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This is a not for profit group buy any money left over will be donated to support diyAudio. Please pardon the intrusion, but I thought some members here might be interested. If it a rule violation, mods please delete.
If you aren't a diyAudio member you can send me a PM here and I will tell you my paypal address
The group buy WIKI is at http://www.diyaudio.com/wiki/index.p...Filter+Boards+
The board offers in an 80 x 100 mm form:
(This is intended as a final board - placement is tight, rework to change component values might be difficult. )
balanced/single ended input buffer with shelving Low pass (BSC)and low pass for bandwidth limiting
up to 4th order HP and LP with sallen-key equal component value topology
2 output buffers with adjustable attenuation
The following can be patched into either high pass or low pass sections:
2 individual EQ sections that can be either peak or notch filters
1 first order all pass in either 0-180 or 180-360 topology
Linkwitz transform (biquad) can also be configured as Twin-T for dipole EQ.
If you aren't a diyAudio member you can send me a PM here and I will tell you my paypal address
The group buy WIKI is at http://www.diyaudio.com/wiki/index.p...Filter+Boards+
The board offers in an 80 x 100 mm form:
(This is intended as a final board - placement is tight, rework to change component values might be difficult. )
balanced/single ended input buffer with shelving Low pass (BSC)and low pass for bandwidth limiting
up to 4th order HP and LP with sallen-key equal component value topology
2 output buffers with adjustable attenuation
The following can be patched into either high pass or low pass sections:
2 individual EQ sections that can be either peak or notch filters
1 first order all pass in either 0-180 or 180-360 topology
Linkwitz transform (biquad) can also be configured as Twin-T for dipole EQ.
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