BBD mn3207 vs mn3007

[POTL]

Greetings
I want to understand if there is a need to use chips (or their re-release) of the first generation, capable of operating from 9-15 volts?
Will the effect be more voluminous if you run the BBD and LFO from 15 volts? Or the depth and intensity of the effect won't change with tension?
Usually when comparing effects between 9 and 18 volts we notice more headroom, better signal-to-noise ratio, less clipping.
Modern stompboxes are almost always equipped with 320 series delay lines *, these chips can be seen from MXR / BOSS / JHS / Walrus and many other manufacturers. The 300 * series chips are increasingly rare (price does the trick) and are mostly found in old-school boutique devices like the Analogman.
Judging by comparisons on the Internet, the sound is not different or the difference is less noticeable.
I'm interested in the following.
1) Will the MN3007 15 volt sound better than the MN3207 9 volt? Noise, depth of effect. Or is the MN3207 adapted to work with 9 volts and gives the same result as the MN3007 with 15 volts?
2) LFO works from 9 and 15 volts, the depth of LFO oscillation will be different, will this affect the sound of the effect? Modulation depth, width?
3) Most modern modulation effects have a tap tempo and you can do it yourself, but the LFO tep tempo only works from 5 volts. Does it make sense to power the chip from 15 volts if the LFO operates from 5 volts?
4) Judging by the datasheets, the delay time in the 320 * series has a larger range, as far as I understand, the effect can be more magnificent, especially on the flanger?

[Ripthorn]

I have the PCB of an old Ibanez chorus pedal right here with me. It uses MN3207 and MN3102. These are both powered by a 5V regulator, so using a higher voltage level in this circuit only means more power dissipation across the regulator, which makes it work harder and potentially requires a larger regulator. I can't answer the other questions, though, but I bet you could run an LFO at 5V and it would perfectly happy. LFO doesn't govern signal headroom.

[POTL]

I have the PCB of an old Ibanez chorus pedal right here with me. It uses MN3207 and MN3102. These are both powered by a 5V regulator, so using a higher voltage level in this circuit only means more power dissipation across the regulator, which makes it work harder and potentially requires a larger regulator. I can't answer the other questions, though, but I bet you could run an LFO at 5V and it would perfectly happy. LFO doesn't govern signal headroom.

Thanks for the answer.
It's funny, but I didn't write the word "volume", I meant the width of the effect.
But the translator translated it differently 

[DrAlx]

1) Comparing 3207 to 3007, BBD gain is larger on the 3207 (assuming you have the same load on BBD outputs). SNR is better on the 3007 but that mainly comes from running it at 15V. SNRs are not too different if both are run at 9V.
2) If you have the standard triangle/square wave LFO producing a control voltage for a VCO, then modulation will typically change when running at 15v vs 9V.  It's not the LFO itself but the combined LFO/VCO combination that will sweep differently. So sweep range or sweep ratio will not be the same.
3) You can run the BBD at a different voltage from the LFO/VCO so long as you use a 4049/4050 clock buffer powered at same supply as BBD (since buffer chip is a level converter also).
4) Both the 3007 and 3207 need to be clocked to over 1MHz to get sub millisecond delays.  Can't say how much of an advantage that the 3207 has over the 3007.

[POTL]

Thanks