I have mentioned this service before here on AC within a few threads and earlier this week I posted something about it on our Facebook page. So I thought I'd make a new post for it here as well for those that are not aware of this service.
For all of you guys out there trying your hand at building or designing your own speakers, we offer a free measuring and testing service. You just cover the shipping cost both ways and we'll run a complete set of measurements, plus provide evaluation, and recommendations (for FREE). The measurements include on axis responses, vertical off axis responses, horizontal off axis responses, individual driver responses, a spectral decay, and the impedance response.
But if it's a big heavy speaker then you might have to show up with it and help set up and take down or cover a handling fee.