Hello, nice video! I thought you had given up on Punch amplifiers. Do you know which amplifier is better between the punch 300s, and the punch 250.2? They both have similar power ratings (about 100w continuos per ch at 4 ohms), and they look exactly the same inside! I'm planning on maybe buying a Punch 300s. Thanks😊.
I will never stop doing punch amplifier videos 😊 I’m going to get confused about all that model numbers but maybe sometimes they put the same amp into a different heatsink? In future i will create a discussion board where all can register and write everything including posting pics. It’s way easier and comfortable than posting comments on TH-cam 😃
@@audiokeller1975 I was just kidding, about you quitting Punch amps! I can tell you're a big fan, and I am too! If you had to choose between the Punch 300s or the Punch 250.2 amp, which will you pick? Thanks.
This is disturbing to me..I know the designer well. I will contact him tonite..I will discuss the shutdown circuit.. where can we see the b+ voltage ? I want to figure out why the amp pulls back. I wonder if the +- 15 volt rails are swinging. Or is the main rails..or the b+. Can you take picture of main board please. Does the punch 40 dsm have this same tendency? Or not.. im discussing the one with the stand up driver and preamp boards? We will find out..
The b+ voltage goes down from 13.7V to 13.6V when testing bigger amps, I tested the power 50M which did well 1ohm continuous. Lots of amps I tested continuous did the same at 1 Ohm. Maybe protection circuit to reduce repairs? Have you seen or worked with the powercube back in the days?
I had a punch 200 (I think, it's been a while) I flush mounted it in between two flush mounted Kicker Competition 12" subs it looked awesome till someone stole it.
All? Why did you do that? Were all caps leaking ? Usually I only change caps if they got bumpy or the ESR increased. The SMD 10uF 16V caps caused problems in the early 90s. I heard also different opinions about the b+ filter caps.
Makes me sad everyone replaces caps..its incorrect teaching. If you do it. Do it 1 at a time and test between each one.. antiques should be antiques..especially the old hand built fosgates that I made
![30 ชั่วโมงคนเดียว บนรถไฟชั้น 3 โซเวียต [Around The World Ep. 2]](http://i.ytimg.com/vi/MlE9boAVqDA/mqdefault.jpg)
Beste Punch Serie... egal wo ich sie je gehört habe, war das Resultat stets beeindruckend.
Wirklich top....👍🆙️
Hello, nice video! I thought you had given up on Punch amplifiers.
Do you know which amplifier is better between the punch 300s, and the punch 250.2? They both have similar power ratings (about 100w continuos per ch at 4 ohms), and they look exactly the same inside! I'm planning on maybe buying a Punch 300s. Thanks😊.
I will never stop doing punch amplifier videos 😊
I’m going to get confused about all that model numbers but maybe sometimes they put the same amp into a different heatsink? In future i will create a discussion board where all can register and write everything including posting pics. It’s way easier and comfortable than posting comments on TH-cam 😃
@@audiokeller1975 I was just kidding, about you quitting Punch amps! I can tell you're a big fan, and I am too!
If you had to choose between the Punch 300s or the Punch 250.2 amp, which will you pick? Thanks.
From which year is the 250.2 ?
@@audiokeller1975 It's 1 year older, than the Punch 250a2!
Is it the power 250.2 ?
This is disturbing to me..I know the designer well. I will contact him tonite..I will discuss the shutdown circuit.. where can we see the b+ voltage ? I want to figure out why the amp pulls back. I wonder if the +- 15 volt rails are swinging. Or is the main rails..or the b+. Can you take picture of main board please. Does the punch 40 dsm have this same tendency? Or not.. im discussing the one with the stand up driver and preamp boards? We will find out..
The b+ voltage goes down from 13.7V to 13.6V when testing bigger amps, I tested the power 50M which did well 1ohm continuous. Lots of amps I tested continuous did the same at 1 Ohm. Maybe protection circuit to reduce repairs? Have you seen or worked with the powercube back in the days?
Power cube is representation of ohms law...faithfulness.. more or less..
The tests made with the powercube are not continuous, it’s dynamic signal with a 1kHz burst with 20cycles with 480ms pause. No problem for the amp
I had a punch 200 (I think, it's been a while) I flush mounted it in between two flush mounted Kicker Competition 12" subs it looked awesome till someone stole it.
It’s quite often that I read that people steal someone’s car audio system ☹️
i have one of these, changed all capacitors just in case
All? Why did you do that? Were all caps leaking ? Usually I only change caps if they got bumpy or the ESR increased.
The SMD 10uF 16V caps caused problems in the early 90s. I heard also different opinions about the b+ filter caps.
@@audiokeller1975 i think all old parts were ok in my case, it was good practice
Makes me sad everyone replaces caps..its incorrect teaching. If you do it. Do it 1 at a time and test between each one.. antiques should be antiques..especially the old hand built fosgates that I made
@@davidstevens7809 pioneer 904 and 802 amp had handful of bad capacitors and other loose components on board, those runs so hot