• Welcome to ASR. 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!

DAC as a "preamp" (DO100 Pro?)

Sunsanvil

Member
Joined
Jul 25, 2021
Messages
61
Likes
48
I'm looking to make use of my Rokit 7 G4 speakers in a living room setting. Sources would be AppleTV/TV, CD Player, Bluetooth. I think something like the DO100 Pro would do the trick, but they dont actually market it as such. Are there any gotcha's to using one this way, or other suggestions which might work better? I also looked at the Tpping E70 which specifically mentions Pre-amp function...but is twice the price.
 
The DO100 Pro has volume control built in and can be plugged straight into your Rokits.
 
I'm looking to make use of my Rokit 7 G4 speakers in a living room setting. Sources would be AppleTV/TV, CD Player, Bluetooth. I think something like the DO100 Pro would do the trick, but they dont actually market it as such. Are there any gotcha's to using one this way, or other suggestions which might work better? I also looked at the Tpping E70 which specifically mentions Pre-amp function...but is twice the price.
This limitation of the DO100 Pro might be meaningful to you, especially in a multi-user household where not everyone understands how to control multiple connected components in the audio chain:

From https://www.amazon.com/ES9039Q2M-Balanced-Desktop-Bluetooth5-1-Support/dp/B0CZ8YZH65/
After the DO100 Pro's ARC is connected to a TV, the DAC does not support the TV's remote control to control the TV's volume, nor does it support synchronous power on and off.
 
This limitation of the DO100 Pro might be meaningful to you, especially in a multi-user household where not everyone understands how to control multiple connected components in the audio chain:

From https://www.amazon.com/ES9039Q2M-Balanced-Desktop-Bluetooth5-1-Support/dp/B0CZ8YZH65/
After the DO100 Pro's ARC is connected to a TV, the DAC does not support the TV's remote control to control the TV's volume, nor does it support synchronous power on and off.
Does that mean the DO100 Pro actually behaves exactly as described on Amazon?
Bildschirmfoto 2025-03-31 um 15.39.06.png


@B-Flow
Since multiple devices are connected to the DO100 Pro, it would be a good idea to always control the volume using the DO100 Pro's remote control.
 
I would like to use the DO100 first series ---strictly as a DAC (fixed line output), without any preamp or volume control. However, on my unit:

  • Turning the front knob still changes the output level
  • I cannot find any “Volume Mode” or “Fixed / Variable” option in the menu
  • I understand there is no firmware update available for the DO100
  • just cannot do anything????
 
I would like to use the DO100 first series ---strictly as a DAC (fixed line output), without any preamp or volume control. However, on my unit:

  • Turning the front knob still changes the output level
  • I cannot find any “Volume Mode” or “Fixed / Variable” option in the menu
  • I understand there is no firmware update available for the DO100
  • just cannot do anything????
Set the volume to Max and tape off the volume knob -> same result as a hypothetical Fixed option.
 
Full goes max to 99! --99 and a half won't do!
 
Full goes max to 99! --99 and a half won't do!
99 is the maximum volume displayed on the DO100. You can find this in many reviews and from many owners.
But it's just a display. The DAC chips will be at 0 dB anyway.

This type of display is actually nonsense for a DAC; the volume is normally indicated as 0 dB (full volume), and the attenuation is then shown as -XX.x dB.
 
Last edited:
Back
Top Bottom