Search found 5566 matches

by karatestu
Sun Oct 24, 2021 7:36 am
Forum: DIY
Topic: Doc modding Marantz imperial 7
Replies: 1932
Views: 433740
Great Britain

Re: Doc modding Marantz imperial 7

'Any thoughts Rex, Steve or anybody else' I should be used to being ignored by now :grin: I keep thinking about a mini line array with these 2"FR's. Two of em will give me an extra 3dB if they each have their own amps. Can't wire them in parallel as that would be a 1.8 ohm load. In series you g...
by karatestu
Sun Oct 24, 2021 7:23 am
Forum: General Audio
Topic: a couple of turntable restorations
Replies: 168
Views: 219889
Great Britain

Re: a couple of turntable restorations

antonio66 wrote: Sun Oct 24, 2021 12:28 am and so you should be, well done Ant, the tt and arm look fantastic.
I agree. You are a very talented young man. Oh that makes me sound old. My PL-71 is winging it's way to you soon Ant. Yeah I know I keep saying that but this time I mean it, honest. :animals-dogrun:
by karatestu
Sun Oct 24, 2021 7:16 am
Forum: Bake-Offs
Topic: Owston meet 27th November doncaster
Replies: 5
Views: 10577
Great Britain

Re: Owston meet 27th November doncaster

I was going to go to this but my wife informed me I am otherwise engaged. Bums. I was quietly looking forward to going and getting horrendously pissed with some like minded individuals. Oh well. Next one after that. The Friday evening "talking bollocks" session is particularly interesting...
by karatestu
Sat Oct 23, 2021 7:34 pm
Forum: Music
Topic: Your last listen
Replies: 8443
Views: 2310673
Great Britain

Re: Your last listen

My wife is playing DJ with her phone to JBL charge 5. We are taking it in turns to pick a song. It's a whole lot of fun but I'm not sure I have enough sherry to last the night :cry: I quite like my 11 year old son's and 7 year old daughter's choices. I am down with the kids. FYI, my last choice was ...
by karatestu
Sat Oct 23, 2021 7:11 pm
Forum: Bake-Offs
Topic: Owston meet 27th November doncaster
Replies: 5
Views: 10577
Great Britain

Re: Owston meet 27th November doncaster

I was going to go to this but my wife informed me I am otherwise engaged. Bums. I was quietly looking forward to going and getting horrendously pissed with some like minded individuals. Oh well. Next one after that.
by karatestu
Sat Oct 23, 2021 2:08 pm
Forum: DIY
Topic: Doc modding Marantz imperial 7
Replies: 1932
Views: 433740
Great Britain

Re: Doc modding Marantz imperial 7

A bit more experimenting done. Yesterday I added some little 3mm ply shapes to make the 2" FR seem to be round. This effectively makes the driver rebated as I have also added more decorators caulk to smooth out the transition. Haven't sanded it down yet but it's not bad. That improved detail, i...
by karatestu
Sat Oct 23, 2021 11:48 am
Forum: DIY
Topic: Doc modding Marantz imperial 7
Replies: 1932
Views: 433740
Great Britain

Re: Doc modding Marantz imperial 7

Further reading on Diyaudio.com confirms that the SBA65 2" FR diver I am using is a good choice for use as a tweeter. Many threads it gets mentioned as one of the best to use . As it has a sub-radiator (i.e a direct-coupled central cap which acts as a dome tweeter) this helps with dispersion of...
by karatestu
Sat Oct 23, 2021 10:29 am
Forum: DIY
Topic: Doc modding Marantz imperial 7
Replies: 1932
Views: 433740
Great Britain

Re: Doc modding Marantz imperial 7

Interesting interview with robin Marshall who designed the legendary Epos ES14 (no low pass on mid bass, 1st order electrical on tweeter). He says that maybe small cones should be used for a tweeter rather than dome :think: And wide overlap between drivers is the best way rather than sharp 4th order...
by karatestu
Sat Oct 23, 2021 9:43 am
Forum: DIY
Topic: Doc modding Marantz imperial 7
Replies: 1932
Views: 433740
Great Britain

Re: Doc modding Marantz imperial 7

To get a feel for full range drivers: if you go to the Audio Talk Owston meet, I will have my Fane 12-250-TC 12” aperiodic speakers on show. It’s nice to experiment, but the frustration can be terrible, if you are not getting anywhere. Sometimes it pays to hear what other people are doing and pick ...
by karatestu
Sat Oct 23, 2021 8:07 am
Forum: DIY
Topic: Doc modding Marantz imperial 7
Replies: 1932
Views: 433740
Great Britain

Re: Doc modding Marantz imperial 7

Looking for the easiest way to achieve the result I want with the fewest components possible. Maybe I should be using a single larger full range driver that can do bass to treble. I know they have their issues like intermodulation distortion from having to move so much for bass whilst at the same ti...