I just picked up Wayne PK rebuilt quad 57's. Have been listening for only a couple of days. The panels were sent to him to rebuild by the previous owner. They do not have the protection circuits.
I also own Acoustat Spectra 33's and Model 3's as well as other cone speakers.
I am impressed so far. I admit I am very timid about over driving them though from what I have heard. As Wayne told me - when it happens it is without warning - and once done it will happen again more easily.
The highs sound fine to me and I am getting 40 HZ - they are 5 feet from the front wall and about 7 feet from me.
I also own Acoustat Spectra 33's and Model 3's as well as other cone speakers.
I am impressed so far. I admit I am very timid about over driving them though from what I have heard. As Wayne told me - when it happens it is without warning - and once done it will happen again more easily.
The highs sound fine to me and I am getting 40 HZ - they are 5 feet from the front wall and about 7 feet from me.