<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/elements/1.1/">
	<channel>
		<title><![CDATA[diy-hifi-forum.eu - Neue Mitglieder im Forum]]></title>
		<link>https://diy-hifi-forum.eu/</link>
		<description><![CDATA[diy-hifi-forum.eu - https://diy-hifi-forum.eu]]></description>
		<pubDate>Mon, 19 Oct 2026 20:03:14 +0000</pubDate>
		<generator>MyBB</generator>
		<item>
			<title><![CDATA[Ein Neuer aus dem Süden...]]></title>
			<link>https://diy-hifi-forum.eu/showthread.php?tid=22558</link>
			<pubDate>Sun, 18 Oct 2026 11:10:21 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://diy-hifi-forum.eu/member.php?action=profile&uid=4451">XTC-AUDIO</a>]]></dc:creator>
			<guid isPermaLink="false">https://diy-hifi-forum.eu/showthread.php?tid=22558</guid>
			<description><![CDATA[Hallo Allerseits!<br />
<br />
Vielen Dank für die Aufnahme in dieses Forum.<br />
<br />
Ich bin Jürgen, 62 Jahre jung/alt (?) und wohne am Rande der Schwäbischen Alb in der Nähe der Donau bei Riedlingen.<br />
<br />
Momentan bin ich noch ein paar Jahre als Service-Techniker im Maschinenbau tätig, bis ich mich dann im Sommer28 zur Ruhe setzen kann und mich meinen zwei Lieblingshobbies widmen kann.<br />
Neben dem Reisen (vorzugsweise Campen im selbstgebauten WoMo) baue ich seit meinem 18 Lebensjahr Lautsprecher und neuerdings auch sonstiges HiFi-Zeugs. Natürlich gab es auch viele Jahre da ich dieses Hobby vernachlässigt hatte, in den vergangenen 10 Jahren wurde dies aber wieder intensiviert.<br />
<br />
Ganz unten gibts dann noch eine kleine Auswahl meiner "Bemühungen".<br />
<br />
Viele Grüße,<br />
Jürgen<br />
<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41740" target="_blank" title="">ESL1.jpg</a> (Größe: 199,89 KB / Downloads: 29)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41741" target="_blank" title="">ESL2 (Prototyp).jpg</a> (Größe: 117,86 KB / Downloads: 22)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41742" target="_blank" title="">ESL3 (Prototyp).jpg</a> (Größe: 112,21 KB / Downloads: 17)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41743" target="_blank" title="">ESL4 (Fertig...naja, fast).jpg</a> (Größe: 81,01 KB / Downloads: 25)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41744" target="_blank" title="">OB1.jpg</a> (Größe: 101,69 KB / Downloads: 22)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41745" target="_blank" title="">OB2.jpg</a> (Größe: 162,35 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41746" target="_blank" title="">TQWT1.jpg</a> (Größe: 114,85 KB / Downloads: 24)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41747" target="_blank" title="">TQWT2.jpg</a> (Größe: 266,33 KB / Downloads: 14)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41748" target="_blank" title="">TQWT3.jpg</a> (Größe: 154,89 KB / Downloads: 14)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41749" target="_blank" title="">TQWT4.jpg</a> (Größe: 121,59 KB / Downloads: 12)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41750" target="_blank" title="">TT1.jpg</a> (Größe: 138,89 KB / Downloads: 12)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41751" target="_blank" title="">TT2.jpg</a> (Größe: 161,75 KB / Downloads: 9)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41752" target="_blank" title="">TT3.jpg</a> (Größe: 120,23 KB / Downloads: 10)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41753" target="_blank" title="">TT4.jpg</a> (Größe: 111,83 KB / Downloads: 12)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41754" target="_blank" title="">TT5.jpg</a> (Größe: 123,84 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41755" target="_blank" title="">WISH YOU WERE BEER 1.jpg</a> (Größe: 128,9 KB / Downloads: 20)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41756" target="_blank" title="">WISH YOU WERE BEER 2.jpg</a> (Größe: 400,53 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41757" target="_blank" title="">WISH YOU WERE BEER 3.jpg</a> (Größe: 66 KB / Downloads: 15)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41758" target="_blank" title="">WISH YOU WERE BEER 4.jpg</a> (Größe: 17,69 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41759" target="_blank" title="">WISH YOU WERE BEER 5.jpg</a> (Größe: 49,58 KB / Downloads: 13)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[Hallo Allerseits!<br />
<br />
Vielen Dank für die Aufnahme in dieses Forum.<br />
<br />
Ich bin Jürgen, 62 Jahre jung/alt (?) und wohne am Rande der Schwäbischen Alb in der Nähe der Donau bei Riedlingen.<br />
<br />
Momentan bin ich noch ein paar Jahre als Service-Techniker im Maschinenbau tätig, bis ich mich dann im Sommer28 zur Ruhe setzen kann und mich meinen zwei Lieblingshobbies widmen kann.<br />
Neben dem Reisen (vorzugsweise Campen im selbstgebauten WoMo) baue ich seit meinem 18 Lebensjahr Lautsprecher und neuerdings auch sonstiges HiFi-Zeugs. Natürlich gab es auch viele Jahre da ich dieses Hobby vernachlässigt hatte, in den vergangenen 10 Jahren wurde dies aber wieder intensiviert.<br />
<br />
Ganz unten gibts dann noch eine kleine Auswahl meiner "Bemühungen".<br />
<br />
Viele Grüße,<br />
Jürgen<br />
<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41740" target="_blank" title="">ESL1.jpg</a> (Größe: 199,89 KB / Downloads: 29)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41741" target="_blank" title="">ESL2 (Prototyp).jpg</a> (Größe: 117,86 KB / Downloads: 22)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41742" target="_blank" title="">ESL3 (Prototyp).jpg</a> (Größe: 112,21 KB / Downloads: 17)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41743" target="_blank" title="">ESL4 (Fertig...naja, fast).jpg</a> (Größe: 81,01 KB / Downloads: 25)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41744" target="_blank" title="">OB1.jpg</a> (Größe: 101,69 KB / Downloads: 22)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41745" target="_blank" title="">OB2.jpg</a> (Größe: 162,35 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41746" target="_blank" title="">TQWT1.jpg</a> (Größe: 114,85 KB / Downloads: 24)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41747" target="_blank" title="">TQWT2.jpg</a> (Größe: 266,33 KB / Downloads: 14)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41748" target="_blank" title="">TQWT3.jpg</a> (Größe: 154,89 KB / Downloads: 14)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41749" target="_blank" title="">TQWT4.jpg</a> (Größe: 121,59 KB / Downloads: 12)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41750" target="_blank" title="">TT1.jpg</a> (Größe: 138,89 KB / Downloads: 12)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41751" target="_blank" title="">TT2.jpg</a> (Größe: 161,75 KB / Downloads: 9)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41752" target="_blank" title="">TT3.jpg</a> (Größe: 120,23 KB / Downloads: 10)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41753" target="_blank" title="">TT4.jpg</a> (Größe: 111,83 KB / Downloads: 12)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41754" target="_blank" title="">TT5.jpg</a> (Größe: 123,84 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41755" target="_blank" title="">WISH YOU WERE BEER 1.jpg</a> (Größe: 128,9 KB / Downloads: 20)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41756" target="_blank" title="">WISH YOU WERE BEER 2.jpg</a> (Größe: 400,53 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41757" target="_blank" title="">WISH YOU WERE BEER 3.jpg</a> (Größe: 66 KB / Downloads: 15)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41758" target="_blank" title="">WISH YOU WERE BEER 4.jpg</a> (Größe: 17,69 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41759" target="_blank" title="">WISH YOU WERE BEER 5.jpg</a> (Größe: 49,58 KB / Downloads: 13)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Help with DIY Subwoofer planning]]></title>
			<link>https://diy-hifi-forum.eu/showthread.php?tid=22491</link>
			<pubDate>Sun, 13 Sep 2026 15:09:59 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://diy-hifi-forum.eu/member.php?action=profile&uid=4407">smsibana</a>]]></dc:creator>
			<guid isPermaLink="false">https://diy-hifi-forum.eu/showthread.php?tid=22491</guid>
			<description><![CDATA[Greetings everyone, im new here!<br />
<br />
I wanted to build a sealed passive subwoofer for my 18,5m^2 room, mostly for music, some movie capability would be nice but not the focus. 70/30 Music/movie id say. Powering the sub will be a Behringer nx3000, and for DSP im currently using my pc. Also have a UMIK-1 on the way.<br />
<br />
I personally really like the way that the Dayton Ultimax umii12 22 12inch driver looks, and it should be capable enough to be used for both music and movies. It might not be the best fit for my needs, but I'm thinking that it will do well enough, right?<br />
<br />
Now the problem is the box design, with the factory parameters, getting a qtc of 0,7 would require something around 90-100L net volume, which is quite something for a sealed 12 inch. <br />
There was however an audioexpress article that measured the parameters of this specific driver, and found some pretty interesting values. Using the measured parameters, the sub reaches a qtc of 0.54 in a 50L enclosure.<br />
This however complicated WinISD simulations. Using the averaged measured parameters, the other parameters that WinISD calculates are very different from the factory specs, for example: Mms of 428 instead of 189, BL of 23,6 instead of 14,8 and Cms of 0,066 instead of 0,133. <br />
At this point I'm not really sure what parameters to use for simulation purposes, and what size box to choose..<br />
<br />
Does anyone have some opinions on this, or possibly experience with this specific driver?<br />
Any help is appreciated, many thanks!<br />
<br />
<br />
<br />
<img src="https://cdn.xingosoftware.com/audioxpress/images/fetch/dpr_1,w_1200/https%3A%2F%2Faudioxpress.com%2Fassets%2Fupload%2Fimages%2F1%2F20251030103102_Table1-test-bench-umii12-22-dayton-audio-ultimax-subwoofer.jpg" loading="lazy"  alt="[Bild: https%3A%2F%2Faudioxpress.com%2Fassets%2...woofer.jpg]" class="mycode_img" /><br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<a href="https://audioxpress.com/article/test-bench-the-umii12-22-from-dayton-audio-s-ultimax-ii-subwoofer-line" target="_blank" rel="noopener" class="mycode_url">https://audioxpress.com/article/test-ben...oofer-line</a><br /><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="PNG Image" border="0" alt=".png" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41539" target="_blank" title="">Screenshot 2026-09-13 164227.png</a> (Größe: 169,63 KB / Downloads: 0)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[Greetings everyone, im new here!<br />
<br />
I wanted to build a sealed passive subwoofer for my 18,5m^2 room, mostly for music, some movie capability would be nice but not the focus. 70/30 Music/movie id say. Powering the sub will be a Behringer nx3000, and for DSP im currently using my pc. Also have a UMIK-1 on the way.<br />
<br />
I personally really like the way that the Dayton Ultimax umii12 22 12inch driver looks, and it should be capable enough to be used for both music and movies. It might not be the best fit for my needs, but I'm thinking that it will do well enough, right?<br />
<br />
Now the problem is the box design, with the factory parameters, getting a qtc of 0,7 would require something around 90-100L net volume, which is quite something for a sealed 12 inch. <br />
There was however an audioexpress article that measured the parameters of this specific driver, and found some pretty interesting values. Using the measured parameters, the sub reaches a qtc of 0.54 in a 50L enclosure.<br />
This however complicated WinISD simulations. Using the averaged measured parameters, the other parameters that WinISD calculates are very different from the factory specs, for example: Mms of 428 instead of 189, BL of 23,6 instead of 14,8 and Cms of 0,066 instead of 0,133. <br />
At this point I'm not really sure what parameters to use for simulation purposes, and what size box to choose..<br />
<br />
Does anyone have some opinions on this, or possibly experience with this specific driver?<br />
Any help is appreciated, many thanks!<br />
<br />
<br />
<br />
<img src="https://cdn.xingosoftware.com/audioxpress/images/fetch/dpr_1,w_1200/https%3A%2F%2Faudioxpress.com%2Fassets%2Fupload%2Fimages%2F1%2F20251030103102_Table1-test-bench-umii12-22-dayton-audio-ultimax-subwoofer.jpg" loading="lazy"  alt="[Bild: https%3A%2F%2Faudioxpress.com%2Fassets%2...woofer.jpg]" class="mycode_img" /><br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<a href="https://audioxpress.com/article/test-bench-the-umii12-22-from-dayton-audio-s-ultimax-ii-subwoofer-line" target="_blank" rel="noopener" class="mycode_url">https://audioxpress.com/article/test-ben...oofer-line</a><br /><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://diy-hifi-forum.eu/images/attachtypes/image.png" title="PNG Image" border="0" alt=".png" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=41539" target="_blank" title="">Screenshot 2026-09-13 164227.png</a> (Größe: 169,63 KB / Downloads: 0)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Neu im Forum ? Hier kannst Du dich Vorstellen]]></title>
			<link>https://diy-hifi-forum.eu/showthread.php?tid=22460</link>
			<pubDate>Sun, 16 Aug 2026 15:21:39 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://diy-hifi-forum.eu/member.php?action=profile&uid=3802">ADMIN_Olaf_HH</a>]]></dc:creator>
			<guid isPermaLink="false">https://diy-hifi-forum.eu/showthread.php?tid=22460</guid>
			<description><![CDATA[Hallo<br />
in diesem Unterforum können sich neue Member im Forum vorstellen.<br />
Bitte keine Diskussionen]]></description>
			<content:encoded><![CDATA[Hallo<br />
in diesem Unterforum können sich neue Member im Forum vorstellen.<br />
Bitte keine Diskussionen]]></content:encoded>
		</item>
	</channel>
</rss>