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LX-mini Crossover Article
LX-mini Crossover Article
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Old 17th March 2020, 04:53 PM   #681
troelsbk is offline troelsbk
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Forgive me for the noob question but I'm after an active crossover with no eq. Would the ACN be configurable for this?
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Old 18th March 2020, 04:33 PM   #682
Nelson Pass is offline Nelson Pass  United States
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LX-mini Crossover Article
Yes, you just bypass the EQ.
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Old 18th March 2020, 08:17 PM   #683
trung224 is offline trung224
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Hi Nelson,

Today I watch the BAF2017 video, in which you provided information about crossover network for LXmini+2. From this video, I see you have provided the EQ section in addition to low pass filter for subwoofer module, but this EQ section is omitted in the ASP board for LXmini+2 in magiclx521. Could you provide me the reason why you do that?

Thanks,
Trung
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Old 18th March 2020, 09:36 PM   #684
Nelson Pass is offline Nelson Pass  United States
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LX-mini Crossover Article
The bass section of the LXmini requires a bass boost, thus the EQ, but in the +2
version that need is filled by the subwoofer, leaving only the EQ on the top driver.
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Old 18th March 2020, 10:16 PM   #685
trung224 is offline trung224
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Hi Nelson,

Thanks for your answer but I talk about the LXmini+2 (3 ways) crossover, schematic in time of 39:29 in the video of your presentation Burning Amp 2017.
YouTube
I see for Subwoofer section there are two LR2 low pass filters in the schematic in series with a filter module , which I think it is an EQ or bass equalization. In the final PCB (on magiclx521 website), the EQ/bass equalization has been omitted, leaving only the two LR2 low pass filters. So I would like to ask why you do that.
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Old 19th March 2020, 08:13 AM   #686
Georgeged is offline Georgeged  Georgia
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any news regarding new biamp 6-24 crossover? when it will available in the store?
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Old 19th March 2020, 04:29 PM   #687
Nelson Pass is offline Nelson Pass  United States
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LX-mini Crossover Article
Quote:
Originally Posted by trung224 View Post
I see for Subwoofer section there are two LR2 low pass filters in the schematic in series with a filter module , which I think it is an EQ or bass equalization. In the final PCB (on magiclx521 website), the EQ/bass equalization has been omitted, leaving only the two LR2 low pass filters. So I would like to ask why you do that.
The filter set at BAF 2017 was an initial design for the +2 version, and
included a bass boost EQ circuit as used in the LXmini. Later in 2018
Siegfried decided to omit the bass boost on the +2 and S versions,
but it is still included in the LXmini circuits.
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Old 26th March 2020, 05:26 AM   #688
nagini262 is offline nagini262  Viet Nam
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I built the Nutube preamp with full Black Gate capacitor on the board and the Daitron low noise PSU.
Many thanks Nelson for the excellent preamp!!!
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Old 26th March 2020, 02:35 PM   #689
nagini262 is offline nagini262  Viet Nam
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Sorry all! I posted wrong topic. Please help me move to correct topic!
Thanks!
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