Bypassing or replacing the spring terminals wouldn't hurt. I had DM14s (the
contemporaneous two-woofer model) and I did it on them. It helped--just
not a lot. On the DM14 there are other obstacles to music placed between the
input terminals and the drivers: cheap internal wiring, automobile-grade
connectors, average-quality crossover components (now aging) and the
overload protection which is part of the crossover circuitry.
The wires inside can be changed but there's a connector soldered onto the
PCB which is difficult to bypass.
Cutting the overload protection out of the crossover circuit--it does affect the
sound--would be a high-cost-and-effort job. I don't know anyone who has
done it. I don't want to discourage you from trying mods if you really want
to--you always learn something--but for myself I would enjoy the DM12s for
what they are and save upgrade money for new speakers.
contemporaneous two-woofer model) and I did it on them. It helped--just
not a lot. On the DM14 there are other obstacles to music placed between the
input terminals and the drivers: cheap internal wiring, automobile-grade
connectors, average-quality crossover components (now aging) and the
overload protection which is part of the crossover circuitry.
The wires inside can be changed but there's a connector soldered onto the
PCB which is difficult to bypass.
Cutting the overload protection out of the crossover circuit--it does affect the
sound--would be a high-cost-and-effort job. I don't know anyone who has
done it. I don't want to discourage you from trying mods if you really want
to--you always learn something--but for myself I would enjoy the DM12s for
what they are and save upgrade money for new speakers.