Steve_D
Second Unit
- Joined
- Nov 28, 1999
- Messages
- 299
I was considering buying a pro amp to power 2 passive subs. I had my eye on the Crest Audio CA4, rated at 435 watts into 4 ohms, with minimal fan noise based on user reports.
I checked the specs and the current draw maxes at 15 amps! Excuse me, but my entire HT is powered by 1 15 amp circuit! Even the 1/3 power rating was like 9 amps.
If I put one of these on without running another circuit....how will there be anything left over for the rest of the components like the RPTV, 2 channel amp, receiver, etc...
In comparison, my B&K Ref 4420 is capable of delivering 300 watts into 4 ohms and 75 amps peak current but only has a max draw of 6.8 amps. I guess the B&K stores power in the caps to use during peak flows.
Is this partly why pro amps tend to be less expensive watt for watt? Are they designed for area with multiple 20+ amp circuits?
Now, I don't pretend to be an electrical engineer...so could someone tell me if I'm wrong or right about these comments?
TIA
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Link Removed
I checked the specs and the current draw maxes at 15 amps! Excuse me, but my entire HT is powered by 1 15 amp circuit! Even the 1/3 power rating was like 9 amps.
If I put one of these on without running another circuit....how will there be anything left over for the rest of the components like the RPTV, 2 channel amp, receiver, etc...
In comparison, my B&K Ref 4420 is capable of delivering 300 watts into 4 ohms and 75 amps peak current but only has a max draw of 6.8 amps. I guess the B&K stores power in the caps to use during peak flows.
Is this partly why pro amps tend to be less expensive watt for watt? Are they designed for area with multiple 20+ amp circuits?
Now, I don't pretend to be an electrical engineer...so could someone tell me if I'm wrong or right about these comments?
TIA
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Link Removed