High all, I've noticed the HV varying between 3000 and 2700 volts depending on the time of year where I live. I'm reading 234 VAC on the line to the amp and I'm on a 20 amp 220 VAC breaker. Is this drop a demand issue? Anyone else notice this? I've never had this issue until I moved to this house....2 months ago. Thanks and 73, Cam WA4JKW