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DIY biamp 6-24 crossover
DIY biamp 6-24 crossover
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Old 21st July 2020, 06:20 PM   #1
Nelson Pass is offline Nelson Pass  United States
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DIY biamp 6-24 crossover
Default DIY biamp 6-24 crossover

At long last, I present the DIY Biamp 6-24 Crossover.

Attached is the "owners manual" which contains everything I have to say.

Basically it is a complete stereo biamp crossover which has 6, 12, 18 and
24 dB/octave slopes and filter poles independently adjustable over a
6:1 frequency range.

Quantities of the "Essentials Kit" are ready to ship to the store, and
should be available shortly. It includes the pc board and the selected
Jfets + bias resistors. The part list is complete and everything can be
obtained from Digikey and Mouser. I expect a "completion" kit to also
be offered.

6L6 has been provided with an advance copy to enable one of his
popular build guides, and Mike Rothacher has put together a simulator
for customization.

Attached Files
File Type: pdf DIY CROSSOVER 6-24.pdf (738.7 KB, 2835 views)
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Old 21st July 2020, 06:37 PM   #2
olen is offline olen  United States
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DIY biamp 6-24 crossover
Thanks Nelson, this will be a perfect complement to a B4 or miniDSP! Once I dial in the slopes and frequencies on the B4 I can build an affordable dedicated x-over. This should also be great compliment to the LXmini to add a sub or two.

Hi Jason, will there be pre-order for the first batch of these boards/kits? If so put me down for 4 channels

Thanks again,
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Old 21st July 2020, 06:38 PM   #3
Dennis Hui is offline Dennis Hui  Canada
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DIY biamp 6-24 crossover
Thank you Papa!
We are fearless amplifier builders. A little heat doesn't scare us at all.
- NP 2002
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Old 21st July 2020, 06:42 PM   #4
Zen Mod is offline Zen Mod  Serbia
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DIY biamp 6-24 crossover
Baad Papa!!

my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
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Old 21st July 2020, 06:55 PM   #5
AmpsRus is offline AmpsRus  United States
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Location: Silicon Valley
When Papa's gem's drop in the DIY nest like this, I feel like a baby bird with an open beak. :7)

Assume we double up for Balanced operation?

Last edited by AmpsRus; 21st July 2020 at 06:58 PM.
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Old 21st July 2020, 07:10 PM   #6
mattking52 is offline mattking52  United States
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DIY biamp 6-24 crossover
Fantastic news, Nelson. Thanks for the work you did on this!
As you know, I've been waiting [im]patiently for this...
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Old 21st July 2020, 07:43 PM   #7
Soundhappy is offline Soundhappy  France
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Superman is back Thanks Mr.Pass for excellent new available DIY project!
class A amplifiers with full range speakers
sings like angels in heaven
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Old 21st July 2020, 08:42 PM   #8
gl is offline gl  United States
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Location: Sierra Foothills - California
Nelson, thank you for this enormously useful project.

BTW - there is a minor typo in the BOM; the JFET is given as J114 rather than J113.

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Old 21st July 2020, 10:05 PM   #9
codyt is offline codyt  United States
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DIY biamp 6-24 crossover
This will be fun - thanks NP!
Soekris 1321 | Pearl II > B1v1 / B1v2 / B1K / H2v2 / BA1FE / BA3FE / WBA18 / ACP+ / Broskie-SRPP / Iron Pre > F4 / F5(K1530/J201) / F6 / AJ / AJSS / ZMJ2 / SONY VFET-SE / SB77B > Spendor 3/1
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Old 21st July 2020, 10:14 PM   #10
Rewind is offline Rewind  Norway
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What a glorious day it is.
Wait, biamp? (counting all my horn channels)
Oh well, back to trying to customize a bunch of LXmini Analog Crossover boards and hope they play nice together.
Attached Images
File Type: jpg shut-up-and-take-my-money.jpg (37.9 KB, 5741 views)

Last edited by Rewind; 21st July 2020 at 10:20 PM.
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