Power amps into surge protector/Conditioner or DIRECT to wall? Final verdict?

Would you plug your pre-amp into a power conditioner/protector and amp into wall (I have a ss 18 wpc First Watt)?  Thanks for any advice

Surge protection aside, I would personally plug my gear directly into the wall socket only when the outlet is a dedicated line. Otherwise you may get noise from all other devices that are sharing the line. These could include light dimmers, microwave ovens, hair dryers, etc., etc. In addition to noise, the voltage in the line may also fluctuate if you have any appliances which turn on/off - think refrigerator compressor, sharing that line. 

As mentioned above....whole house surge protection.

1. Whole house surge protection.
2. Multiple, de-rated, 20A dedicated lines.
3. Separate lines for each amplifier (system is bi-amped)
4.) Separate lines for analog and digital.
5.) Every component goes into a power conditioner.

whole house surge protection!

great idea. no question about it.

however, not a solution if one lives in an apartment or condo.

additionally in homes, installing an isolation T former would be a help.

Dedicated lines are a very good idea though these only reduce, and do not eliminate collateral noise. remember all the neutrals and grounds are connected at the service.

installing dedicated lines should then be on the same phase and if possible, a phase different from what is supplying most major appliances. as said, Micros, 'fridges, dish washers, washing machines, etc.

avoiding the lines ovens, dryers, and hot water heaters use is unavoidable as they are sucking off both phases periodically.

several problems solved!

... but then we're back to the reputed grunge living on the incoming power and a consequent need for filtering it out, or at least ameliorating it.