The place for a surge protector is on your TV cable line (only, unless you like choking the current flow to your audio system).Sorry, but this is mistaken. The notion that all surge protectors are "choking the current flow to your audio system" is simply misinformed.
A surge protector on your cable TV line offers no protection to your audio equipment. It also offers no protection from a lightning strike.
To protect from a lightning surge - which is clearing the most dangerous to electronic equipment - you can't do better than a Type 1 device. The Leviton 50240-MSA is probably as good as any for this use, and it does not limit current. Oddly, not all utilities allow Type 1 devices to be installed in their meter panels.
A Type 2 surge protector will also not limit current.
Some Type 3 devices do limit current, but not nearly so much as many audiophiles suspect. This can be shown by measuring the device's output under load.