JPW P1 Doc Mods

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Daniel Quinn
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Re: JPW P1 Doc Mods

Unread post by Daniel Quinn » Wed Sep 28, 2016 7:22 am

£50 paid to nvahifi email.
Even a stroke didn't result in me liking AOS

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Quarknosis
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Re: JPW P1 Doc Mods

Unread post by Quarknosis » Wed Sep 28, 2016 3:30 pm

Dr Bunsen Honeydew wrote:Thanks for the link, I have made it a sticky.

No P&P at cost has to applied as I hope some / most can be collected. Packing safely is a pain, even more so with tweeters after mods.
Unfortunately collection is not an option for me. How much would P&P be?

I'm still not sure whether to go for Doc Mod drivers for the JPWs or just go for Cubettes. One of the things putting me off Cubettes is that I would probably need new stands to get the tweeters at a similar height as they are now unless I was to put something between them and my current stands. Approx. £200 for Doc Mod mid/bass drivers and tweeters versus £330 for Cubettes :-?
NVA BMU - NVA Phono 1 - Systemdek IIX/Rega RB250/Denon DL160 & Philips CD 104 with NOS mod - TIS & SSP mkii - NVA AP70sa - Epos ES11.

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Dr Bunsen Honeydew
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Re: JPW P1 Doc Mods

Unread post by Dr Bunsen Honeydew » Wed Sep 28, 2016 3:35 pm

Cubettes are £350 now.

Drivers £170

£10 would cover the sending for drivers.
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Quarknosis
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Re: JPW P1 Doc Mods

Unread post by Quarknosis » Wed Sep 28, 2016 4:07 pm

Sorry, I think I have confused matters, I was trying to get an idea of how the total costs compared.

I am just looking to buy the mid/bass drivers at the moment, which according to the link would be £120 + £10 P&P as you have said above, if that is correct I will send payment tonight.
NVA BMU - NVA Phono 1 - Systemdek IIX/Rega RB250/Denon DL160 & Philips CD 104 with NOS mod - TIS & SSP mkii - NVA AP70sa - Epos ES11.

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Quarknosis
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Re: JPW P1 Doc Mods

Unread post by Quarknosis » Thu Sep 29, 2016 5:31 am

Hi Doc, payment sent via PPG for a pair of the 8 inch mid bass Doc Mod drivers.

I've got a couple of pairs of soft dome tweeters that were previously in other speaker projects that I am thinking of trying, a pair of Morel DMS20 and an unbranded pair that I purchased several years ago but do sound quite good in the current speaker.
NVA BMU - NVA Phono 1 - Systemdek IIX/Rega RB250/Denon DL160 & Philips CD 104 with NOS mod - TIS & SSP mkii - NVA AP70sa - Epos ES11.

Daniel Quinn
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Re: JPW P1 Doc Mods

Unread post by Daniel Quinn » Fri Sep 30, 2016 11:42 am

Tweeters arrived yesterday. Much appreciated that doc :clap:

Fitted . They look much better imo.

Fitted with clarity caps 4.7 uf caps measured to % tolerance and 15 ohm resistor. Far to dull . Removed the resistor so now just a cap on postive terminal. That's much better. Now undecided on some records sounds fine. Some two much especially if volume is increased , more experimenting needed.
Even a stroke didn't result in me liking AOS

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SteveTheShadow
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Re: JPW P1 Doc Mods

Unread post by SteveTheShadow » Fri Sep 30, 2016 11:56 am

Try dropping the cap value to 3.3uF. Crossover point is probably too low. 3.3uF willl raise it a bit.
DIY NVA amplification ( roughly equivalent to NVA A60) BTE Designs passive preamp, BTE Designs Lenco L75 turntable, Rega R200 arm, Goldring E3 cartridge, NVA Phono 1
Musical Fidelity M1 DAC, AppleTV4 with Apple Music subscription, ripped CDs streamed via WD MyCloud Home Duo NAS, with PLEX media server.
Speakers - Large sealed cabs, with Fane 12-250-TC 12" full range drivers.

Daniel Quinn
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Re: JPW P1 Doc Mods

Unread post by Daniel Quinn » Fri Sep 30, 2016 12:00 pm

I don't currently have a 3.3 uf. Waiting for it. :angry-steamingears:
Even a stroke didn't result in me liking AOS

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Dr Bunsen Honeydew
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Re: JPW P1 Doc Mods

Unread post by Dr Bunsen Honeydew » Fri Sep 30, 2016 12:03 pm

About 10 ohm probably best. Also they are unused tweeters which are now doped so will need a couple of days run in and for the doping to loosen up.
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Daniel Quinn
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Re: JPW P1 Doc Mods

Unread post by Daniel Quinn » Fri Sep 30, 2016 5:32 pm

I have left them as is for now. 4.7uf cap only. They are sounding fine.
Even a stroke didn't result in me liking AOS

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