Audiotec Fischer Helix H400 esprit HXA400MK2 amp dyno car audio amplifier power & sound quality test

This video features a german made four channel car audio amplifier manufactured by audiotec fischer - The Helix H400 esprit ! I found a label on the mainboard and under the label it says: " HXA400MK2 "
The amp was working with music but quit the job under load and driven to almost full power. One channel clipped much earlier and went into protection.
I was running out of time for video production and editing , and i was very lucky that i managed it to fix it quickly and found working substitutes with quick delivery to finally present the video to all of you after the repair!
Amp was also user supported! Thanks again!!
The audiophile test track was made by @omegametroid93
If you want the Audiokeller-Basstrack - get the original right here:
www.audiokelle...
#helix
#audiotec
#caraudio

[@chloeleedow7250]

Damn bro, never seen a dyno test with included amp repair lol love it erned a sub bro. ❤

[@audiokeller1975]

Thank you 👍👌😀

[@Elektronenregen]

Die H 400 hatte ich auch mal im Auto. Ich weiß aber nicht mehr ob es die Esprit war oder eine andere Version. Ich mochte das Teil, auch schön anzusehen mit den Spiegeleitransistoren (TO-3 Bauform) und den LEDs auf dem Board.
Danke für das Video!

[@audiokeller1975]

Gern geschehen, die ist wirklich zu schade um sie versteckt zu montieren👍

[@jarvislarson6864]

Wow 67% efficiency from ab amp is fairly good

[@audiokeller1975]

Yes, some fosgate ABs exceed even 70% 👍

[@javiermazuquin2019]

@@audiokeller1975 whow !!! cuales serian esos modelos ? alguno de 4 canales para recomendar ? desde ya gracias , muy buenos videos !! saludos desde Argentina !

[@jarvislarson6864]

Man I bet with those to220 transistors it is a clean sounding amp

[@audiokeller1975]

The outputs are TO-3 Transistors not TO-220 👍

[@brian6029]

Nice 😎👍👍

[@charlesbolano7148]

Hello, nice video as usual!
Are you testing the Punch 500-1bdcp amp next? I have the Punch 700-1bd!
Thanks.😊

[@audiokeller1975]

I still have clips to edit of different amps but I’m really curious so it’s possible that I am testing it next
If I have the time👍

[@georgeelve1058]

Thats really not very much power for the rediculous price. Are the parts expensive?

[@audiokeller1975]

Price for outputs is 2-3x higher than outputs installed in Rockford amps I repaired so far

[@audiokeller1975]

Build quality was also nice, it was a pleasure to work on this amplifier 👍

[@icarusrising728]

B Roll nightmare

[@chloeleedow7250]

Looks class AB yeah?