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#1
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier - Hookup
I have 2 NAD 2200 power amps, set up for bridge mono mode. These
amplifiers are designed to operate in this mode, but are somewhat short on connection instructions. Each amplifier is connected to its own speaker using the 2 speaker terminals indicated on the back of the amp for bridged mono mode. Speaker to amp connections i think should look like this: Left speaker + ----------------NAD Amp #1 bridged + Left speaker - ----------------NAD Amp #1 bridged - Right speaker + ------------NAD Amp #2 bridged + RIght speaker - -------------NAD Amp #2 bridged - Connection to the preamp is less clear. My NAD 1135 preamplifier just has a "normal" and a "high" Pre-Out L and R. I assume i'd use the "normal" L and R ouputs like this: Preamp Out L--------------Y cable-----------------Poweramp #1 input L \-----------------Poweramp #2 input L Preamp Out R-------------Y cable----------------Poweramp #1 input R \----------------Poweramp #2 input R Is this right? Thanks. |
#2
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier -
On Oct 25, 8:15=A0am, mark wrote:
I have 2 NAD 2200 power amps, set up for bridge mono mode. These amplifiers are designed to operate in this mode, but are somewhat short on connection instructions. Each amplifier is connected to its own speaker using the 2 speaker terminals indicated on the back of the amp for bridged mono mode. =A0Speaker to amp connections i think should look like this: Left speaker + ----------------NAD Amp #1 bridged + Left speaker - ----------------NAD Amp #1 bridged - Right speaker + ------------NAD Amp #2 bridged + RIght speaker - -------------NAD Amp #2 bridged - Connection to the preamp is less clear. My NAD 1135 preamplifier just has a "normal" and a "high" =A0Pre-Out =A0L and R. I assume i'd use the "normal" L and R ouputs like this: Preamp Out L--------------Y cable-----------------Poweramp #1 input L =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \-----------------Pow= eramp #2 input L Preamp Out R-------------Y cable----------------Poweramp #1 input R =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\----------------Power= amp #2 input R Is this right? Thanks. Upon further thinking....what i said above is wrong. Instead i'm thinking what i should do is use the Y cable to split the "L" preamp output signal across both the "L" and "R" Poweramp inputs. Like this: Preamp Out L---------Y cable-----------Poweramp #1 L and R---------- Left speaker Preamp Out R--------Y cable-----------Poweramp #2 Land R----------- Right speaker Right? |
#3
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier - Hookup
"mark" wrote in message
... I have 2 NAD 2200 power amps, set up for bridge mono mode. These amplifiers are designed to operate in this mode, but are somewhat short on connection instructions. Each amplifier is connected to its own speaker using the 2 speaker terminals indicated on the back of the amp for bridged mono mode. Speaker to amp connections i think should look like this: Left speaker + ----------------NAD Amp #1 bridged + Left speaker - ----------------NAD Amp #1 bridged - Right speaker + ------------NAD Amp #2 bridged + RIght speaker - -------------NAD Amp #2 bridged - **This is incorrect. I suggest you refer to your instruction manual. When in bridge mode, the outputs are taken from the +ve terminals only. The -ve terminals are not connected. Connection to the preamp is less clear. My NAD 1135 preamplifier just has a "normal" and a "high" Pre-Out L and R. I assume i'd use the "normal" L and R ouputs like this: Preamp Out L--------------Y cable-----------------Poweramp #1 input L \-----------------Poweramp #2 input L Preamp Out R-------------Y cable----------------Poweramp #1 input R \----------------Poweramp #2 input R Is this right? Thanks. **You should use the input terminal labelled 'mono'. One connection per channel. -- Trevor Wilson www.rageaudio.com.au |
#4
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier -
On Oct 26, 7:52=A0pm, "Trevor Wilson"
wrote: "mark" wrote in message ... I have 2 NAD 2200 power amps, set up for bridge mono mode. These amplifiers are designed to operate in this mode, but are somewhat short on connection instructions. Each amplifier is connected to its own speaker using the 2 speaker terminals indicated on the back of the amp for bridged mono mode. =A0Speaker to amp connections i think should look like this: Left speaker + ----------------NAD Amp #1 bridged + Left speaker - ----------------NAD Amp #1 bridged - Right speaker + ------------NAD Amp #2 bridged + RIght speaker - -------------NAD Amp #2 bridged - **This is incorrect. I suggest you refer to your instruction manual. When= in bridge mode, the outputs are taken from the +ve terminals only. The -ve terminals are not connected. Connection to the preamp is less clear. My NAD 1135 preamplifier just has a "normal" and a "high" =A0Pre-Out =A0L and R. I assume i'd use the "normal" L and R ouputs like this: Preamp Out L--------------Y cable-----------------Poweramp #1 input L =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\-----------------Po= weramp #2 input L Preamp Out R-------------Y cable----------------Poweramp #1 input R =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \----------------Powera= mp #2 input R Is this right? Thanks. **You should use the input terminal labelled 'mono'. One connection per channel. -- Trevor Wilsonwww.rageaudio.com.au there are 4 inputs on the back of the NAD 2200 poweramplfier. "LAB" and "NORMAL" L and R. Neither says mono. There is a switch for bridge mono which of course i have selected. I thought i'd need to feed both the L and the R sides of the poweramp the same output from the preamp. I think what you're suggesting is feeding a single poweramp input should suffice. |
#5
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier -
there are 4 inputs on the back of the NAD 2200 poweramplfier. "LAB"
and "NORMAL" L and R. Neither says mono. There is a switch for bridge mono which of course i have selected. I thought i'd need to feed both the L and the R sides of the poweramp the same output from the preamp. I think what you're suggesting is feeding a single poweramp input should suffice. If I recall correctly from privious NAD amps, the 'Lab' input was a full freq range input, while the 'Normal' input had out of audio band frequency filtering applied. Normally if a power amp offers a bridged mode then you connect the speaker to the Left + and Right + terminals and connect the preamp to just one of the channel inputs. The amp inverts this signal and feeds it to the other amp input internally. I'm surprised which one to connect to isn't marked but a quick bit of trial and error should work it out if you can't find the user instructions. Obviously power down the amp when swapping the input connection!! |
#6
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier -
there are 4 inputs on the back of the NAD 2200 poweramplfier. "LAB"
and "NORMAL" L and R. Neither says mono. There is a switch for bridge mono which of course i have selected. I thought i'd need to feed both the L and the R sides of the poweramp the same output from the preamp. I think what you're suggesting is feeding a single poweramp input should suffice. Just found the 2200 service manual online and from looking at the schematic you connect the pre-amp to the left input only. 'Normal' input is a freq limited version of 'Lab' input as previously guessed. |
#7
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier -
On Oct 30, 7:59=A0am, "CJ" wrote:
there are 4 inputs on the back of the NAD 2200 poweramplfier. "LAB" and "NORMAL" L and R. Neither says mono. There is a switch for bridge mono which of course i have selected. I thought i'd need to feed both the L and the R sides of the poweramp the same output from the preamp. I think what you're suggesting is feeding a single poweramp input should suffice. Just found the 2200 service manual online and from looking at the schemat= ic you connect the pre-amp to the left input only. =A0'Normal' input is a fr= eq limited version of 'Lab' input as previously guessed. got it, thank you...where did you find the service manual? Thanks |
#8
Posted to rec.audio.high-end
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NAD 2200 Power Amplifier Bridge Mono NAD 1135 Pre Amplifier -
"mark" wrote in message
... On Oct 30, 7:59 am, "CJ" wrote: there are 4 inputs on the back of the NAD 2200 poweramplfier. "LAB" and "NORMAL" L and R. Neither says mono. There is a switch for bridge mono which of course i have selected. I thought i'd need to feed both the L and the R sides of the poweramp the same output from the preamp. I think what you're suggesting is feeding a single poweramp input should suffice. Just found the 2200 service manual online and from looking at the schematic you connect the pre-amp to the left input only. 'Normal' input is a freq limited version of 'Lab' input as previously guessed. got it, thank you...where did you find the service manual? Thanks I Googled NAD 2200 manual and found the following link pretty quickly.. http://www.audio-circuit.dk/Schemati...0PE-pwr-sm.pdf |
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