Help with NAD please...................

[admin_exported]

I have a C319 integrated amp and a C270 powr amp.

I would like to Biamp them. Would one amp provide high and the other low frequencies or would one amp power one speaker as in bridged mode?

Does anyone have a diagram for connecting them and also how the speakers should/could be connected?

 

[John Duncan]

Does the c319 have preouts? If so, connect integrated to tweeter, preouts from c319 to c270, connect c270 to woofers. Simples!

 

[jaxwired]

What John said, but you also have to level match the 270 to the 319 using the input level dial on your 270.

 

[Anonymous]

The manual says i need a twin RCA to a single RCA.

Can anyone recommend a supplier as i can only find ones for £1.28 which seems a bit cheap and also i dont think they will help with sound quality!

 

[John Duncan]

Don't think so. let me see if I can find a picture of the c270...

 

[John Duncan]

Hmm, not quite what I was expecting at the back:

Let me see if I can find the manual.

 

[John Duncan]

right, sorted.

Not sure I agree with jaxwired here - I can see how you might want to do that in a home theatre system, but not in bi-amping - would be difficult to get the balance right between the HF and LF, and the two amps should be gain matched anyway. If you find the sound a bit unalanced, then try as jax says and see if using the variable input gives you a better sound.

So:

1) Make sure all the power is off
2) Make sure the power amp bridged mode is set to 'off' (crucial)
3) Make sure the 'input select' switch on the power amp is set to 'fixed'
4) Take a pair of rca cables (not 2 RCA - to 1 RCA) from the preouts of the integrated to the "fixed in" sockets of the c270.
5) attach speaker cable from 'speaker a' sockets of the integrated to the HF inputs on your speakers.
6) attach speaker cable from 'speaker a' sockets of the power amp to the LF inputs on your speakers.

turn on and off you go.

 

[Anonymous]

isnt this way just using the power amp to power the speakers?

 

[John Duncan]

No, the integrated should also continue to provide output to the speakers.

 

[John Duncan]

Ooo hang on, this may be a "JD talking sh-te" moment (happens all the time. I'd forgotten that NADs have that weird pre-out/main in/jumpers palaver. Let me investigate a bit further...

 

[Anonymous]

I got this far as well and then thought i would consult the forum........... The manual says i need the twin RCA to single RCA to do this...........................

 

[John Duncan]

Thus splitting the signal so you can feed from the preout to the power amp whilst still feeding its own power amp section, yeah. Damn those canadians...

Am still looking.

 

[John Duncan]

And you found something like this I take it

 

[John Duncan]

OK, I give in - NAD's arrangement has stumped me, and you probably do need something like this



from Nexxia (click to jump)

 

[Anonymous]

I like the look of these better than the cheapy looking cable. do you think they will sound any different?

Now that this bit is sorted for about a tenner...............

How should i connect my speakers? i have a pair of KEF Q35 with Silver anniversay cable. I have enough to biwire as well

 

[Anonymous]

Have managed to sort out the speaker cabling.

Just for info i have just started to re use my hifi now that my children are growing up i have a bit more time to listen to music.............

NADC319 integrated amp and NADC270 power amp. Arcam alpha 8SE CD Player and KEF Q35 speakers.

The interconnects from CD to C319 are Nordost Black Knight. I am not sure what the interconnects are between the C319 and C270. (they are Nordost as well i think , they are flat flexible copper?)

Speaker cable is QED silver anniversary.

I Have always felt there is a slight lack of something in the bass and clarity department. ( i have also noticed that some CDs are better recorded than others?)

Can anyone recommend different interconnects for between cd and amp and also amp to amp?