FiiO Q7 Portable Desktop-Class DAC and Headphone Amplifier Discussion & Impressions Thread
Dec 29, 2022 at 6:47 PM Post #467 of 714
Thanks!

https://audio46.com/products/ifi-4-4-to-xlr-cable
I'm sure the materials are quality based on the price alone.

I found this one...
https://a.co/d/0o9CyBj
It looks good. I see they also connected the ground pin, which wasn't the case for a cheap cable I found, and which is why at the time I went for the more expensive ifi cable.

51bq5d5XUxL.jpg
 
Dec 29, 2022 at 9:41 PM Post #468 of 714
It looks good. I see they also connected the ground pin, which wasn't the case for a cheap cable I found, and which is why at the time I went for the more expensive ifi cable.

51bq5d5XUxL.jpg
Yes, the quality of signal transmission will be better when connected to the ground
 
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Jan 3, 2023 at 11:09 PM Post #473 of 714
I've been playing with the Q7 extensively. I'm still kind of new at this. Help me understand and please explain...

Is there a way to use the Q7's DAC directly into an external Preamp? Bypassing the Q7's own preamp and amp. I'll be using the external Preamp into active Monitors.
The external Preamp has it's own volume control.
 
Jan 4, 2023 at 12:07 AM Post #474 of 714
I've been playing with the Q7 extensively. I'm still kind of new at this. Help me understand and please explain...

Is there a way to use the Q7's DAC directly into an external Preamp? Bypassing the Q7's own preamp and amp. I'll be using the external Preamp into active Monitors.
The external Preamp has it's own volume control.
Just set the desired output jack to line out with a fixed volume level and you are done.
 
Jan 4, 2023 at 12:25 AM Post #475 of 714
Just set the desired output jack to line out with a fixed volume level and you are done.
So, set to LO and pick a volume level and leave it? Would that be max volume? Is there an ideal volume level.

I had thought LO was a fixed non- adjustable level. I'm a little confused. Does LO bypass the Q7's preamp and amp?
 
Jan 4, 2023 at 12:33 AM Post #476 of 714
So, set to LO and pick a volume level and leave it? Would that be max volume? Is there an ideal volume level.

I had thought LO was a fixed non- adjustable level. I'm a little confused. Does LO bypass the Q7's preamp and amp?
The Q7 doesn't have a preamplifier, it is digital volume attenuator.
By setting the output to line out you bypass the headphone amplifier circuit and the line output level is set to maximum which is full scale 2V for the single ended and full scale 4V for the balanced.
 
Jan 4, 2023 at 6:57 AM Post #478 of 714
The Q7 doesn't have a preamplifier, it is digital volume attenuator.
By setting the output to line out you bypass the headphone amplifier circuit and the line output level is set to maximum which is full scale 2V for the single ended and full scale 4V for the balanced.
@Ichos

Thanks for the help. Bear with me. I'm getting there.

I have the Q7 set to Balanced LO with the 4.4mm balanced output connected to the XLR inputs of the external preamp.

With the Q7 set to balanced LO, above, the Q7 volume knob is still active. I can still turn the knob and control the music volume during playback on the Q7. Is this expected? (According to your comment, the level is set to full scale 4V for the balanced.)

Effectively this setup allows me two places to control volume. On the Q7 and on the external preamp.

Maybe I'm not understanding level vs volume. I thought using balanced LO the level out at the 4.4mm out is fixed @4V and the volume knob is not usable.

Or I crank up Q7 volume knob to max to avoid any digital volume attenuation out of the 4.4mm out. So the downstream external preamp sees the full 4V balanced swing.
 
Last edited:
Jan 4, 2023 at 7:01 AM Post #479 of 714
@Ichos

Thanks for the help. Bear with me. I'm getting there.

I have the Q7 set to Balanced LO with the 4.4mm balanced output connected to the XLR inputs of the external preamp.

With the Q7 set to balanced LO, above, the Q7 volume knob is still active. I can still turn the knob and control the music volume during playback on the Q7. Is this expected? (According to your comment, the level is set to full scale 4V for the balanced.)

Effectively this setup allows me two places to control volume. On the Q7 and on the external preamp.

Maybe I'm not understanding level vs volume. I thought using balanced LO the level out at the 4.4mm out is fixed @4V and the volume knob is disabled.
Use the LO Volume option in the main menu. You can set it to fixed or adjustable.
 
Jan 4, 2023 at 8:27 AM Post #480 of 714
@Ichos

Thanks for the help. Bear with me. I'm getting there.

I have the Q7 set to Balanced LO with the 4.4mm balanced output connected to the XLR inputs of the external preamp.

With the Q7 set to balanced LO, above, the Q7 volume knob is still active. I can still turn the knob and control the music volume during playback on the Q7. Is this expected? (According to your comment, the level is set to full scale 4V for the balanced.)

Effectively this setup allows me two places to control volume. On the Q7 and on the external preamp.

Maybe I'm not understanding level vs volume. I thought using balanced LO the level out at the 4.4mm out is fixed @4V and the volume knob is not usable.

Or I crank up Q7 volume knob to max to avoid any digital volume attenuation out of the 4.4mm out. So the downstream external preamp sees the full 4V balanced swing.
Go to main menu, highlight LO Volume , enter the sub menu and select Fixed level.

I assume that you have already selected BAL output and you have set it to LO.
 

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