Bottlehead Forum

Bottlehead Kits => Mainline => Topic started by: currly30 on June 01, 2022, 12:28:08 PM

Title: Having 2 headphones plugged in at once?
Post by: currly30 on June 01, 2022, 12:28:08 PM
I was wondering if it is safe to run a headphone on both of the outputs at the same time?

I didn't notice this till recently but both of the outputs on the Mainline produces sound at the same time. I often leave my HD650s plugged into the 1/4 jack while using the XLR jack to power other headphones. I thought the balanced switch worked like a kill switch between the 2 outputs. Is there any danger from having 2 headphones plugged in at the same time? especially since the HD650 are 300ohms and the other headphones I have been plugging in are around 30ohms. Would having such a large difference between ohms on the 2 headphones cause driver issues or cause improper amounts of power being sent to the lower ohm headphones?
Title: Re: Having 2 headphones plugged in at once?
Post by: Paul Birkeland on June 01, 2022, 12:33:43 PM
It's unlikely that you're gong to cause damage unless you are listening to something like the HD650 and you have the other headphones still plugged in, as this will produce a very loud listening level out of the HD650.

The balanced/unbalanced switch moves grounds around but otherwise leaves the circuit alone.
Title: Re: Having 2 headphones plugged in at once?
Post by: currly30 on June 01, 2022, 12:42:11 PM
It's unlikely that you're gong to cause damage unless you are listening to something like the HD650 and you have the other headphones still plugged in, as this will produce a very loud listening level out of the HD650.

The balanced/unbalanced switch moves grounds around but otherwise leaves the circuit alone.

Thank you for the response. Figured I just make sure .