Add another Peerless and Monacor chassis

[klingtnet]

This adds definitions for the following two subwoofer chassis:

• Monacor SPH-200CTC: https://www.monacor.com/products/components/speaker-technology/hi-fi-speakers-/sph-200ctc/
• Peerless SLS-P830667: https://www.tymphany.com/transducers/sls-p830667/

[be1]

Thank your for your contribution. Re should be 6.8 Ohm in the Monacor driver. QSpeakers don't know about dual voice coils in parallel, yet.