out of the single Focal T120 tweeter.
Enter the SB29BNC-C000-4. At 95dB sensitivity it's 6 dB higher than the 89dB single Sapphire so no attenuation needed. At 4 ohms though, I had to replace all tweeter caps and coils with roughly double the values, and then tune them. Also added a resonance notch LCR bridge.
The sound is quietly phenomenal. They needed some break-in. After that, they are the best of both cloth and metal diaphragms. They don't really have a sound. Lightning quick transients. Air. Better than the AMT tweeters I have owned. Better than the best of the classic tweeters from the 1990s.
After a week of listening, highly recommended, especially for pre-2000 classic restorations.
A meaty review: https://audioxpress.com/article/test-bench-the-sb-acoustics-sb29bnc-c000-4-tweeter