REL Stampede power transformer question

Posted by SQLGuy (A) on November 22, 2007 at 10:49:03

Hi All,

I bought a REL Stampede sub while living in Belgium. I brought it back with me to the US because I really liked it, even though it is 240V only.

Setting it up here, I used a 120-to-240 step-up transformer. The back of the Stampede says 220~240V 50/60Hz. My step-up transformer provides 235V 60Hz as measured with a Fluke True RMS meter. I figured I'd be OK.

The unit ran fine for about two days like this, then died. It didn't blow the input fuse, nor noticably smoke or anything, but it also didn't turn on or respond in any way.

I sent the amp in to Sumiko (who owns REL and is their US distributor). It took them about six weeks to get a whole new replacement amp from Wales. The thing is, I am hesistant about hooking it back up, because I am worried that, despite having labelled the unit 50/60Hz they didn't really test it at 60Hz, and that's what led to the previous failure. Any thoughts on this?

Ideally I would like to get a 120V or 120/240V transformer for it. The stock transformer has 2x 15V and 2x 35V secondaries. I would guess, based on the 2A input fuse, and the 150W rating of the amp, that the transformer would be around 240VA, but it seems awefully small for that (around 92mm diameter by 40mm thick toroidal). Do any of you have any ideas what the actual supply capacities are for this tranformer?

Alternatively, I suppose I could get a Variac and run it off that (with the input voltage set to give 35VAC at the secondary). Not as elegant as a new power transformer, though.

Thanks in advance for any help or ideas.

Paul

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Topic - REL Stampede power transformer question - SQLGuy 10:49:03 11/22/07 (1)

Isn't Sumiko in the Bay area? - Duilawyer 13:57:05 12/26/07 (0)

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