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Marantz Cinema 70s AVR Review
- Thread starter amirm
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It seems to lack a full set of pre-outs...
pogo
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I don't think you need pre-outs for the wide range of the JBL AVR class-D models.
You are not guaranteed such values with the classic AVRs:
For example JBL MA9100HP,
Rated Power @ 4Ω (20Hz – 20kHz, 2 channels driven, 0.5% THD max): 240 W RMS
You are not guaranteed such values with the classic AVRs:
For example JBL MA9100HP,
Rated Power @ 4Ω (20Hz – 20kHz, 2 channels driven, 0.5% THD max): 240 W RMS
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Thank you for the suggestion.
If you can get a brand new with full factory warranty for 700 Euro then I would say it is probably worth getting it if you need/must have a full set of 7.1 channel pre outs. In the US it is listed for $1,200, in that case I would always recommend considering Denon's comparable model as a viable option. If you are okay with just 2.1 pre out, then the AVC-X1800H may be a better option, especially if you can get a good price for one.
I don’t need many channels, that Denon is 400€ in my place. Cinema 70s is for 700€ and that’s not even sale price. I want the best stereo quality and eARC in 700€ budget.
The Denon has eARC, but while the model for US and Canada has 2.1 preouts, the Europe models onky have subwoofee preouts. As for sound quality, the Cinema70 does not sound better. In fact the Denon will sound better in bass if you use Audyssey well, because it has the better XT version, than the Cinema70's lowest Audyssey version.
I don't know which country you in, 400 Euro for the X1800H is dirt cheap for what you get. I use mine in my secondary 2 channel music system, but it sounds as good as my other systems including separates that cost many times more.
I like the Cinema 70 too because the low profile looks good, I only suggested the Denon because you asked about other options. You can take a look of models from Onkyo, Pioneer, and Yamaha as well in that price range.
pogo
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Bluesound Powernode Edge
There is a high probability that this device will soon receive Dirac Live.
I got one in EU for 650 euro. With my LS50 meta speakers I wasn’t happy. At marginally higher volume it just distorted. It was just about was ok for tv watching and listening quietly. Then measurements came out showing the amp section is pretty mediocre. Just yesterday I put two v3 monos instead and use it as a pre amp. I’m happy with this setup for now. I am not actually using the 7.1 at the moment so realistically a wiiim ultra would have been better. The app is supposed to be better than heos.
pogo
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The LS50 Meta has minimum EPDRs of 1.66 ohms between 135Hz and 140Hz and 1.7 ohms between 660Hz and 725Hz, both regions where music can have high energy. The partnering amplifier needs to be comfortable driving 4 ohms.
Source: Stereophile
Source: Stereophile
Based on that, I'd feel more comfortable running no worse than the Cinema 50!
Why not? We have benchmarks for C50 at 4 ohms!
I would ignore such blanket statements, of course the C50 can do it, even easily, but as always it depends on factors such as speaker sensitivity, required spl, distance etc. Without stating the load/use conditions, any such comments about AVR can or cannot drive 4 ohm (or lower so called EPDR values) means very little. Someone seems to get fixated on those terms/jargons without really understanding what they mean. Hate to say this, it takes better than superficial understanding of the often thrown around terms such as "high current", EPDR, output devices SOA etc.
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pogo
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If this were the case, Marantz would also specify the C50 accordingly at 4 ohms. However, a useful specification can only be found for 8 ohms:
Power Output (8 ohm, 20 Hz - 20 kHz, 0.08% 2ch Drive): 110 W
This reminds me of another Marantz amplifier:
And here the power loss (heat) generated in the output stage section is not even visualized.
I assume you understand the basic electrical theory, so, consider this:
The C50 has a rating for 8 ohms, that is 110 W, that means for 4 ohms, it can do 55 W, or 27.5 W for 2 ohms using the same test protocol for 8 ohms, and should be able to do a lot more for shorter duration.
As to heat dissipation due to large phase angles, yes that needs to be considered, but the LS50 only has such relatively large angles and impefance dips at certain narrow frequency range. You have to examine the curve, don't just focus on a single point.
I don't have the meta, but I have been using a tiny $80 Fosi V3 for my non Meta LS50. Using Dirac Live, they sound great, don't even need the subwoofer, no heating issues whatsoever.
You can use the Denon 3800 (which Amir bench tested) as a proxy for C50:
114 W into 8 ohms 2CH driven (95 dB THD+N)
168 W into 4 ohms 2CH driven (87 dB THD+N)
Denon AVR-X3800H Review
This is a review and detailed measurements of the Denon AVR-X3800H 9.4 Home Theater Audio/Video Receiver. It was kindly drop shipped to me by a member and costs US $1,699. Not much to say about the look of the unit as it is pretty much similar/same as last generations. Here is the back panel...
www.audiosciencereview.com
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