Connecting two 303's on 33 mains out

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06-Nov-2019 10:51 AM

koozoop

koozoop

Posts: 15

Hello,

Which parts of the 33 should be modified to allow a couple of 303's to power on from the mains out of the 33? I can always power on the 303's by using an external torpedo switch or sth similar but I would love to keep the option to power on both simultaneously from the 33. I'll use them on a vertical bi-amp configuration.

Thanks!

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06-Nov-2019 11:05 AM

Stefaan

Stefaan

Posts: 628


Hello,

The 2A fuse in the 33 does not allow for enough power for 2x 303's. 

You could consider replacing the fuse with 4A.

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06-Nov-2019 11:16 AM

koozoop

koozoop

Posts: 15

Good morning Stefaan and thank you for your reply. Is it only the fuse or shall I change cabling and on/off switch as well? If it's only a fuse thing then it's easy to replace.
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07-Nov-2019 05:54 PM

koozoop

koozoop

Posts: 15

The pot switch is rated at 250v/2A so I probably have to change the pot too. The one you sell is rated at 4A/250v so it will do the job along with doubling the power cable diameter just to be sure. It is currently out of stock on your web-shop.

When it will be available again?

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21-Nov-2019 04:02 PM

koozoop

koozoop

Posts: 15

Hi. Sorry to ask again but when will the volume pot be in store?
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23-Nov-2019 11:43 AM

PeteUK

PeteUK

Posts: 21

Rather than wait to upgrade the switch, why not use the mains output to switch a relay?

A 10A relay can be fitted in a small external box and switch both 303's (and an FM3 if you want).

This avoids modifying the 33 and faffing about with the 303 cables, keeping everything in its original state.

You can get all the materials to do this from ebay quite cheaply. Probably an hours work?

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23-Nov-2019 01:45 PM

koozoop

koozoop

Posts: 15

Good evening. I thought adding a relay(soft start circuit) in a box after the  33's mains out but I'm going to replace the pot anyway so if I manage get one with a 4A switch (like the one dada sells) it'll do the job. Could always add it as an extra protection though.
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