• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

.

Palladium

Addicted to Fun and Learning
Joined
Aug 4, 2017
Messages
630
Likes
769
I'm curious, is there a good reason why it is so how to get sub-1 ohm headphone outputs?
 

amirm

Founder/Admin
Staff Member
CFO (Chief Fun Officer)
Joined
Feb 13, 2016
Messages
44,368
Likes
234,386
Location
Seattle Area
I'm curious, is there a good reason why it is so how to get sub-1 ohm headphone outputs?
It is a function of the amplifier IC they chose. It requires a minimum output impedance or it will oscillate. It also helps as a protection circuit against momentary shorts as you plug and unplug things although I think the Topping products have a protection circuit for this.
 
OP
Grave

Grave

Senior Member
Joined
Jun 30, 2018
Messages
382
Likes
204
I scanned the measurements. The A30 measurements might be interesting to look at since Amir has not measured it yet.
 

Attachments

  • D30.pdf
    477.5 KB · Views: 318
  • A30.pdf
    777.8 KB · Views: 325
Last edited:
Top Bottom