Search found 16 matches

by jldelta
Wed 17 Oct 2018, 10:01
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

Over one year later. ... here's what I did : 1. I left the OA-14 on either side of my fireplace as per the photo in my post dated 22 August 2017; 2. I disconnected my subwoofer; 3. I then placed the OA-12 in the corners of the room on either side of the OA-14 (the OA-12 are right in the corners beh...
by jldelta
Fri 12 Jan 2018, 17:30
Forum: Sonab
Topic: OA 116 reno + tweeters
Replies: 12
Views: 2484

Re: OA 116 reno + tweeters

Interesting project, Ali (& great photos from JanA) ! My Sonab progression over the last 18 months or so has been OD-11>OA-12>OA-14, all of which I still own. I'd like some OA-116, but have yet to find a good pair within a day's return drive from Amsterdam (the main source seems to be Denmark and Sw...
by jldelta
Wed 20 Sep 2017, 15:24
Forum: Sonab
Topic: Sonab Cambridge P50 - obalanserad utsignal
Replies: 3
Views: 592

Re: Sonab Cambridge P50 - obalanserad utsignal

There has been a recent thread at PFM about a P60, which followed the P50 (without any Sonab branding) : http://www.pinkfishmedia.net/forum/showthread.php?t=205072). This page has quite a lot of information about the P series amps, including circuit diagrams : http://www.angelfire.com/sd/paulkemble/...
by jldelta
Mon 11 Sep 2017, 13:58
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

Thanks - I missed that helpful thread.
by jldelta
Thu 07 Sep 2017, 06:55
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

Thank-you, STDI!

Do you by any chance know with what material the SC165 driver has been doped, please - the Visaton liquid, or even the very exotic C37 ?
by jldelta
Wed 06 Sep 2017, 16:13
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

jldelta wrote:Good evening.

Is this the so-called Y-configuration http://privat.bahnhof.se/wb472183/Bilde ... ierung.JPG and is there a general consensus that it is indeed an improvement (assuming new OA-T22-II tweeters) ?
"Is there anybody out there !?"
by jldelta
Sat 26 Aug 2017, 19:58
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

Good evening. Is this the so-called Y-configuration http://privat.bahnhof.se/wb472183/Bilder/teknik/Diskantplatzierung.JPG and is there a general consensus that it is indeed an improvement (assuming new OA-T22-II tweeters) ... OR, might it be better to configure "OA-12 style" with just two new tweet...
by jldelta
Wed 23 Aug 2017, 08:38
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

Did a lot of listening last night & my OA-12 are better - at least in mid-range and treble performance - than the OA-14. I attribute this to the state of the drivers. As I examine the OA-14 cabinets, I wonder if a restoration based on the principles that were valid in the 1970s is truly appropriate,...
by jldelta
Tue 22 Aug 2017, 10:03
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

The OA-14 are now installed and singing... with the help of a sub (sub #2 requiring amplifier repair before introduction) : IMG_3015.JPG In some ways better than the OA-12, but in others slightly less so.... and my guess is that this is because I am dealing with two very old ladies (the loudspeakers...
by jldelta
Sun 13 Aug 2017, 14:49
Forum: Sonab
Topic: "Upgrading" OA-14 towards OA-116 !?
Replies: 24
Views: 3490

Re: "Upgrading" OA-14 towards OA-116 !?

I also think the big fire place between the speakers will have a (negative?) influence on the sound. It does indeed and conventional speakers need to be pulled out so that the imaging is not affected. I will experiment with the OA-14... I tried the OA-12 quite close to the fireplace with the Left a...