Headphone Amp GR70 placement in HiFi system

[bbayburt]

My system is ZD3 DAC + ZP3 preamp + dual V3 MONO Blocks. all connected by XLR.
I would like to purchase GR70 also as a headphone amp. But I am not sure how to connect GR70 in my system.
Is it OK to use ZP3 RCA out to GR70 RCA in? In the GR70 schematic, this is not shown as an option. Please help me on this.

 

[Martin Roscos]

My system is ZD3 DAC + ZP3 preamp + dual V3 MONO Blocks. all connected by XLR.
I would like to purchase GR70 also as a headphone amp. But I am not sure how to connect GR70 in my system.
Is it OK to use ZP3 RCA out to GR70 RCA in? In the GR70 schematic, this is not shown as an option. Please help me on this.

I don’t see why not. Seems a sound idea

 

[joqueval]

Hi @bbayburt
You have several options.
Connect the ZD3 directly to the GR-70, and then choose whether you want it to be a headphone amp only or send it to the ZP3 via an RCA input.
This way, you'll have both the pure balanced and tube-processed sound options of the ZD3.

 

[Mbonadio]

I have a question about this. I also have a zp3 and am thinking about adding a gr70 as a headphone amp to the zp3 rxa out. I also output to v3 amps via XLR and can switch them off when needing headphone only.

However I also use the high pass filter on my zp3 and have a dedicated subwoofer - I don’t think this method of connecting the gr70 will work - the will still receive low frequency signal…