Previous Thread
Next Thread
Print Thread
Rate Thread
Page 3 of 3 1 2 3
Re: Real Newb Question
Diamondog #383215 09/24/12 02:38 AM
Joined: Nov 2011
Posts: 172
veteran
Offline
veteran
Joined: Nov 2011
Posts: 172
Actually John, the 50 watts you refer too, would that include the dynamics of the sound? Take a modern action movie with lossless multi-channel sound. The peaks can go well over 50 watts I would think, no?


For every expert, there is an equal and opposite expert.
Re: Real Newb Question
Boltron #383220 09/24/12 03:47 AM
Joined: May 2002
Posts: 10,654
shareholder in the making
Offline
shareholder in the making
Joined: May 2002
Posts: 10,654
No; as I stated, the 50 watts were for the max peak of 102dB. At more typical levels, about 1 watt is used.


-----------------------------------

Enjoy the music, not the equipment.


Re: Real Newb Question
Diamondog #383225 09/24/12 11:31 AM
Joined: Nov 2011
Posts: 172
veteran
Offline
veteran
Joined: Nov 2011
Posts: 172
Ah thank you, I misread. That's good info.


For every expert, there is an equal and opposite expert.
Re: Real Newb Question
JohnK #383631 10/04/12 01:54 AM
Joined: Jan 2012
Posts: 90
old hand
Offline
old hand
Joined: Jan 2012
Posts: 90
Originally Posted By: JohnK
No; as I stated, the 50 watts were for the max peak of 102dB. At more typical levels, about 1 watt is used.


Quick question: I have 2 monoblocks (32 dB gain) rated at 350W RMS, and 2 M80 v3. I crank the volume on my prepro at half (I like it loud, what can I tell you grin); my SPL meter at 1 meter distance shows a peak of 98dB with music.
What am I missing? Either my math it's very bad, something is horribly wrong with my setup or my prepro outputs close to nothing.


M80 v3, 2 x Emotiva UPA-1 Monoblocks, XPA-5, UMC-1 PrePro
Pro-Ject RPM Genie, Carver C2 Phono Preamp
Re: Real Newb Question
AdrianD #383633 10/04/12 02:35 AM
Joined: May 2002
Posts: 10,654
shareholder in the making
Offline
shareholder in the making
Joined: May 2002
Posts: 10,654
AD, I don't know why you suspect that you may be "missing" something; what you report is fairly typical. That 98dB peak uses 10 watts or a bit less for the M80s. The overall volume attained at specific volume level settings varies with the strength of the input from the source materials. Pre-amps typically have a gain(fixed, as is the amplifier gain)on the order of 15dB.


-----------------------------------

Enjoy the music, not the equipment.


Re: Real Newb Question
JohnK #383651 10/04/12 11:36 AM
Joined: Jan 2012
Posts: 90
old hand
Offline
old hand
Joined: Jan 2012
Posts: 90
Originally Posted By: JohnK
AD, I don't know why you suspect that you may be "missing" something; what you report is fairly typical. That 98dB peak uses 10 watts or a bit less for the M80s. The overall volume attained at specific volume level settings varies with the strength of the input from the source materials. Pre-amps typically have a gain(fixed, as is the amplifier gain)on the order of 15dB.

And right you are Sir; thinking about it a little bit, I remember sometime ago I did a little test. I plugged in my old Carver C2 preamp (which I now use as a phono amp only via my prepro) directly into the amps. The volume control knob has a scale from 1 to 10; at 3, it was MUCH louder then then half volume on the prepro. Needless to say, so was the noise.
So I dug up the specs on the Carver: MM Gain is 35 dB, while I suspect my prepro is in the range you suggested: around 15 dB.
Thank you!


M80 v3, 2 x Emotiva UPA-1 Monoblocks, XPA-5, UMC-1 PrePro
Pro-Ject RPM Genie, Carver C2 Phono Preamp
Page 3 of 3 1 2 3

Moderated by  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,939
Posts442,452
Members15,615
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,441
SirQuack 13,840
CV 12,077
MarkSJohnson 11,458
Who's Online Now
0 members (), 221 guests, and 0 robots.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4