Bridge Nad C370 with C270

[waggy]

Hi,

I have a C370 and a C270 that I have run in Bridge mode for years. I have had to leave the amps in storage for a while and now can not remember how it all connects up!! Can anyone help??

I have conected the speakers to the center posts and both boxes have the switches set to bridge. What I am not sure of is the connection from the C370 to the C270 and where the link goes on the C370 (Pre 1 - Main in - Pre2 Right or left channel)

Hope you can help as I have been without music for a while!!

 

[goomer]

Here are links to the manuals which should see you right.

http://www.nad.de/manuals/C370.pdf

http://www.nad.de/manuals/C270.pdf

 

[waggy]

Been through them but they both read as though they are the slave and no mention of where to take the interconect from and what to do with the "link" on the pre out post's

Thanks for the quick reply though

 

[goomer]

My understanding is that you remove the pre out/main in links on the back of the C370 and flick the Bridge Mode switch to "On", in order to use the C370 like a stereo pre amp and single monoblock power amp in the same case (with the C270 being the other monoblock, again Bridge Mode switch to "On"), and using a single RCA phono cable from the left "pre out 1" socket into the left "main in" on the back of the C370. The right "pre out 1" on the C370 is then connected to the left input on the C270 using another single RCA phono cable. Speaker cables are then connected as per the manuals linked to, with the C370 connected to left speaker and C270 connected to right speaker. It has been a while since I used the same set up myself but I think that's correct, though you may want to double check it. The speaker cables connect as follows (lifted from the manual):

"Set the BRIDGE MODE switch to the 'Bridge' positionand connect the speaker to the terminals marked 'L +' and 'R+'

ensuring that the 'L+' is connected to the '+' terminal on your

loudspeaker and the 'R+' is connected to the loudspeaker's '-'

terminal."

Hope that makes sense.

 

[Passlove]

"Set the BRIDGE MODE switch to the 'Bridge' positionand connect the speaker to the terminals marked 'L +' and 'R+'ensuring that the 'L+' is connected to the '+' terminal on your

loudspeaker and the 'R+' is connected to the loudspeaker's '-'

terminal."

Hope that makes sense.

Hi

I am not sure if your speakers have bi-wire terminal?

My speakers are bi-wire. I also have Nad370 and 270. C370 and C270 , they both are gorgeous speakers in term of ValueFMoney, Do not let their finish fool you. They look cheap but the combo can give you sound quality of 1,5k -2K amp.

I can 100% confirm that Mono bridge mode is far worser than bi-amp mode. It made more noise and produced less 3d soundstage than bi-amp mode.

As far as I remember, connecttion suggestion:

C370 has 2 pre-out

C270 to drive LF speakers

C370 drives HF speakers

In this connection , cross talk is much reduced. I will check the conenction and let you know in detail if you want.

However, if your speakers are NOT bi-wire, I am afraid you do not have many options

 

[vacdac]

The OP wants to bridge as the amps support this & he has done so before & simply wanted to confirm the correct wiring , which sounds right to me BTW.....using the positive terminals of each channel for bridged operation.

No mention was made re biwirable speakers or wishing to bi-amp. :nup: :roll:

Your post reads like gibberish & your stated benefits of biamping in your set up are likely figments of your imagination......reduced crosstalk, my arse!!

Hi I am not sure if your speakers have bi-wire terminal?

My speakers are bi-wire. I also have Nad370 and 270. C370 and C270 , they both are gorgeous speakers in term of ValueFMoney, Do not let their finish fool you. They look cheap but the combo can give you sound quality of 1,5k -2K amp.

I can 100% confirm that Mono bridge mode is far worser than bi-amp mode. It made more noise and produced less 3d soundstage than bi-amp mode.

As far as I remember, connecttion suggestion:

C370 has 2 pre-out

C270 to drive LF speakers

C370 drives HF speakers

In this connection , cross talk is much reduced. I will check the conenction and let you know in detail if you want.

However, if your speakers are NOT bi-wire, I am afraid you do not have many options

 

[stewartwen]

"I can 100% confirm that Mono bridge mode is far worser than bi-amp mode. It made more noise and produced less 3d soundstage than bi-amp mode".

ABSOLUTE BOLLOCKS!

Chris I agree with you re the claimed crosstalk findings.

I often wonder why I bother to come on this site at all sometimes...............I am going to get my tea.....should have calmed down a little by then.

S

 

[Colin^]

I found in bridged mode, my Nads sounded better.

 

[Frizzy brizzy]

I did the same thing with some good rotel integrated amps , IMHO the best way for music making is using one amp for tweeters one for bass, don't know about crosstalk , get that a lot round here, but I gather having this way means the amps only see one type of driver so impedance and all that stuff are similar.

Use the 270 for tweeters and 370 bass, not difficult to set up, providing you have enough cabling, I think the nad website used to illustrate both options, if not its what google do best.

 

[Passlove]

. . . your stated benefits of biamping in your set up are likely figments of your imagination......reduced crosstalk, my arse!!

"I can 100% confirm that Mono bridge mode is far worser than bi-amp mode. It made more noise and produced less 3d soundstage than bi-amp mode". ABSOLUTE BOLLOCKS!

Chris I agree with you re the claimed crosstalk findings.

I often wonder why I bother to come on this site at all sometimes...............I am going to get my tea.....should have calmed down a little by then.

S

I did set up via Mono bridge and then bi-amp ( Nad C370 and C270 are still in stereo mode)

My system is NadC370, Nad C270, Mission 753 (bi-wireable speakers)

What I found is Mono bridge mode is worser than bi-amp mode.

Hi Chris and Stewart, if both of you have Nad370+Nad C270 and you love mono bridge mode, then go for it. :^

If you don't have, get them and then post your thread after checking between Mono bridge mode and stereo one:^

 

[Passlove]

I found in bridged mode, my Nads sounded better.

Hi Colin. I am not sure if your speakers can be bi-wire?

1/ if not , Mono bridge may be the best option

2/ if yes, did you try to hook up via bi-amp?

The link below tell me how to hook up:

http://www.google.co.uk/imgres?imgurl=http://i322.photobucket.com/albums/nn416/VintageAudi0/Stereo%2520Configurations/6_Horizontal_Bi-Amp.jpg&imgrefurl=http://www.audiokarma.org/forums/showthread.php?t%3D458761&h=825&w=814&sz=77&tbnid=JPyqGmzqqyhIJM:&tbnh=91&tbnw=90&prev=/search%3Fq%3Dbi%2Bamp%2Bspeakers%2Bdiagram%26tbm%3Disch%26tbo%3Du&zoom=1&q=bi+amp+speakers+diagram&usg=__rJTWAMw8624PCSH4zIC_4dmoGZE=&docid=o3GKnBhFcXFB2M&sa=X&ei=FTwmUqr8BsSKhQe2-4DoBA&ved=0CC8Q9QEwAA&dur=2743

I did the same thing with some good rotel integrated amps , IMHO the best way for music making is using one amp for tweeters one for bass, don't know about crosstalk , get that a lot round here, but I gather having this way means the amps only see one type of driver so impedance and all that stuff are similar.

Hi Laurie

I am glad to know, there is one more person like you who experience the same benefit of bi-amp:^

I am completely wrong with "Crosstalk" reduce. It only work with vertical bi-amp set up