The Dayton DSA 135 or even 165, aluminum 5.25" or 6.5", PRs may work of you can get the tuning low enough. I will model it and get back to you, but know that added mass and resulting tuning will likely require measurements with a LIMP or DATS.
In the meantime, the sister project that was modeled when the Peerless PRs went NLA the first time is called Biumph. It uses a single Dayton DS215PR instead of the 2 smaller units. I can dig that one up too in the process...
In the meantime, the sister project that was modeled when the Peerless PRs went NLA the first time is called Biumph. It uses a single Dayton DS215PR instead of the 2 smaller units. I can dig that one up too in the process...
