Filtek – Neumann follower analog summing mixer

If you want to breathe life into your digital tracks the Filtek analog summing mixer is the best way to do it.

Transparent and clean with high amount of analog harmonic excitation content – associated with smooth pleasant analog warmth, haufe x-formers adds depth, color, character and presence to your sound – mix – trough legendary Neumann style Haufe transformers

16×2 Filtek DV1175 Summing (all style) Neumann follower Haufe transformer

949 € + shipping  ORDER Would you like a better price for the product? Make an offer!

Availability: Limited-Quantities

All style purposes – Modern Analog Sound – Neumann style Haufe X-Formers


Excellent equal frequency distribution all over the spectrum, Bass frequencies are well balanced (from bottom mid all over to sub) by Haufe style legendary vintage German in/out transformers


  • Basic Version D-Sub In/ TRS Out 
  • Amp type: Filtek BFE DV1175 
  • 16 input DB25/DSUB (basic) or TRS 1/4″ BALANCED (order)
  • 2 x Stereo OUT TRS Balanced (MainRec/Monitor)
  • 2 x Stereo to 4 Mono Switch on ST1/ST2 = 4 MONO
  • Master Active/Passive 2in1 option by switch
  • Master Insert Send/Return by TRS AUTO SWITCH
  • *you can order with front switches for 40 Euro extra see INSERT DOCS
  • 21 Step Precision Filtek MASTER GAIN POT
  • PSU: 110-240VAC to 18-24 VDC 0,6-1,5A (world wide) EU plug
  • *out of EU you need EU to US/UK/AU plug travel power adaptor
  • Unique Name or Logo engrave design (order)
  • Power Led: White, Red, Green, Yellow or Blue?

For TRS Input add 50 € extra For XLR Out add 50 € extra

Update – January 2023

Filtek transformer cards are extreme rare nowadays. Due to difficult acquisition Filtek transformer audio cards can be temporary out of stock. Please contact me for actual availability.

The MK3, originally designed by Stefan Sulke in the 1970s, was initially exclusively manufactured and distributed by the Swiss-based company FILTEK.

Over time, this design became the most widely imitated and licensed equalizer design for Dannercassettes. The LAWO W995/7 and the BFE MK3 are precise 1:1 replicas of the Filtek design.

The circuitry of the FILTEK MK3 is constructed to high-quality standards and complies with the specifications of the IRT (Institut für Rundfunk Technik). FILTEK upholds a rich tradition of producing exceptional vintage broadcast modules. Initially, these modules were exclusively created for radio stations due to their high initial cost. However, over the years, they have found their way into recording studios worldwide as affordable and dependable equipment.

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Customer feedback review Filtek 32×2 Summing Mixer

Hi Paul, I’m Aleix! And yesterday I was testing the discrete summing Filtek bfe! And I liked very much!  Yesterday we tried it in my studio with a Digi 003 + Converter RME ADI 8 to have 16 tracks for summing! The Filtek is very clear, when mixed, it is very easy, because once everything is in place, treble and bass are more clear! I tried the SPL MixDream and Neve. And I love the SPL! But after testing the Filtek, both quality and price is amazing !!!!! So I like this new Filtek you’re building! Aleix Arcs from Barcelona

24 input 3 x group insert with 9 x stereo to 18 mono

Customer review Filtek vintage summing unit – UK. 

I’ve bought one summing mixer from  3 months ago and I’m really happy with its sound (it is Filtek BFE option). This box does exactly what all consumer multichanel audio interfaces lack. I’m currently using it with M-audio ProFire 2626. What I would like to say is that this guy is real 🙂 and he’s making very nice equipment out there. Besides, he is very approachable and helpful regarding all questions and inquiries.

Feedback from Studio  VAA

+1 to the above posts. I got the filtek 16 channel version to use in a fully treated project space at the beginning of the year… throw in a pair of ensembles and set focal twins and … well lets say this ‘compact’ set up blows clients of all genres away… Full stop. The clarity, imaging and tonality is simply astonishing for the outlay. An aural pleasure . If you are itb, got some nice valvie toys (and understand analogue gain staging within a daw – its amazing how many don’t!) and want to get the rich and silky console joy this is the best 500 quid you could possibly spend….IMHO (ok sprinkle a healthy few k for the other bits!)

Filtek 24 x 6 Summing Mixer

2U rack unit
Filtek DV1175 (dual stereo balanced)
24 In DSUB Tascam Balanced input
3 x Stereo out XLR (Main/Monitor/VU) ABC
Master out ON/OFF switching control ABC
Monitor control linear poti on out B (-30dB) Vintage Black knob
Master Active/Passive both 2in1 switch
4 xStereo Multi Master Send Return DSUB ABCD post sum
*Multi Master insert with 4×2 SND/RET byp DSUB
4 x Stereo (1-8) Channel Insert Send Return by switch via DSUB
4 x Stereo to 8 Mono on 1/2 and 3/4 5/6, 7/8
Direct Monitoring (bypass summing) on input 1/2 (or let me know)
Master stereo to mono switch (mix mono compatibility test)
Phase Invert R side of master stereo signal switch
1 x 21 Step precision Filtek Master gain Vintage Black knob
Power Supply :110-220VAC to 18-24VDC PSU (EU Plug)

16 input TRS DSUB CH insert 3 x Master insert trs xlr out

Unique design custom name engraving

haufe lundahl transformer Jensen