{"id":4106,"date":"2013-12-08T12:23:32","date_gmt":"2013-12-08T12:23:32","guid":{"rendered":"http:\/\/www.audioexcite.com\/?p=4106"},"modified":"2013-12-08T16:28:30","modified_gmt":"2013-12-08T16:28:30","slug":"sb-acoustics-tweeter-measurements","status":"publish","type":"post","link":"https:\/\/www.audioexcite.com\/?p=4106","title":{"rendered":"SB Acoustics Tweeter Measurements!"},"content":{"rendered":"

\"SB26STAC-C000-4_1\"<\/a>\"SB26STCN-C000-4_1\"<\/a><\/p>\n

These two SB Acoustics tweeters are the first in a series of new driver measurements I will publish on the website. I will probably use some of them in future moderately priced loudspeaker designs.<\/p>\n

Detailed measurement data:<\/p>\n

SB Acoustics SB26STAC-C000-4<\/a>
\nSB Acoustics SB26STCN-C000-4<\/a><\/p>\n

SB26STAC vs. SB26STCN comparison:<\/span><\/h3>\n

 <\/p>\n

Build quality and looks:<\/strong><\/p>\n

The SB26STAC with its aluminium faceplates both looks and feels more robust than the SB26STCN plastic faceplate and its small Neodymium magnet. At this price level, 44$ for the\u00a0SB26STAC and 35$ for the\u00a0SB26STCN, they both seem to be very nicely built.<\/p>\n

Impedance:<\/span><\/h3>\n

 <\/p>\n

\"Imp<\/a><\/p>\n

(click on picture to zoom)<\/p>\n

Green = SB26STAC
\nBlue = SB26STCN<\/p>\n

The SB26STAC has a resonance frequency of 750Hz and the SB26STCN about 170Hz at 920Hz. Both are very close to the manufacturer specification. The Impedance profile is very similar from 2.5kHz and up.<\/p>\n

Frequency:<\/span><\/h3>\n

 <\/p>\n

\"Freq<\/a>\"Freq<\/a><\/p>\n

(click on picture to zoom)<\/p>\n

Left: On-axis
\nRight: 15deg off-axis<\/p>\n

Blue = SB26STAC
\nRed = SB26STCN<\/p>\n

Note!<\/strong> SPL is normalized to roughly the same sensitivity<\/p>\n

The tweeters have almost identical frequency response curves. The SB26STCN has about 0.5-1dB higher sensitivity than the SB26STAC.<\/p>\n

Distortion:<\/span><\/h3>\n

 <\/p>\n

\"SB26STAC-C000-4-2R<\/a>\"SB26STCN-C000-4-2R<\/a><\/p>\n

(click on picture to zoom)<\/p>\n

95dB @ 1m<\/strong><\/p>\n

Left = SB26STAC
\nRight = SB26STCN<\/p>\n

The SB26STAC has lower distortion than the SB26STCN. A qualified guess is that the SB26STAC can be crossed over lower, at least 500Hz or more than the SB26STCN.<\/p>\n

Summary:<\/span><\/h3>\n

 <\/p>\n

The SB26STAC would fit nicely with mid-woofers up to 6.5\u201d and the SB26STCN would fit nicely in M-T-M configurations or in small compact mini monitors with a mid-woofer size up to 5\u201d<\/p>\n

Based on the measurements performance I consider both these tweeters to be of high value and with a high performance\/price ratio. It will be interesting to see if they also sonically turn out to be as good as the measurements.<\/p>\n","protected":false},"excerpt":{"rendered":"

These two SB Acoustics tweeters are the first in a series of new driver measurements I will publish on the website. I will probably use some of them in future moderately priced loudspeaker designs. Detailed measurement data: SB Acoustics SB26STAC-C000-4 SB Acoustics SB26STCN-C000-4 SB26STAC vs. SB26STCN comparison:   Build quality and looks: The SB26STAC with […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-4106","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/4106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4106"}],"version-history":[{"count":5,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/4106\/revisions"}],"predecessor-version":[{"id":4117,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/4106\/revisions\/4117"}],"wp:attachment":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}