Recent Posts

61

Q & A / Re: New member, questions/ID on a Sunn 200S

« Last post by Soundmasterg on July 31, 2023, 10:06:30 pm »

Taps are there for 4 ohm, 8 ohm, and 16 ohm. It just so happens that on your amp the 16 and 8 are on the back chassis. Sunn used a switching jack on one of the jacks but it is possible to wire up whichever impedance you want. On an old 200S I used to have, I went with 3 normal jacks, drilled one more hole, and put all three impedances on the back.

Greg

62

Q & A / 115S/M/V cab speakers - Cerwin Vega model

« Last post by fazeka on July 31, 2023, 03:30:02 pm »

Hi all,

Have a friend who says he has a Sunn 115 in storage he's willing to give to me.

This is the one with the non-removable back panel and the silver grill cloth (Fender-like, turned 90 degrees), so I am thinking '72 to mid-(late-?) '70s (?). i.e., a Hartzell era cab.

Unsure if it's an S(Sunn), M (Magna) or V (Cerwin-Vega) version. Unfortunately, there's no driver in the cab. =(

Although I could pop just about any 15 in there, I was thinking that the original Cerwin-Vega would be cool, being the so-called best of the three versions.

However, I am finding next to no info on what Cerwin Vega could have come in the V version of that cab specifically.

Of the few references, I see one saying it would have been a M154. A few others saying a 153EV. One even saying a 158... 

Anyone know for certain?

At this point, even a period-era Cerwin Vega catalog could give me the stats/specs on whatever was available during that era.

Thanks,
Chris

63

Q & A / Re: New member, questions/ID on a Sunn 200S

« Last post by fazeka on July 30, 2023, 11:49:44 am »

Hi Greg,

Thanks for your reply and info on this amp.

As I've been researching other 200S's, one thing I'm confused on is that this one is the only one I've seen so far that has 16-ohm and 8-ohm outputs. All the other 200S's I've been looking at have 8-ohm and 4-ohm outputs.

Any idea why?

64

Q & A / Re: New member, questions/ID on a Sunn 200S

« Last post by Soundmasterg on July 28, 2023, 08:56:01 pm »

The rectifier should be a GZ34 tube if stock, but for bass the solid state rectifier plug in is likely better.

The black paint is not stock but it doesn't hurt anything. You would probably hurt the chassis more to try to take it off unless it came right off with acetone or something like that. Any lettering is likely painted over already.

The transformer leaning slightly just means it was probably shipped somewhere and people weren't careful. As long as all the wiring is attached and nothing is cut or frayed then it is fine.

The grille cloth indicates that this is an early 200S, probably from around 1967-1968. I used to have one of these early ones and they are a little less power than the later ones, but sound better IMHO. It probably has Dynaco tranformers rather than the later Schumacher or Western transformers.

Nice amp!

Greg

65

Classified / Re: WTB/ISO: Sonic I-40 (1x15) cab

« Last post by Soundmasterg on July 28, 2023, 08:50:41 pm »

The nicer the better but I'm flexible as to condition. With or without speaker. Thanks.

If you can't find any Sonic I-40 cabs, I have a custom 1x15 that I built. When upright it is the same width as the 200S head and when on it's side it is the same width as a 2000S cabinet. It is as deep front to back as a 2000S cabinet, and the port is at the bottom and is half the height of a 200S or 2000S cabinet. I was friends with Conrad Sundholm and we measured it on his LMS system and it had around the same response as his 200S cabinet. Slightly different because it has a JBL E140 in it but close. I later added a couple 6 inch tweeters to it also. I was going to put them on a switch but didn't get around to that yet. I can send pics and what not if you are interested. I am in the Portland, OR area, and it, like any cabinet would be heavy to ship. It is in perfect condition.

66

Q & A / New member, questions/ID on a Sunn 200S

« Last post by fazeka on July 28, 2023, 08:09:18 pm »

Hi there SUNN lovers.

New SUNN lover here. Have an opportunity to purchase a 200S.

I'm originally a Fender and Ampeg guy (forgive me) and have no idea on authenticating SUNN amps. If it helps, my father bought a new Sceptre in 1972. I remember that amp until he sold it in the early 1980s... lol

Anyway, looking for some advice/guidance on this 200S. I'm seeking something as original as possible.

Here's a few pics. Not the greatest but hoping with these that those who are in the know will tell me if it's all there or if there's anything non-original.





For example, I didn't know that the chassis rears had black paint. Is this original?

Also, is that some kind of solid state rectifier plug in near the power transformer? Shouldn't it normally be a GZ-34?



Also, I see the (output?) transformer is slightly leaning to one side. Is that indicative of the chassis bending/cracking where it mounts? I know these have hefty transformers.



Also, what year(s) does this look like?

67

Classified / WTB/ISO: Sonic I-40 or 115S/M/V cab

« Last post by fazeka on July 28, 2023, 07:38:37 pm »

The nicer the better but I'm flexible as to condition. With or without speaker. Thanks.

68

General Discussion / Unveiling the Secrets of the Mutant Sunn Sentura II? Can I find here attractive

« Last post by LolitkaGox on July 21, 2023, 11:25:46 am »

Has anyone ever encountered a Sunn Sentura II with bizarre and unexplainable features, such as unique circuit modifications or unusual components? If so, what were these modifications and how did they affect the tone and overall performance of the amplifier?

69

Q & A / Re: Conrad Sundholm RIP

« Last post by Soundmasterg on July 15, 2023, 11:40:23 pm »

For those of you in the Portland, Oregon area, there will be a celebration of life for Conrad. Here are the details.

Greg

https://www.dignitymemorial.com/obituaries/portland-or/conrad-sundholm-11370709?fbclid=IwAR0VsRXEd5xhe3JFKUAZkm3bJx6hMAaXbgqvXfJQ6XuOgLlUM0C2q-1KJjg

70

Q & A / Conrad Sundholm RIP

« Last post by Soundmasterg on July 12, 2023, 11:37:24 pm »

For those who may not have heard, Conrad Sundholm, co-founder of Sunn passed away Monday after a year long illness. He was able to spend the last month or so of his life spending time with family so even though the illness and treatments were hard on him physically, he had support around in his last days. I know that he knew how much of an influence he was for all of us who love the classic Sunn products, and he loved that he had done that and was able to make something that people enjoyed. Godspeed Conrad!

Greg