Doc modding Marantz imperial 7

A place for DIY project discussions.
User avatar
Latteman
Posts: 1220
Joined: Tue Aug 14, 2018 7:20 pm
Location: S. Yorkshire
Has thanked: 553 times
Been thanked: 297 times
Contact:
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by Latteman »

Sounds like u will be able to fill them with sand etc and run the cable inside- good find- add a circle base and bingo Art Deco speaker stands- £200 pair
These users thanked the author Latteman for the post:
karatestu (Sat Jan 15, 2022 10:48 am)
Analogue Source -
Denon DP47f- Ortofon mc20 supreme
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- IfI stream, Ifi Neo idsd Dac; Tidal / Radio Paradise
Amplification Nva 30vdc mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

User avatar
karatestu
Posts: 5945
Joined: Sun Jan 08, 2017 4:40 pm
Location: North Yorkshire
Has thanked: 1865 times
Been thanked: 1378 times
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by karatestu »

Art deco eh ?

"What defines the Art Deco style?

What is Art Deco? Art Deco is a popular design style of the 1920s and '30s characterized especially by sleek geometric or stylized forms and by the use of man-made materials. "

Plastic is defo a man made material :grin: The hourglass shape is definitely sleek geometric in my book. I am starting to visualise it now in my living room.

Ticks a lot of boxes. Lightweight, sleek shape that will merge with the sphere on top very nicely I think. Can be filled if required, doesn’t cost much and will require only a small amount of modification if any.

I can just visualise the sound wave elegantly wrapping round the smoooooth curves of the sphere and flowing graciously down the voluptuous (Julie Powell) hour glass shaped stand where it lovingly meets it's climax and relaxes itself into the warm embrace of a luxury shag carpet :grin: :grin: :grin:
These users thanked the author karatestu for the post (total 2):
antonio66 (Sun Jan 16, 2022 6:50 pm) • r3xj0hn570n (Sun Jan 16, 2022 9:21 pm)
DIY FREE ZONE

antonio66
Posts: 1006
Joined: Mon Jul 29, 2019 8:16 am
Location: Grimsby/Phnom Penh
Has thanked: 1449 times
Been thanked: 408 times
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by antonio66 »

You'd better go easy on whatever books your reading Stu :grin:

User avatar
karatestu
Posts: 5945
Joined: Sun Jan 08, 2017 4:40 pm
Location: North Yorkshire
Has thanked: 1865 times
Been thanked: 1378 times
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by karatestu »

antonio66 wrote: Sun Jan 16, 2022 6:52 pm You'd better go easy on whatever books your reading Stu :grin:
Sprung :grin: My mum has an extensive Barbara Cartland collection :lol:

Those stools are out of stock everywhere I have looked so far, not looked everywhere though. They are made in France I believe and J think they are available from there but more expensive.

Brexit strikes yet again :violin:
DIY FREE ZONE

User avatar
Fretless
Posts: 9290
Joined: Wed Nov 12, 2014 12:15 pm
Location: Somewhere in Holland
Has thanked: 1487 times
Been thanked: 2280 times
Netherlands

Re: Doc modding Marantz imperial 7

Unread post by Fretless »

karatestu wrote: Sun Jan 16, 2022 1:41 pm I can just visualise the sound wave elegantly wrapping round the smoooooth curves of the sphere and flowing graciously down the voluptuous (Julie Powell) hour glass shaped stand where it lovingly meets it's climax and relaxes itself into the warm embrace of a luxury shag carpet :grin: :grin: :grin:
Brilliant! :clap:
These users thanked the author Fretless for the post:
karatestu (Tue Jan 18, 2022 6:26 am)

Upstairs:
Vinyl
Pro-Ject 1.2 + Grado Sig Jr + Cambridge Alva Duo
DigiVolumio PC + Kiss DP-500 + Sabaj A20d
NVA: P50sa - Cube2 - SSP - LS6+ Sabaj A10a (x2)
Downstairs:
Vinyl
Logic DM101 + Syrinx LE1 + Grado Sig MCX
DigiDenafrips Ares II + Volumio PC + Cambridge CXC
NVA: P50 - BMU+ Aiyima A07 MAX (x2) + Arcam One
HP: HifiBerry Digi+ PRO + Sabaj A10d
Office:
Allo DigiOne SIG + SMSL M300se + Douk G4 (x2)
Mission 760 + Monolith THX AAA 887
Headphones: German Maestro, Monolith & AQ

Grumpytim
Posts: 527
Joined: Fri May 19, 2017 11:03 am
Has thanked: 354 times
Been thanked: 330 times
Columbia

Re: Doc modding Marantz imperial 7

Unread post by Grumpytim »

Fretless wrote: Mon Jan 17, 2022 12:52 pm
karatestu wrote: Sun Jan 16, 2022 1:41 pm I can just visualise the sound wave elegantly wrapping round the smoooooth curves of the sphere and flowing graciously down the voluptuous (Julie Powell) hour glass shaped stand where it lovingly meets it's climax and relaxes itself into the warm embrace of a luxury shag carpet :grin: :grin: :grin:
Brilliant! :clap:
I thought this was a journey of aural self discovery, not oral.

Oh well wrong forum.. :shhh:
These users thanked the author Grumpytim for the post:
karatestu (Tue Jan 18, 2022 6:26 am)

User avatar
karatestu
Posts: 5945
Joined: Sun Jan 08, 2017 4:40 pm
Location: North Yorkshire
Has thanked: 1865 times
Been thanked: 1378 times
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by karatestu »

Back to reality :whistle:

Just parking this link here about baffle shape, baffle step loss, diffraction (re radiation) and phase.

https://audiojudgement.com/speaker ... action/

Back to the stool - Argos have them in white. Black is nowhere to be found except in France from a seller who has a very bad reputation. So it looks like I'll have to get white and paint it. It is made of polypropylene so not easy to get finishes to stick. I did have good results with polyethylene from sanding, flame treating before spraying on plastidip primer then plastidip top coat.

Who knows when black will be available in the UK again. I think the only have white because it is less popular and they have some stock remaining. Annoying but hey, at least I don't have to go with gloss and the spheres and integral stands can all be finished the same.
DIY FREE ZONE

User avatar
karatestu
Posts: 5945
Joined: Sun Jan 08, 2017 4:40 pm
Location: North Yorkshire
Has thanked: 1865 times
Been thanked: 1378 times
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by karatestu »

Peter, are you still loving the passive radiator assisted mid bass ? I take it your up firing driver is the mid bass and down firing is the PR ? Or do you have it the other way round ?
DIY FREE ZONE

User avatar
Latteman
Posts: 1220
Joined: Tue Aug 14, 2018 7:20 pm
Location: S. Yorkshire
Has thanked: 553 times
Been thanked: 297 times
Contact:
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by Latteman »

karatestu wrote: Wed Jan 19, 2022 8:11 am Peter, are you still loving the passive radiator assisted mid bass ? I take it your up firing driver is the mid bass and down firing is the PR ? Or do you have it the other way round ?
Yes it’s still going strong.
Passive down firing 👍🏼
These users thanked the author Latteman for the post:
karatestu (Wed Jan 19, 2022 1:56 pm)
Analogue Source -
Denon DP47f- Ortofon mc20 supreme
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- IfI stream, Ifi Neo idsd Dac; Tidal / Radio Paradise
Amplification Nva 30vdc mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

User avatar
karatestu
Posts: 5945
Joined: Sun Jan 08, 2017 4:40 pm
Location: North Yorkshire
Has thanked: 1865 times
Been thanked: 1378 times
Great Britain

Re: Doc modding Marantz imperial 7

Unread post by karatestu »

Nice one Peter, I'm glad you are enjoying it. You get the benefits of bass reflex without the chuffing and farting.

I managed to order one of the black stools from Argos after all. Only available to collect from one particular store near me after Tuesday next week. They will text me to tell me when it has arrived. We will have to see if it actually arrives.
These users thanked the author karatestu for the post (total 2):
Latteman (Thu Jan 20, 2022 9:11 am) • antonio66 (Fri Jan 21, 2022 1:04 am)
DIY FREE ZONE

Post Reply