C Audio SRX3701 amp on a genny |
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4D
Old Croc Joined: 13 November 2008 Location: Winchester Status: Offline Points: 4257 |
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Well then to answer the OP.. Is it safe to run a srx3701 (a glorified SR707) off a 3k petrol generator No it is not safe as there is a reasonable risk of a voltage spike taking out the power input stage.
In my youth, I have been there, done that and would not do it again..
Edited by 4D - 27 October 2021 at 1:46pm |
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DMZ. "The bass was intense. Girls were literally running up to stand next to the subs"
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Sonic the hedge
Registered User Joined: 12 May 2020 Status: Offline Points: 161 |
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Interesting, because Esc4pe had no problems with a proline, which is known to have a moody inrush circuit - as indeed was the SR 707 back in the day, there is a recommended mod for this. I guess the takeaway there is be careful using big heavy amps with soft start, on small generators, but ironically budget amps will probably fare better here, due to undersized PSU. A good clue to identify amps with undersized PSU would be if the 4r rating is significantly less than double the 8r rating. The exception here being Crest, they are just very well designed and overbuilt so quite difficult to blow up.
Edited by Sonic the hedge - 27 October 2021 at 7:27pm |
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zigzagwanderer
Registered User Joined: 01 February 2021 Location: sw uk Status: Offline Points: 48 |
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any chance you could elaborate further on this mod please, and is it also applicable to the SRX3701 ? |
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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"The exception here being Crest, they are just very well designed and overbuilt so quite difficult to blow up." Yup. I've seen 8001's survive a 380v messup by an electrician, ie 380v supplied instead of expected 220v. The mains breaker switch clicked off and that was it. No internal damage. Meter your mains, yes. And as an aside, a couple of old Orange valve amps also survived said cockup without any problem. Old school over-engineering!
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Earplugs Are For Wimps!
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Sonic the hedge
Registered User Joined: 12 May 2020 Status: Offline Points: 161 |
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Don't know about SRX3701, the SR707 I only know about from way back, IIRC there was a recall by C-Audio. There is some info in this thread: Otherwise suggest contacting one of the amp guys on the forum e.g. simonp1100, service dept Steve, kedwardsleisure
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KDW32
Young Croc Joined: 09 April 2010 Location: Green Hell Status: Offline Points: 525 |
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This threads getting over complicated
We used to run with no issues 4 X ohm TRS 218 and 2 TRS 212 being powered by chevin a4000 on bass, c audio srx 3701 on mid top, bss fds 360, pair of 1210 and a couple iof lights for several days at a time for a couple of years off a 3.2 KVA honda petrol. Sounded great. Never an issue. Some people on here might remember it.
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