Hafler DH 101 connection to Hafler DH 200

[DoctorJames]

I need help connecting my Hafler DH 101 pre amp to my Hafler DH 200 amp. I’ve tried numerous configurations but to no avail. I know it works because I just auditioned it at a friends house but he kept all of the connecting cables. Schematics or step by step instructions would be appreciated. Thanks James

 

[orsen]

i believe you want the output to your amp
ext patch is for an eq

 

[Blue Shadow]

first hit on search gets hifiengine which has the manuals for both. If you can register and then log-in you can download them. Some have been complaining about the engines (vinylengine, too) currently not taking new registrations. Manual might be on the web in other places, too.

 

[DoctorJames]

View attachment 2628680


i believe you want the output to your amp
ext patch is for an eq[/

 

[DoctorJames]

I’m all over that but still no luck. I’m trying to hook my TT to it but it’s not working.

 

[DoctorJames]

first hit on search gets hifiengine which has the manuals for both. If you can register and then log-in you can download them. Some have been complaining about the engines (vinylengine, too) currently not taking new registrations. Manual might be on the web in other places, too.

I

 

[DoctorJames]

I

I’ve downloaded both manuals but believe it or not there are no schematics showing how to connect them. I’m missing something but I don’t know what. I’m trying to run a TT through it and I can’t.

 

[Dswankey]

@DoctorJames

Slow down and stop multi posting, forget about your TT for the moment and let's focus on the basics,

On the back of the DH-200 you'll see 2 connections labeled "input" one for the left channel and the other for the right channel



You'll will connect your RCA cables from the back of the DH-101 where it says "output" to the corresponding left/right connections.



Let us know that you've gotten this far and then we can discuss the TT

 

[Dswankey]

I’ve downloaded both manuals but believe it or not there are no schematics showing how to connect them.

Schematics are more associated with internals for repair purposes.

A connections diagram is what you want and it is indeed in the manual for the DH-101 see page #2

https://hafler.com/pdf/archive/DH-101_preamp_man.pdf

 

[62vauxhall]

There are jumpers which join the DH101’s input to output external processor jacks. If there are none, no signal will get to the power amp.

 

[Blue Shadow]

There are jumpers which join the DH101’s input to output external processor jacks. If there are none, no signal will get to the power amp.

And he meant to continue with the solution of using a RCA cable if you don't have jumpers.

 

[Dswankey]

@DoctorJames can you confirm if you or do not have the jumpers, they'll look like this

 

[Old-School]

Are you with me Doctor Wu
Are you really just a shadow
Of the man that I once knew
Are you crazy are you high
Or just an ordinary guy
Have you done all you can do
Are you with me Doctor???????

 

[goodolpg]

Did a QUICK Google images search, found a few shots of the back of a101, about half show no jumpers.
Is there some sort of switch or internal jumper option?

 

[DoctorJames]

@DoctorJames

Slow down and stop multi posting, forget about your TT for the moment and let's focus on the basics,

On the back of the DH-200 you'll see 2 connections labeled "input" one for the left channel and the other for the right channel

View attachment 2628989

You'll will connect your RCA cables from the back of the DH-101 where it says "output" to the corresponding left/right connections.

View attachment 2628942

Let us know that you've gotten this far and then we can discuss the TT

 

[DoctorJames]

Yes sir. I’m with you so far. I really appreciate the help.

 

[DoctorJames]

@DoctorJames can you confirm if you or do not have the jumpers, they'll look like this

View attachment 2629035



View attachment 2629028[/QUOTE

 

[DoctorJames]

And I DO NOT have the jumpers.

 

[DoctorJames]

There are jumpers which join the DH101’s input to output external processor jacks. If there are none, no signal will get to the power amp.

 

[DoctorJames]

I’m figuring that out from the help I’m getting, but even connecting with RCA cables still no luck.