Marantz SR7008 Owners Thread - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 40 Old 08-22-15, 10:02 AM
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zinger wrote: View Post
Hello all! I've just set up my SR7008 which i just picked up for 799.99 on a flash sale. I'm currently running a 7.1 Klipsch setup. Now my question is, what kind of amp would sound the best with my RF-7's? They're rated at 250W continuous and 1000w peak. I'm getting decent sound, but I feel like my front R-L are just not getting enough power. can anyone suggest a good amp that will power these suckers and not lose any sound quality?
http://www.soundandvision.com/conten...XE5rhqcBpZU.97
2 channels continuously driven, 8 ohms (watts @ 0.1% / 1.0% THD): 122.5 / 148.0
2 channels continuously driven, 4 ohms (watts at 0.1% / 1.0% THD): 195.4 / 216.8
5 channels continuously driven, 8 ohms (watts at 0.1% / 1.0% THD): 101.2 / 111.5
7 channels continuously driven, 8 ohms (watts at 0.1% / 1.0% THD): 68.8 / 82.2
Read more at http://www.soundandvision.com/conten...8JmB7Rpwss0.99

7 channels all driven equally with a steady test tone is totally unrealistic but since some like to focus on that number let's use it for conversation.
Let's also assume Klipsch fudged the RF7's sensitivity a little bit and use 98dB/w vs 101dB/w.
SPL @ 1 meter (anechoic).
1w 98
2w 101
4w 104
8w 107
16w 110
32w 113
63w 116

That is steady state all 7 channels driven with the same test tone.
The AVR is a beast.
If you want an amp get an amp, but if you are getting one to play louder it needs to be deliver 2x the power of the AVR to gain 3dB more SPL.
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post #12 of 40 Old 08-22-15, 10:18 AM
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Re: Marantz SR7008 Owners Thread

Thank you for the response! So, would it just be better to Bi-amp the fronts using the extra 2 channels instead of getting an amp?
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post #13 of 40 Old 08-22-15, 10:27 AM
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Re: Marantz SR7008 Owners Thread

Bi-amp gains you nothing at all. It's a bit of a useless feature.

Home theater:
Onkyo 805, Yamaha YDP2006EQ, Samson Servo 600 amp
3 EV Sentry 500 monitors across the front, 4 Mission 762i's Surrounds, SVS PB13U sub, Panasonic BDT220, Harmony 1100, Nintendo WiiU
Panasonic PT-AE8000 on a 120" 2,35:1 fixed screen

Living room system:
Sherwood/Newcastle R972, Mission 765's, SVS SBS02's, A/D/S MS3u sub, Yamaha YDG2030EQ
Yamaha KX-393 Tape deck, CDC 805 CD changer, Panasonic BD60, Sony turntable PS-T20
Panasonic TC-P50ST60, HD-PVR & WDTV Live, Harmony 900

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post #14 of 40 Old 08-22-15, 07:46 PM
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Hi Folks!
Greetings! I find my SR 7008 a fab unit. . More powerful than my 6007 and better fidelity. I drive my 9.2 system fine and the speakers are SVS M series. Big ones. Here is an idea that occurred to me. I thought of trying out my 6007 (since I have it as well) as processor and my 7008 as power amp. Some in Audioholics say that pre pro duo would sound more powerful!
I also have Marantz UD 7007 and boy! It is a class act:smiley: but I am not able to control it with the app that Marantz has for iPhones. I am able to control both avrs 6007,7008 with the app but not the Marantz blu ray. It is supposed to! Any ideas?!
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post #15 of 40 Old 08-22-15, 09:16 PM
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?....but I feel like my front R-L are just not getting enough power....


There is nothing wrong with wanting an amp, but if there is a problem with the sound there are many things to investigate before arbitrarily adding an amp.

What is making you think the speakers need more power ??
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post #16 of 40 Old 08-22-15, 09:28 PM
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venkataraman manu wrote: View Post
Hi Folks! Greetings! I find my SR 7008 a fab unit. . More powerful than my 6007 and better fidelity. I drive my 9.2 system fine and the speakers are SVS M series. Big ones. Here is an idea that occurred to me. I thought of trying out my 6007 (since I have it as well) as processor and my 7008 as power amp. Some in Audioholics say that pre pro duo would sound more powerful! I also have Marantz UD 7007 and boy! It is a class act:smiley: but I am not able to control it with the app that Marantz has for iPhones. I am able to control both avrs 6007,7008 with the app but not the Marantz blu ray. It is supposed to! Any ideas?!
I don't know why you would want to use the lower model 6007 as a processor for the 7008 power amps but you cannot do it because the 7008 does not have power amplifier inputs.

I don't know what the apps are supposed to control.
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post #17 of 40 Old 08-23-15, 02:23 AM
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Thanks Chashint
I am sure 7008 has 7.2 analog input. I take the 7.2 preout from 6007 and connect to it. This way the speakers connected to 7008 will play audio from with more power since the processing is done in6007 so 7008 can add more oomph to the big SVS speakers in my HT! What say you?! All inputs and monitor outputs are connected to 6007. Only the audio is given to the more powerful 7008
I have attached foto of the app that's in my iPhone which is supposed to control the Marantz blu Ray like 5007 or 7007 only it doesn't. It is connected to wifi over LAN
THANKS
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post #18 of 40 Old 08-23-15, 02:26 AM
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This is the app that I use to control my avrs. Works well. But no luck with my blu ray. UD7007
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Marantz SR7008 Owners Thread-image_1440314662220.jpg  

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post #19 of 40 Old 08-23-15, 08:17 AM
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venkataraman manu wrote: View Post
Thanks Chashint I am sure 7008 has 7.2 analog input. I take the 7.2 preout from 6007 and connect to it. This way the speakers connected to 7008 will play audio from with more power since the processing is done in6007 so 7008 can add more oomph to the big SVS speakers in my HT! What say you?!
In my opinion there is zero benefit for connecting the system this way.
The analog inputs on the 7008 still go through the processor, double processing is not desirable.
The 7008 is the better machine, more features, better Audessey, overall improvement across the board.
I recommend connecting all sources, monitors, and speakers directly to the 7008 and let the 6007 become a spare unit.
If you cannot use it in another room (bedroom/garage) you can sell it or if you have needy relatives you can gift it to them so it doesn't end up in the trash.
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post #20 of 40 Old 08-23-15, 10:00 PM
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Well, thanks for your suggestions but I do not know how you say that the processor of 7008 is used when only the speakers alone are connected to audio input. All audio and video processing will be in 6007. This is the concept of pre pro as I understand. Besides I will use Audyssey in 7008 of course. Speakers are connected to it,Chashint :wink:
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