2012年4月29日 · Aura的网站找不到这款扬声器。 但据卖家说，AS4-75-8FR 4寸全频喇叭是优雅公司老款产品，由于生产工艺改进，优雅公司把新一代的四寸全频编号更改为：NS4-194-8A，经过优雅公司的证实， AS4-75-8FR 和NS4-194-8A是优雅的同一种产品，外观上虽然略有不同，但 …

2012年3月22日 · From my search of the NS-4, it looks like things are similar on the Dayton. The Aura's should have a smoother low end FR (less "fish-hook") and be more flexible as to enclosure volume (ported). As a "micro-sub", or mini woofer, without full T/S parameters and simming it, I'm guessing the Aura will out-perform the Dayton.

Subwoofer Aura NS4-255-4D. Diameter 4 inches, Power 20 W. Thiele-Small parameters: frequency of self resonance Fs=57 Hz, equivalent compliance volume Vas=3.8 l...

TM NS4-255-4D 4 inch Woofer l High Excursion l Very Low Distortion l No Stray Magnetic Fields l Wide Bandwidth ... Aura Sound, Inc. 11839 E. Smith Avenue, Santa Fe Springs, CA 90670 562.447.1780 562.447.1788 fax TM www.aurasound.com 3/24/05 Frequency Response (1W, 1m) Author: Amy Sun

2005年7月24日 · The NS4 models a lot nicer in WinISD than the WR125 and is cheaper, $35 vs. $50. It's lower Qts allows a ported design with more output, smoother response, and a much smaller box than the WR125's, whose high Qts gives it a bloated response even sealed.

2006年5月29日 · I'm looking to build a small high resolution mini monitor and i'm thinking of using the Aura NS4 4ohm paired with my Dayton RS28A tweeter. Thinking of a 2khz crossover point... and 3L ported box like madisound suggest. It will be powered by a Sonic Impact 5066 amp. And will have a dedicated sub to fill in the bottom end...

2005年2月25日 · TM Model NS4-255-8A 4” Loudspeaker • High Sensitivity • Ultra Compact Design • NO Stray Magnetic Fields • Wide Bandwidth Nominal Diameter (Ø) . . . . . . . . . . .4 inches (105 mm) Nominal Impedance (Z) . . . . . . . . . .8 Ohms Sensitivity, 1W/1m (E) . . . . . . . . . . .88 dB @ 1 kHz Power Capacity, RMS (Pe) . . . . . . . 3.0 W

2009年6月3日 · Hi, Is it true that NS4 concave alu 4" midwf is out of production?:bawling: Do you know if a new ( better?) 4" is in program ? :rolleyes: Very thanks for comment Cheers, Paolo

2025年2月14日 · 四寸优雅中低单元（很多人都当它是全频，包括美国的专业喇叭销售网站，实际上是中低单元，从下图中的频响曲线就可以看出）：ns4-255-8d 20W，8欧，灵敏度：84 dB，频响：60HZ-6KHZ 频响曲线：下图

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