NAP 300 to Rel sub

Hi-Fi Corner
1

Hi everybody. I have just taken possession of a 300 DR, to upgrade from 250 DR. Just to double-check before plugging it in:
The 300 is NOT a bridged design (as 500), so there is no difference between 250 and 300 in connecting a Rel sub via high-level connection: the black to -, the red and yellow to +.
Thank you in advance to whoever confirms first :slight_smile:

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2

You’ll be fine but with Naim it’s best to connect from the speakers and not the amp.

3

Thank you Richard, when I mentioned + and -, I was referring to the speakers’ terminals :slight_smile:

4

Yup you’ll be fine. I have a balanced
bridged amp and I have to ground my REL on a separate ground like the chassis of the amp.

1 Like
5

I went from a 250DR to a 300DR some years ago and connect my REL subs to the speakers terminals. There is no difference between the two amps with regards to REL connections.

6

Is it different the connection to REL sub with a bridged amp (like 500 DR)? How is that different?

7

If it’s a true Balanced Bridge then the speaker outputs should NOT be used to ground anything except speakers… Most amps have a passive or floating ground, not so with Balanced Bridge a REL would need a separate ground; chassis , phono ground, anything except the speaker terminal

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