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21
Q & A / Re: No sound out of Sonic II/200s ext speaker port
« Last post by Isaac on February 16, 2024, 10:09:54 am »
The JBL K140 has a top end of about 2000Hz. That's an octave or two too low for what most people want for a guitar sound. It will be a dark and midrangey sound, not bright. Imagine playing guitar through an amp with the treble turned all the way down. So, strictly for guitar use, I'd say that the Sunn Transducers will yield a better guitar sound. 130s - D, K or E - are a different matter. They are loud, clean, and low distortion. Not everyone's cup of tea for guitar, but some love them. I played with a guy who used a Sunn 1200S into two cabinets with two D130s each. What a sound! Loud and clean, and the differences between guitars and pedals were very clear.
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Q & A / Re: No sound out of Sonic II/200s ext speaker port
« Last post by thanksgiving on February 15, 2024, 01:34:12 pm »
Quote from: loudthud on February 15, 2024, 04:14:19 am
K140s are for bass. They are 3 or 4 dB louder than the Sunn transucers. For guitar, K130s are even louder.

The "4 Ohm" jack is an odd-ball part that does the 4 to 8 Ohm switching and it will be hard to find if you need a new one. There should be some sound if you just plug into only the 4 Ohm jack. At least one thread here has pictures of the internal wiring.

Link: https://forum.sunnstillshines.online/index.php?topic=4844.msg18880#msg18880

i understand that they are for bass, but would still be suitable for guitar no? would the sunn transducers sound better with a guitar?

the wiring in my sonic ii looks the same as the photo(minus the feedback wire), i suppose i will have to shoot the tech a message?
https://ibb.co/HYCj79c
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Q & A / Re: No sound out of Sonic II/200s ext speaker port
« Last post by Ryan Phelps on February 15, 2024, 05:53:01 am »
Loudthud is correct. The 4 ohm jack is a Switchcraft 13A and is available from Antique Electronic Supply (AES). I bought a handful years ago for Sunn repair work.
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Q & A / Re: No sound out of Sonic II/200s ext speaker port
« Last post by loudthud on February 15, 2024, 04:14:19 am »
K140s are for bass. They are 3 or 4 dB louder than the Sunn transucers. For guitar, K130s are even louder.

The "4 Ohm" jack is an odd-ball part that does the 4 to 8 Ohm switching and it will be hard to find if you need a new one. There should be some sound if you just plug into only the 4 Ohm jack. At least one thread here has pictures of the internal wiring.

Link: https://forum.sunnstillshines.online/index.php?topic=4844.msg18880#msg18880
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Q & A / No sound out of Sonic II/200s ext speaker port
« Last post by thanksgiving on February 15, 2024, 12:17:17 am »
Hey everyone, just got my first Sunn head and took it to a respected local tech to get a full once over as it was all original, with the 2 prong plug. when plugging into the 4 ohm ext jack I get no sound. It's my understanding that with one cab the amp has a switch between 8 and 4 ohms between the main and ext jacks on the back. wanted to confirm this is true and not my own error before taking it back and making a stink... anything inside to look for or advice would be much appreciated. sunn forever  8-)

ps... while ive got you- how much of a difference/what do you all prefer for guitar? k140 or the sunn transducers in a 200s cab? have the opportunity to buy either but not sure if its worth spending an extra $300 for the jbls.
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General Discussion / Hibish Design builds a Beta Lead clone - thoughts?
« Last post by GeorgeThern on February 14, 2024, 02:17:39 pm »
Has anyone tried the Beta Lead clone built by Hibish Design? I'm curious to know if it captures the original Beta Lead's unique tone and if it's worth investing in. Any feedback or personal experiences would be appreciated!
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General Discussion / Hibish Design builds a Beta Lead clone - thoughts?
« Last post by DanielSof on February 14, 2024, 12:37:08 am »
Has anyone tried the Beta Lead clone built by Hibish Design? How does it compare to the original Sunn Beta Lead in terms of tone and reliability? Are there any unique features or modifications that make this clone stand out? Any insights or personal experiences would be greatly appreciated.
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General Discussion / Unconventional Amplification Techniques.
« Last post by Danielhiesk on February 13, 2024, 03:26:55 am »
Has anyone experimented with unconventional amplification techniques, such as using household objects or alternative power sources, to achieve unique tones? Share your experiences and any tips for unconventional amplification setups.
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Q & A / Re: SR-30C
« Last post by Isaac on January 03, 2024, 09:58:54 am »
Ya got me. I've never heard of it, and don't know anything about it.
Good luck.
30
Q & A / SR-30C
« Last post by Beerhoven on January 02, 2024, 06:23:07 am »
Good afternoon,

I was wondering if somebody could tell me anything about this amp, or suggest other areas for research.

I bought it second-hand as a kid from an ad in the paper (Durham, UK) to learn to play guitar, and then it spent the best part of 25 years in a cupboard when I started using other gear.

I don't have much information about it other than it is apparently an SR-30C and the serial number is (SR30)000086.

I can't find much online, but the closest thing I've found is a Fender Mustang SR-25 or SR-35. Though, it doesn't have the mustang branding though, and clearly says SR-30C with the Sunn logo.

It has been suggested to me that it may have come from the Mexican plant, though it says 'Made in Taiwan' on the back and lists 'Fender Musical Instruments, Brea, California' also.

It is a bit of a mystery to me, and I am trying to get as much information as possible.

Thanks

Images;







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