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Romy the Cat wrote:

Hm, interesting, I did drop the crossover frequency but I do not like the result. I was driven in different configurations and experimented from the current 13kHz to 7.5kHz. As soon I drop below ~ 11.8kHz then the overly clean and would say sterile influence of the Water Drop become to dominant and ruin the very fine texture of the Vitovox S2’s upper range. Also, during my standard “sit-down test” the WD and S2 sounded not like slightly different drivers and the WD was bit too soft - I did not have it before. I need to make the WD slightly harder and slightly more hostile. Then I will think how to integrate it with my updated S2. So fae, it is not there…

In fact it is not just better but it is truly perfect.

I made a number of experiments over the last two day but it was no good. Dropping the crossover made the Water Drop to take over Vitavox and it was not what I liked. I began to think that I need to “tweak” the amp that drives the Water Drop, making it somehow “harder”. I did not like this idea – the single stage the drives the Water Drop in theory shall be the best imaginable amp – a single stage with only single resistor in path. Still, something needed to be done.

Then I printed my comments about my dissatisfaction of the Water Drop and read them a few times, paying attention to the language. I was looking for aggressiveness and hardness from my tweeter but I did not want to spoil what I got from my MF.  Then it suddenly occurred to me: I needed a shaper filter on the tweeter.

So, I went for 3rd order and it was immediately clear that it was very right direction to go. The standard “sit down” test made Water Drop and S to sound absolutely undistinguishable – very very impressive! The Water Drop got it’s “hardness” and did not wrecked the S2. The 18dB roll off was it, now the key was to find the right new crossover point. Obviously I needed to drive the cut off lower. I was at 13kHz and I dropped to 11 kHz and then to 10kHz. At 10kHz it is incredibly good with S2 and not I ma debating against 10kHz and 9kHz. The 10kHz better talks with S2 but if I use 9kHz then the Water Drop lower the acoustic vertical center, allowing the Macondo Injection to run 2dB harder. Both have own positive aspects and I do not know what I would lend yet.

However, regardless if I select the 10kHz or 9kHz the third order with lower crossover is it and it will be the solution to integrate the Water Drop with more idling MF Vitavox driver.

The Cat

PS: Just for my own future reference:

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