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In the Forum: Melquiades Amplifier
In the Thread: Planning my DSET

Post Subject: DSET Bass OPT is woundPosted by anthony on: 10/19/2016

The Bass OPT's for my DSET have been wound. We have come back to a 1000R plate loading and into 1R the 6C33C grid clips at 9.36W and 5.8% distortion. The -0.5dB points at full power are 5.9Hz and 5kHz.

A nice result really, and about where I thought the power would end up, although obviously it would be nice to have a little more. 9W before grid clipping should be enough in my room, and even if things are pushed harder the 6C33C/OPT will still push 15W at 10% distortion into 1R.

I also had Lucas test the output into 5R, and we got 17W at grid clipping and about 2.7% distortion.

When using such a low speaker impedance as 1R, the quality and type of connections between the OPT and the transducers really makes a difference...so it looks like I am going to have to hard-wire this channel. Think about the effect of a 0.5R binding post in addition to a 1R speaker load...that is a large percentage of the nominal.

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