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A few comments. I think the region that impressed you was somewhere 50Hz-500Hz, the melody range with all those fundamentals. It might appear that it was in the lower end but I think it still was the fundamentals with first overtones. Since you commented that your own playback does not do what Tony’s playback does, so you might to look into it.

I know you have a single Onken bin. You call Tony’s bass as Onken but it is not exactly accurate - it is not Onken. Anyhow, you need to determine what in Tony’s sub 500Hz sound attracted you. Do not forget that Tony’s has double driver enclosures that are 8 times larger then your, larger room and a dedicated Fundamentals Channels that sited between MF and bass – a VERY powerful tool for shape the size of the presentation.  If I were you then I would get a real time spectral analyzer (RTA) and spend a few hours in Toney room educating yourself what you are hearing. With certain experience you might not need the RTA but I do not know if you have that experience.

So, what you need to pay attention at beginning is to recognize if what you like in Tony sound comes from structure, texture or from amplitude. I can give you 99% that you were attracted to amplitude factories that would be very easy to chaise. Using RTA get reference for each individual Tony’s channels. Since he is a friend of yours, he shell let you to do it.  For left speaker, disconnect all channels except one and run 20-20K sweep. Save the result and do the same for each channel (use juts left speaker one for beginning). Then do the same sweep for all channels connected.  All measurements make with a microphone positioned in your listening spot. This would give you an idea how the individuals channels contribute in the whole sound of the Tony’s room. Then play your music and trey to roll off Tony’s bass and Tony’s Fundamentals Channel for a few dBs, paying attention what happen with your presumption of sound and correlating it with deformation of the RTA sweep. Soon on later you will be able to get the type of presentation you have in your own room – this would be an indication that it was not the structure or texture of bass that impressed you but a proper mix of amplitudes with other channels.

Go home and try to set up on your own system the similar balance patter of your Onken with the rest of your channels, This time do not listen your playback but use juts RTA sweeps. After you get the similar balance you liked at Tony’s place then listen what you got. Play within 0.5dB-1dB to fine-tune the balance. You suppose to get the similar quantitive result. You will have different sound as there is many other structural, textural, dymick and tonal differences but ONLY then your will be able to recognize the differences and some probable problems of your bass section objectively.

Anyhow, if you heard in another playback something that very much attracted you they you might want to use it as an educational opportunity to make own sound better, if you feel it worth it for you.
The caT

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