{"id":6505,"date":"2017-09-22T17:32:25","date_gmt":"2017-09-22T17:32:25","guid":{"rendered":"http:\/\/www.audioexcite.com\/?page_id=6505"},"modified":"2018-12-26T12:33:42","modified_gmt":"2018-12-26T12:33:42","slug":"sb-acoustics-sb17nrxc35-8","status":"publish","type":"page","link":"https:\/\/www.audioexcite.com\/?page_id=6505","title":{"rendered":"SB Acoustics SB17NRXC35-8"},"content":{"rendered":"<h3><span style=\"color: #3366ff;\">Overview:<\/span><\/h3>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-6508\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8.jpg\" alt=\"\" width=\"230\" height=\"372\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8.jpg 465w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-185x300.jpg 185w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/><\/a><\/p>\n<p>The SB Acoustics SB17NRXC35-8 is an 8\u2126\u00a0 6&#8243; mid-woofer from SB Acoustics.<\/p>\n<p>The mid-woofer has a 35.5mm voice-coil with a healthy 11mm (p-p) linear coil travel. It has a very low voice-coil inductance and is fitted with a copper sleeve on the pole piece to ensure a low distortion performance.<\/p>\n<p><strong>Key features:<\/strong><\/p>\n<ul>\n<li>Vented cast aluminum chassis for optimum strength and low compression<\/li>\n<li>Proprietary cone material with natural fibers made in-house<\/li>\n<li>Soft low damping rubber surround for improved transient response<\/li>\n<li>Non-conducting fiber glass voice coil former for minimum damping<\/li>\n<li>Extended copper sleeve on pole piece for low inductance and low distortion<\/li>\n<li>CCAW voice coil for reduced moving mass<\/li>\n<li>Long life silver lead wires<\/li>\n<li>Vented pole piece for reduced compression<\/li>\n<\/ul>\n<p><strong>Note!<\/strong> This driver has been discontinued, but can be found second hand and at some shops!<\/p>\n<p>SB Acoustics Spec sheet: <a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/6in-SB17NRXC35-8.pdf\" target=\"_blank\" rel=\"noopener\">6in SB17NRXC35-8<\/a><\/p>\n<h3><span style=\"color: #3366ff;\">T\/S Parameters:<\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/T-S-parameters-SB17NRXC35-8.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6510\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/T-S-parameters-SB17NRXC35-8.jpg\" alt=\"\" width=\"600\" height=\"478\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/T-S-parameters-SB17NRXC35-8.jpg 691w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/T-S-parameters-SB17NRXC35-8-300x239.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>(click on picture to zoom)<\/p>\n<p>T\/S Parameters measured using DATSv2. Higher Qts and lower sensitivity than the official specification.<\/p>\n<h3><span style=\"color: #3366ff;\">Impedance:<\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Imp-SB17NRXC35-8-1L-vs-2R.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6513 size-large\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Imp-SB17NRXC35-8-1L-vs-2R-1024x530.jpg\" alt=\"\" width=\"720\" height=\"373\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Imp-SB17NRXC35-8-1L-vs-2R-1024x530.jpg 1024w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Imp-SB17NRXC35-8-1L-vs-2R-300x155.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Imp-SB17NRXC35-8-1L-vs-2R-768x398.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Imp-SB17NRXC35-8-1L-vs-2R.jpg 1728w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/a><\/p>\n<p>(click on picture to zoom)<\/p>\n<p><strong>Blue:<\/strong> Mid-woofer sample #1<\/p>\n<p><strong>Green:<\/strong> Mid-woofer sample #2<strong><br \/>\n<\/strong><\/p>\n<p>A small resonance issue around 1.4kHz<\/p>\n<h3><span style=\"color: #3366ff;\">Frequency:<\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><strong>Frequency measurement conditions:<\/strong><\/p>\n<p>The mid-woofer is measured mounted on a baffle in an 14 liter closed enclosure with the following conditions:<\/p>\n<p><strong>Baffle size (WxH):<\/strong> 24\u00d735cm with 18mm round-over on the baffle edges (r=18).<br \/>\n<strong>Driver position:<\/strong> Mounted on center-line with driver unit center 22cm from the top of the baffle.<br \/>\n<strong>Mic position:<\/strong> 1m distance, on mid-woofer-axis.<br \/>\n<strong>Smoothing:<\/strong> 1\/24 octave smoothing applied.<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0deg-1L-vs-2R.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6516\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0deg-1L-vs-2R.jpg\" alt=\"\" width=\"360\" height=\"114\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0deg-1L-vs-2R.jpg 1287w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0deg-1L-vs-2R-300x95.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0deg-1L-vs-2R-768x244.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0deg-1L-vs-2R-1024x325.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-15deg-1L-vs-2R.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6517\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-15deg-1L-vs-2R.jpg\" alt=\"\" width=\"360\" height=\"114\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-15deg-1L-vs-2R.jpg 1287w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-15deg-1L-vs-2R-300x95.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-15deg-1L-vs-2R-768x244.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-15deg-1L-vs-2R-1024x325.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><\/p>\n<p>(click on picture to zoom)<\/p>\n<p><strong>Left:<\/strong> Frequency response on-axis (Blue=sample#1 Red=sample#2).<br \/>\n<strong>Right:<\/strong> Frequency response 15deg off-axis (Blue=sample#1, Red=sample#2).<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0-15-22deg.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6520\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0-15-22deg.jpg\" alt=\"\" width=\"720\" height=\"229\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0-15-22deg.jpg 1287w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0-15-22deg-300x95.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0-15-22deg-768x244.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-0-15-22deg-1024x325.jpg 1024w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/a><\/p>\n<p>0deg = Blue<br \/>\n15deg = Red<br \/>\n22.5deg = Green<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-30-45-60deg.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6521\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-30-45-60deg.jpg\" alt=\"\" width=\"720\" height=\"229\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-30-45-60deg.jpg 1287w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-30-45-60deg-300x95.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-30-45-60deg-768x244.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/Freq-SB17NRXC35-8-30-45-60deg-1024x325.jpg 1024w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/a><\/p>\n<p>30deg = Blue<br \/>\n45deg = Red<br \/>\n60deg = Green<\/p>\n<p>Smooth frequency response up to 3kHz. The highest suitable cross-over frequency is around 2-2.5kHz.<\/p>\n<h3><span style=\"color: #3366ff;\">Distortion:<\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><strong>Measurement setup:<\/strong><\/p>\n<ul>\n<li>Mid-woofer near-field measurement at 18cm<\/li>\n<li>Frequency Range Mid-woofer: 200-10000Hz<\/li>\n<li>Baffle size WxH: 24\u00d735cm<\/li>\n<\/ul>\n<p>The distortion measurements are done in near-field and the amplifier output level was adjusted for each driver so that the fundamental is 90dB and 95dB at 1m. This setting simulates medium-high and high listening levels.<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-90db.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6524\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-90db.jpg\" alt=\"\" width=\"360\" height=\"196\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-90db.jpg 1404w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-90db-300x164.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-90db-768x419.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-90db-1024x559.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-90db.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6526\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-90db.jpg\" alt=\"\" width=\"360\" height=\"196\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-90db.jpg 1404w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-90db-300x164.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-90db-768x419.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-90db-1024x559.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><\/p>\n<p>(click on picture to zoom)<\/p>\n<p><strong>90dB @ 1m<\/strong><\/p>\n<p>Left = Sample #1<\/p>\n<p>Right = Sample #2<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-95db.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6527\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-95db.jpg\" alt=\"\" width=\"360\" height=\"196\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-95db.jpg 1404w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-95db-300x164.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-95db-768x419.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-1-18cm-95db-1024x559.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-95db.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6528\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-95db.jpg\" alt=\"\" width=\"360\" height=\"196\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-95db.jpg 1404w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-95db-300x164.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-95db-768x419.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2018\/09\/SB17NRXC35-8-2-18cm-95db-1024x559.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><\/p>\n<p>(click on picture to zoom)<\/p>\n<p><strong>95dB @ 1m<\/strong><\/p>\n<p>Left = Sample #1<\/p>\n<p>Right = Sample #2<\/p>\n<p>The SB17NRXC35-8\u00a0 mid-woofer is overall a low distorting driver. Note! Disregard the third-order spike at 1.4kHz. It&#8217;s unfortunately a measurement artifact caused by the enclosure.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview: The SB Acoustics SB17NRXC35-8 is an 8\u2126\u00a0 6&#8243; mid-woofer from SB Acoustics. The mid-woofer has a 35.5mm voice-coil with a healthy 11mm (p-p) linear coil travel. It has a very low voice-coil inductance and is fitted with a copper sleeve on the pole piece to ensure a low distortion performance. Key features: Vented cast [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6505","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/pages\/6505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"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=6505"}],"version-history":[{"count":15,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/pages\/6505\/revisions"}],"predecessor-version":[{"id":7190,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/pages\/6505\/revisions\/7190"}],"wp:attachment":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}