After the smaller Wharfedale Diamond 11.0 model, I also redesigned crossover in the larger Diamond 11.1 model, which I bought used quite cheaply in mint condition, for my sister. The sound was also too dark, a bit lifeless and without details, although not as much as on the smaller model.
I have to say that I like the sound of the smaller 11.0 model a little more. These 11.1. they are nicer, bigger, louder and more powerful, but the sound is for some reason less pleasant compared to the smaller model.
The frequency range image shows the original and the modified version without a resistor in line with the tweeter. With 1R0 resistor (or more) in line with the tweeter the sound is less bright. You should try it in your system, then choose a resistor as desired (0 - 1 - 1.5 - 1.8 - 2.2 ohm).
I also cut the existing damping material a little, redistributed it better in the box and added a little more. In the original, the damping was badly set, it blocked the bassreflex tube and choked the bass, and the back side was without damping.
I moved the bottom plate 9mm away from the box (original distance was 5mm). I had some plastic PVC spacers, just for this. A little more bass is obtained compared to the original distance. To place the speakers against the wall, you probably don't need to move the lower part, it's a matter of trying out what's better. The impact of the redistribution of damping material and displacement of the bottom plate can also be seen in the frequency range image (blue line is new).
In addition, the complete wiring was replaced with VDH CS18 and everything was soldered directly. For the input and bass I doubled the CS18 wires, for the tweeter I put single wires.
As with the smaller model, removing plastic decorative rings is the biggest challenge. This should be done very carefully, mm by mm, so that nothing is damaged or broken. And bring them back only when you are sure that you will not change anything more.
I have to say that I like the sound of the smaller 11.0 model a little more. These 11.1. they are nicer, bigger, louder and more powerful, but the sound is for some reason less pleasant compared to the smaller model.
The frequency range image shows the original and the modified version without a resistor in line with the tweeter. With 1R0 resistor (or more) in line with the tweeter the sound is less bright. You should try it in your system, then choose a resistor as desired (0 - 1 - 1.5 - 1.8 - 2.2 ohm).
I also cut the existing damping material a little, redistributed it better in the box and added a little more. In the original, the damping was badly set, it blocked the bassreflex tube and choked the bass, and the back side was without damping.
I moved the bottom plate 9mm away from the box (original distance was 5mm). I had some plastic PVC spacers, just for this. A little more bass is obtained compared to the original distance. To place the speakers against the wall, you probably don't need to move the lower part, it's a matter of trying out what's better. The impact of the redistribution of damping material and displacement of the bottom plate can also be seen in the frequency range image (blue line is new).
In addition, the complete wiring was replaced with VDH CS18 and everything was soldered directly. For the input and bass I doubled the CS18 wires, for the tweeter I put single wires.
As with the smaller model, removing plastic decorative rings is the biggest challenge. This should be done very carefully, mm by mm, so that nothing is damaged or broken. And bring them back only when you are sure that you will not change anything more.
