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NAD C298 Stereo Amplifier Review
- Thread starter amirm
- Start date
nothingman
Senior Member
Sure you could. It won’t leave you with important sub integration tools like delay, but it would get the signal there.
The Eversolo looks like a beautiful unit and screen, but is there something in the features to speak to using it rather than a WiiM Ultra which will give you better sub control tools and other features like PEQ / room correction, and which bench tests very, very well for half the cost?
@nothingman
In fact I think you are right, the Wiim Ultra would also be fine for me (among other things it also has a remote control useful for basic functions) and above all any type of input and output.
It is the dealer who pushes me to change the wiim with Eversolo...
I think I should not pay much attention to him and keep the Wiim for a long time!
Thank you very much for the help.
In fact I think you are right, the Wiim Ultra would also be fine for me (among other things it also has a remote control useful for basic functions) and above all any type of input and output.
It is the dealer who pushes me to change the wiim with Eversolo...
I think I should not pay much attention to him and keep the Wiim for a long time!
Thank you very much for the help.
I've used the Wiim Ultra with the NAD C298 for ~3 weeks now (I made a post in the Ultra review thread), and the combination is wonderful, so far.
Don't worry about using an unbalanced/RCA connection from the Ultra to the C298. Set both to 2V sensitivity, and you should get plenty of volume range on the controls. If you need more, you can change the 'pre-gain' of any input for the Wiim, up to +-10 dB. I goosed the HDMI path I use by +3 dB. Loss of 'headroom' via unbalanced inputs is really not an issue.
The subwoofer integration of the Wiim is superb. I use a Y-splitter from the Wiim sub-out to my 2 subs. The Ultra and C298 are a solid and simple foundation for killer 2.2 systems for bass-heads.
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nothingman
Senior Member
I've used the Wiim Ultra with the NAD C298 for ~3 weeks now, and the combination is wonderful, so far.
Don't worry about using an unbalanced/RCA connection from the Ultra to the C298. Set both to 2V sensitivity, and you should get plenty of volume range on the controls. If you need more, you can change the 'pre-gain' of any input for the Wiim, up to +-10 dB. I goosed the HDMI path I use by +3 dB. Less of 'headroom' via unbalanced inputs is really not an issue.
The subwoofer integration of the Wiim is superb. I use a Y-splitter from the Wiim sub-out to my 2 subs. The Ultra and C298 are a solid and simple foundation for killer 2.2 systems for bass-heads.
Nice setup!
Gotta flag 2.2 and the Ultra. Only one sub output means only one set of delays and PEQ.
Depending on your financial and mental willpower, adding a miniDSP 2x4 between the Ultra sub out and the subs would give you separate delay and PEQ and it stands to reason the whole system would benefit.
@MoreWatts
@nothingman
Thank you very much.
I will definitely do it this way, the Nad has plenty of power, I think the 298 mounts Purifi finals, right?
Everything else with the excellent Wiim ultra.
See you soon and thanks again for the help.
@nothingman
Thank you very much.
I will definitely do it this way, the Nad has plenty of power, I think the 298 mounts Purifi finals, right?
Everything else with the excellent Wiim ultra.
See you soon and thanks again for the help.
Another question.
I am getting a Rel T7X subwoofer, on this subwoofer the manufacturer recommends connecting it with a high level input.
They told me not to connect subwoofers to the amplified output of the Nad speakers, do you know why?
What other solution do I have to connect an active subwoofer to the Nad 298?
Thank you very much.
I am getting a Rel T7X subwoofer, on this subwoofer the manufacturer recommends connecting it with a high level input.
They told me not to connect subwoofers to the amplified output of the Nad speakers, do you know why?
What other solution do I have to connect an active subwoofer to the Nad 298?
Thank you very much.
nothingman
Senior Member
I doubt it’s NAD-specific. They have instructions about Class D and (not) grounding here.
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Much is made of REL’s High Level Input, and justifiably so. No more iconoclastic connection scheme exists in the entirety of High End audio.
rel.net
The way REL presents themselves is a major turnoff, personally.
Yeah, right, all those major tonal shadings of 80hz and below. You guys are true geniuses.
Connect via high-level or the line-out from the C298. I doubt it makes much difference but you can try either.
@nothingman
Sorry, the translator was not correct...
I wanted to say, that Nad (dealer) advises against connecting subwoofers to the speaker output of the C298, he says it could ruin the power amp?
Bearing in mind that via RCA I don't think it changes much...in any case, does the 298 have a pre-out output for subwoofers?
Thank you very much.
Sorry, the translator was not correct...
I wanted to say, that Nad (dealer) advises against connecting subwoofers to the speaker output of the C298, he says it could ruin the power amp?
Bearing in mind that via RCA I don't think it changes much...in any case, does the 298 have a pre-out output for subwoofers?
Thank you very much.
nothingman
Senior Member
That’s up to you. Sounds like your dealer is biased against high-level outputs, because they obviously don’t ruin amplifiers. REL, the manufacturer, really really wants you to use high-level.
Does the C298 have line-out? Please do the bare minimum of research. There are pictures of the C298 rear panel everywhere and you can easily see that it does.
If the amp has a bridged/floating output (one that is not ground-referenced), and your active subwoofer inputs are ground-referenced, you are shorting the amp output to ground if you connect the sub inputs to the speaker outputs. That could definitely cause the magic smoke to escape.
nothingman
Senior Member
I figure that’s covered in their Class D instructions in my previous link, but good advice all the same.
I don’t get not using line level for sub input, but then again I don’t get using REL.
I don't get it either. I use my REL line level input.
I doubt that the protective circuitry in the NAD amp will allow it to self-destruct. NAD typically provides ample overload/overheat protection.
Ok yes I saw the photos of the 298 they show two RCA outputs, I assume they are variable, so I can connect active subwoofer.
I also saw the link, but I got a bit confused with the explanation of living in France, Northern Italy, Germany and moving to England... -
I don't understand the mass issue so I should only connect two rows to the amplifier output and leave the black ground one free?
I don't want to risk it, I'll go with the RCA ones!
At this point it is better to use the classic Preamp (low level Input) with a Y RCA cable connected to the Nad (these Rel subs are very particular) but on a two-channel system they are fabulous.
See you soon.
I also saw the link, but I got a bit confused with the explanation of living in France, Northern Italy, Germany and moving to England... -
I don't understand the mass issue so I should only connect two rows to the amplifier output and leave the black ground one free?
I don't want to risk it, I'll go with the RCA ones!
At this point it is better to use the classic Preamp (low level Input) with a Y RCA cable connected to the Nad (these Rel subs are very particular) but on a two-channel system they are fabulous.
See you soon.
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I don't think so.
I assume you have used machine translation. as "mass" instead of ground/earth is a common machine translation issue.Ok yes I saw the photos of the 298 they show two RCA outputs, I assume they are variable, so I can connect active subwoofer.
I also saw the link, but I got a bit confused with the explanation of living in France, Northern Italy, Germany and moving to England... -
I don't understand the mass issue so I should only connect two rows to the amplifier output and leave the black ground one free?
I don't want to risk it, I'll go with the RCA ones!
At this point it is better to use the classic Preamp (low level Input) with a Y RCA cable connected to the Nad (these Rel subs are very particular) but on a two-channel system they are fabulous.
See you soon.
If your subwoofer is unbalanced (signal + ground) and uses the same earth/ground for signal as the power supply, you can not connect the inputs to a differential/symmetric/bridged power amplifier speaker output.
nothingman
Senior Member
Really? You would know given all the equipment you’ve had your hands on, and I’ve never used line-out from a power amp, but doesn’t it just pass through whatever it receives from the pre-amp in terms of voltage?
Yes, it does.
They simply relay out whatever comes in. They are not variable since there is no control to vary them. Also, you cannot roll off the main speaker output.
You will be limited in how you can integrate the subs with the amps.
What are you feeding to the NAD? Have you considered simply splitting the input to the NAD?
nothingman
Senior Member
Ah, then we’re just unclear on what @Alexx means by variable. I think they just meant that to mean the line-out from the C298 would scale properly with the signal sent to the mains.
Agree on all the stuff about limitations in integration. I wasn’t willing to open that can of worms.
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