RainbowPilot
Member
I was given a Nikko 501 this weekend by a relative and by habit I always check the DC offset on amps before I hook them up. I measured nearly 9V of DC on the terminals and got a little worried. I decided to hook a pair of tester speakers and it sounded great, measured DC at the terminal with the speaker connected and it had dropped to about 13mv. Does this mean that the amp is capacitor coupled?
I have very little electrical knowledge so bear with me please. I read that a light bulb tester could be helpful so I soldered some speakerwire to light bulb and hook it up to the terminal but didn't see it light up in any way. If i'm totally off base here let me know. I also read that most CC amps will have 3 large filtering caps while DC coupled amps only have 2. The Nikko only has 2 large filtering caps from what I could see so i'm very confused. Any help would be much appreciated, I just don't want to hook up any nice speakers to this until i'm confident it's safe.
I have very little electrical knowledge so bear with me please. I read that a light bulb tester could be helpful so I soldered some speakerwire to light bulb and hook it up to the terminal but didn't see it light up in any way. If i'm totally off base here let me know. I also read that most CC amps will have 3 large filtering caps while DC coupled amps only have 2. The Nikko only has 2 large filtering caps from what I could see so i'm very confused. Any help would be much appreciated, I just don't want to hook up any nice speakers to this until i'm confident it's safe.