Borbely Active Crossover from the Speaker Builder Magazine 1 /1994 and Audio Electronics from 4/1998. Both Magazines can be sent by email: This crossover is a 4-way version (Mono) and can be setup for 12db or 18dB/octave designed by Erno Borbely.
Including: 2 Mother Boards – 4 Input Buffers - 12 Filter and 16 Buffer boards. 2 Input Buffers already include the Toshibas 2SK389BL & SJ109BL. Boards assembled with DALE RN55 the frequency related Parts are not assembled.
All Toshiba Fets 2SK170BL & 2SJ74BL Fets can be supplied but will be charged separately they are original Toshiba from the beginning of the Year 2000. According to Erno's Speaker Builder article the Fets can be configured with resistors and need not to be matched.
Complete with manuals in PDF from Audio Amateur and Board Layouts in PDF. The Buffers are DC coupled and in Cascode design.
The two-power supply’s including, both PSU Boards are tested +/- 24VDC.
Four Schroff Aluminum Cases ( see my DAC offer about the Schroff Case ) plus the 4 Toroid’s / 230Vac sec.2 x 24Vac can be delivered.
2 x Mainboard Board = 360mm x 205mm 4 x Input Buffer Board = 65mm x 60mm
16 x Output Buffer Pcb = 65mm x 43mm 6 X High-Pass Filter Pcb= 80mm x 50mm
6 X Low Pass Filter Pcb = 80mm x 50mm 2 x Power Supply Cap Multiplier = 207mm x 200mm
The non populated Boards are included.
The High Quality relays from SDS / NAIS are included. I have a large quantity of WIMA FKC capacitors which I have used in my own crossover, I will share the values in the next few days. The crossover is located in the EU; I would prefer to sell within the EU; but other Countries is possible as well. But with higher shipping costs. Ship with DHL + 5% PayPal fee.
My Price is 650€ for all Boards. The price is negotiable.
More information about the Crossover from Erno Borbely can be find via the link.
Any questions contact me.
Including: 2 Mother Boards – 4 Input Buffers - 12 Filter and 16 Buffer boards. 2 Input Buffers already include the Toshibas 2SK389BL & SJ109BL. Boards assembled with DALE RN55 the frequency related Parts are not assembled.
All Toshiba Fets 2SK170BL & 2SJ74BL Fets can be supplied but will be charged separately they are original Toshiba from the beginning of the Year 2000. According to Erno's Speaker Builder article the Fets can be configured with resistors and need not to be matched.
Complete with manuals in PDF from Audio Amateur and Board Layouts in PDF. The Buffers are DC coupled and in Cascode design.
The two-power supply’s including, both PSU Boards are tested +/- 24VDC.
Four Schroff Aluminum Cases ( see my DAC offer about the Schroff Case ) plus the 4 Toroid’s / 230Vac sec.2 x 24Vac can be delivered.
2 x Mainboard Board = 360mm x 205mm 4 x Input Buffer Board = 65mm x 60mm
16 x Output Buffer Pcb = 65mm x 43mm 6 X High-Pass Filter Pcb= 80mm x 50mm
6 X Low Pass Filter Pcb = 80mm x 50mm 2 x Power Supply Cap Multiplier = 207mm x 200mm
The non populated Boards are included.
The High Quality relays from SDS / NAIS are included. I have a large quantity of WIMA FKC capacitors which I have used in my own crossover, I will share the values in the next few days. The crossover is located in the EU; I would prefer to sell within the EU; but other Countries is possible as well. But with higher shipping costs. Ship with DHL + 5% PayPal fee.
My Price is 650€ for all Boards. The price is negotiable.
More information about the Crossover from Erno Borbely can be find via the link.
Any questions contact me.
Borbely vs. Marchand crossover networks
https://www.audioasylum.com/cgi/t.mpl?f=general&m=145824Attachments
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