No problem Goulsonc. Whether amps sound different or the same if operated within their specs is debatable and has been argued for years. I won't go down that road. I do believe though that all amps are not created equal in terms of their quality of construction, internal parts used and current capability (despite the amount of watts they may be advertised). The Parasound fits all above as I am sure no one will dispute their quality and high current capability. Also, since a concern is ability to be repaired, I am sure many will attest to their great customer service and twenty plus year history. Finally they are not an ID company and that should bring some relief. I am not knocking ID manufacturers - many offer excellent products for the money but lets remember that these are young companies that may not be here in a few years. Warranties and ability to service could become non-existent. Look whats happening to the latest ID failure - Elemental Designs. Alot of people got ripped off. This is why I stick with established manufacturers who sell through either B&M stores, dealership networks or authorized internet retailers.
If you agree this is a good concern to have, then you should ask yourself if the amp you are considering has the power (combination of watts & current) to adequately drive your speakers to reasonably loud levels without breaking a sweat. Most that listed in addition to the HALO do. I also agre to stick with Class A or AB. I am not a Class fan based on the ones I heard so far.
In my case, my Parasound puts out 125 wpc, 35 amps max current into my 4 Ohm Vienna Acoustic speakers. No problem whatsoever and I would have to back off the volume because of how loud the system is playing before I ever had to worry about clipping or going into protection mode. Good luck on your amp journey.