2. amps-preamps
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New to preamp amp, turning on question

Hi All,

I am a noob when it comes to preamp and amp combo, I have never used it until recently I found a who was selling Parasound HCA2205a for $50. The amp works and looks new ,so I think I got a pretty good deal. However, it’s my first time using preamp and amp combo so I am a bit confused on how to use it. 
I don’t have a standalone preamp, so I am using integrated amp as a preamp(tested it on Hegel and anthem STR, both is giving me same issue so I think the amp has some problem). I know it works but when I turn on the preamp, and then the amp, sometimes it takes a good 1-2 mins (when the amp hasn’t been on for few hours) for the sound to come from the speaker. It seems like the signal is not going to the amp right away. Is that normal or is this amp is faulty or something? 
If I turn off the amp while it is working and wait few mins and turn it back on, the sound comes instantaneously. It’s only that if the entire system is off (for few hours) and I just turn it on, the sound doesn’t come for 1-3 mins until I hear a click sound from the amp? 
Appreciate any help on this. Thanks.   
morningrebel

Showing 1 response by reubent

reubent
7,080 posts
 
Sounds like a fault in your amp. If you Google Parasound HCA2205A, you'll find a link to the manual. Here's a cut/paste from the power-on section of the manual:

Standby/Normal Indicators

When you first turn the amplifier on, the Standby indicator will light for about five seconds while the internal circuits are stabilizing. After that, the Standby indicator turns off and the Normal indicator lights to signal that the amplifier is operational. -8- The Standby indicator will also light whenever there is a fault that triggers the protection circuitry. This may indicate one of the following conditions: DC present at the amplifier's input, a speaker impedance overload, a short circuited speaker line, or possible internal fault. If this indicator remains lit, remove power to the amplifier and check all connections. During this time, the protection circuits should automatically reset. If the Standby indicator stays lit after you reapply power, contact your Parasound Dealer, Installer or Parasound Technical Service for further advice.


To rule out an external source of the problem, unplug ALL connections from the amp, leave it powered off for overnight and turn it on with nothing connected. If it acts the same (long turn-on time), the fault is in the amp.

Could be why it was for sale for only $50.

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