Tube upgrade for AudioNote OTO PP Line

[sydney]

I'm exploring the possibilities for tube upgrades for my AudioNote OTO PP Line Integrated amplifier. Having limited/minimal knowledge hence any suggestions are welcome also from where I could procure these.

Current stock tubes are :
1 x 5670 | 2 x 6UA6 | 4 x 6005

 

[kvm]

Best to check with Aernoud; he could guide/deliver too.

 

[sydney]

Best to check with Aernoud; he could guide/deliver too.

Messaged Aernoud; he has suggested Mullard tubes for final stage as the only upgrade

 

[pks.k]

I'm exploring the possibilities for tube upgrades for my AudioNote OTO PP Line Integrated amplifier. Having limited/minimal knowledge hence any suggestions are welcome also from where I could procure these.

Current stock tubes are :
1 x 5670 | 2 x 6UA6 | 4 x 6005

May I know your entire setup like Dac,speaks and cables ?
Are you connected a subwoofer with oto pp amplifier?

 

[sydney]

Setup:
1. Allo USBridge signature
2. Chord Qutest
3. OTO PP
4. AN AZ3 speakers

No sub-woofers

 

[sydney]

Ordered the Mullards 6AQ5 -- 4 in no

 

[pks.k]

Ordered the Mullards 6AQ5 -- 4 in no

Is it possible to know the difference between stock GE vs Millard's sound in OTO PP ?
The cost for 4 ×mullards 6AQ5 sir?

 

[sunilj]

In my experience with vintage tubes, the SQ between brands is minimal. Great conversation starter though.

 

[Ramanuj]

Tubes are totally circuit dependent. What might sound great in one equipment will sound exactly opposite in the other.

 

[Hari Iyer]

I'm exploring the possibilities for tube upgrades for my AudioNote OTO PP Line Integrated amplifier. Having limited/minimal knowledge hence any suggestions are welcome also from where I could procure these.

Current stock tubes are :
1 x 5670 | 2 x 6UA6 | 4 x 6005

Consider Softone OPTs, they are R- core types, have low distortion and wide bandwidth.