Resonant peak adjustment?

Quote from sndrbgnr on November 12, 2025, 10:50 am

Thank You for your questions!

Bognar Admin & Development,

It seems like your pickup system is exactly what I’ve been theorizing about and looking for for a while now. I understand that there will be a small communication problem because I speak NO Hungarian. 😉🤣

Question 1: Are the pickups in the system designed to be as flat frequency response as possible so that the filter/EQ can be used to emulate the various common pickups via a ‘resonant peak’ frequency and Q?

Exactly.

Have a look at the attached Bode plots.

Please check my comment on this topic: https://bognarelectronics.com/forum/topic/serial-and-parallel/

Question 2: can the presets for the basic EQ curve including resonant peak frequency & Q that you use for the default “Single-Coil” or “Humbucker” sounds in the control app be adjusted?

Yes.

Question 3: Is the output at the jack considered ‘active’ (lower impedance than ‘passive’ guitar jack outputs)? This of course would minimize the capacitance and resistance loading by the cables and input impedance of amplifiers. 😎

Yes the output is buffered.  You do not need to use premium cables to connect to the amplifier.

Question 4: Is there a way to charge the Li-Ion battery while you’re playing in case it runs out and you still need to play? 🤔

No.

Question 5: Which parameters CAN and which parameters CAN’T be linked to the “Volume” and “Tone” knobs on the guitar?

All the sliders except for EQ bands.  You can download the app and in demo mode you can check all the parameters of  presets.

https://play.google.com/store/apps/details?id=hu.bonasati.bss.guitare1921

https://apps.apple.com/us/app/bognar-pickups/id6447558029

MANY thanks for answering my questions and for developing this system! 🙏

Thank you for your questions and if i can help you with anything else feel to contact us.

Quote from airforceguitar on November 25, 2025, 5:50 am

Thank you for your detailed reply. I understand the basics of how your pickup system achieves its results.

One more question, please, before I commit to the purchase. 🙏

How does the system deal with recreating the sound of multiple pickups in parallel (positions  2 & 4 on Strat-style guitars or the middle position on Tele or LP style guitars). I LOVE the ‘quack’ sound and transient response of my Strat bridge+middle and middle+neck selections, but know that running multiple coils in parallel increases the resonant peak frequency and results in electrical and signal frequency interference resulting in multiple peaks and troughs in frequency response.

How are these emulated with the various peaking filters? 🤔

many thanks

Quote from sndrbgnr on November 26, 2025, 8:52 pm

Thank you for your question.

As you say, since the pickups are in different physical positions, they receive the signal at different phases. When you add these together you get interference and ference. In this system you can mix the signals of all three pickups to within 1 dB. If you also consider the three pickups single coil, humbucker combinations, you get endless possibilities. This is the most important tool for achieving different body effects.

If you have more questions, I happy to answer.

Quote from airforceguitar on November 27, 2025, 8:39 pm

Once again, thanks for the response. 🙏 I still need to purchase some sort of Stratocaster-type guitar to install the ST-PRO into and save the money for your product. (The USD is way down compared to the Euro because we have a delusional authoritarian and sycophants in office right now 😫). I’m sure you can relate in Hungary.

I had speculated that the use of multiple pickups with active EQ could be used to achieve very nice approximations of hollow-bodied Jazz guitar response as your frequency response plots indicated. 👍

Could you produce some more demo videos to illustrate the replication of Strat in-between sounds i.e. a Mark Knopfler sound for Strat bridge+middle sound/response? I can’t wait to save up enough to install and use the ST-PRO! 😜

Quote from admin on December 4, 2025, 4:03 pm

Hi,

We’ve recorded a short demo showcasing the Strat’s 2 and 4 pickup positions. This one uses the ’63 Strat presets, but we have other Strat presets available as well.
Close-miked recording: https://bognarelectronics.com/wp-content/uploads/2025/12/Strat_2-4Positions.wav
Video link using the camera mics: https://youtu.be/h2gExRzT6qI

Quote from admin on December 23, 2025, 1:31 pm

Here is a Mark Knopfler sound played by Kfir Ochaion:
https://www.youtube.com/shorts/sFLabM_7bjo

Quote from airforceguitar on December 24, 2025, 10:02 pm

I genuinely think the Bognar pickup system is the greatest thing to happen to electric guitar since the original release of the Fender Telecaster (originally Broadcaster)!

I appreciate Kfir Ochaion including the iconic bridge+middle pickup sound that contributed to Mark Knopfler’s unique signature sound. Understanding how the Bognar system recreates classic sounds/responses through starting with very flat frequency response pickups and using active filters to create the most important factor of the sound in the frequency and Q of a ‘resonant peak’ was an idea that was running through my head for a while.

With traditional passive guitars this resonant peak is engineered through magnet type/size, winding amount and overall pickup geometry which gives you ONE desired outcome. Combining pickups in series or in parallel (like the Stratocaster) moves this resonant peak resulting in very different outcomes.
I wondered if the Bognar ST-PRO could be used to emulate this result and by including examples of multiple pickups in parallel with the onboard filters you have demonstrated that it EASILY achieves the result! PLUS, it has the power to emulate ANY system of traditional magnetic guitar pickups and/or create new sounds impractical/impossible for guitars without the Bognar system and then access 50 of them all instantly. I’m sold! 😎

Quote from sndrbgnr on February 12, 2026, 6:10 pm

If you have the guitar, please ask for some discount for the pickups You surely deserve it!