Spatial Computer Velocity Bridge VB1

My 2c.

I have lived with the VB1 for a few months on Zu Omen + Zu Libtec + Krell KAV-300.

If you go to spatialcomputer dot com slash page9 slash page9 dot html you will see a graph with expected impedance modification due to VB1. Ok... what does that mean for the sound?

The VB1 does something. That much is clear. In this system (and might be particular to this system due to the unorthodox bandpass filter implementation?) the apparent effect is a reduction in overemphasis in the mid-high frequency (1 to 10kHz?). There is some ringing / sibilance / distortion / shout left behind, which spikes up at higher volume.

Removing VB1 - the overemphasis is back, but ringing / sibilance / shout is less obvious (not staring you in the face). No high volume funny business - what's there is there at low volume as well.

Right now I'm not convinced to prefer a tamer sound with shout to a more evenly distributed frequency layout with less localized apparent distortion.

But for $200 it was worth a shot. Might try them on my next speakers.

At the time of purchase I asked for mine be fitted with clamps. This made is very easy to attach to anything (bare wire, spade, even directly to speaker terminals). Just make sure that the clamps don't inadvertently touch each other :).

I have tried them in more configurations since original post. I maintain that they do make a difference, but admittedly I did not have enough patience to wait for them to reach the supposed steady state each time. As such, I'm still not convinced that I like what they do. YMMV.