Hi
I recently got me a HK6350R amp in good shape and fully working order.
It sounds sweet with CD or Tuner but somehow a bit underwhelming with
phono as source. I checked the MC-Input and the MM-Input with Step-Up.
(cart DV23RS/II,step-up DV6X).
Probably i can better it by changing the lytics with better ones and also
remove all parts inside the boxes with (G),(GB) on it.
Am i on the right track here ?
Advise is very welcome. Thanks.
I recently got me a HK6350R amp in good shape and fully working order.
It sounds sweet with CD or Tuner but somehow a bit underwhelming with
phono as source. I checked the MC-Input and the MM-Input with Step-Up.
(cart DV23RS/II,step-up DV6X).
Probably i can better it by changing the lytics with better ones and also
remove all parts inside the boxes with (G),(GB) on it.
An externally hosted image should be here but it was not working when we last tested it.
Am i on the right track here ?
Advise is very welcome. Thanks.
Yes well,that much i figured.
The thing is ,as i mentioned, the parts in the boxes on the
schematics. I just wanna ask if they possibly influence the
sound and can i safely remove them.
I have the german model of the amp (G,BG) and compared to
the US-Model additional components are placed everywhere.
Especially in the phonoeq.
Im not a experienced DIYer and thats the reason why i seek
advise here.
The thing is ,as i mentioned, the parts in the boxes on the
schematics. I just wanna ask if they possibly influence the
sound and can i safely remove them.
I have the german model of the amp (G,BG) and compared to
the US-Model additional components are placed everywhere.
Especially in the phonoeq.
Im not a experienced DIYer and thats the reason why i seek
advise here.
Last edited:
I have already pointed to the most likely culprit.
Electronic components like diodes, transistors etc dont wear out.
Have you even looked at the schematics ?
I made a more specific question. For that im
looking for a answer.
I made a more specific question. For that im
looking for a answer.
My answer is still the same, swap out electrolytics and test it again.
If it still doesnt sound right then there must be a fault or a design fault.
If it still doesnt sound right then there must be a fault or a design fault.
Well,in addition i think i can get safely rid of
all those inductances,resitors and caps that
were added in the german model (named G,BG)
and change the resistors before the input FET
to the original values.
All those parts in the signal path cant be healthy.
I realy dont think there is a design fault in the
original design which is the US-Version.
all those inductances,resitors and caps that
were added in the german model (named G,BG)
and change the resistors before the input FET
to the original values.
All those parts in the signal path cant be healthy.
I realy dont think there is a design fault in the
original design which is the US-Version.
You could take them out but beware of getting noise from RF or out of band noise.
I always have an RF filter on the front end.
They are there to ensure compliance with European regulations on received interference for the CE marking. There is an increased risk of interference from radio transmitters etc without the parts but in 90% of cases it will not be a problem. It should indeed improve the sound, especially on MC phono.
European regulations of received interference for the CE marking ?
Suspected that some BS was behind this.
I have also a decade older amp from Kenwood. Without this additional
filtering on the phonoinputs and it works and sounds great. I think im
on the safe side to get rid of them. Thanks for explaining the facts
to me jez.
And while the soldering iron is hot i will change the electrolytic
caps with Elna RFS types of the same value. (Dont know what that will do
but it cant be harmful.) Also R645/R646/R651/R652 will be changed to
the original US-Version values. I expect to experience than the phonoeq
like originaly intended by HK.
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