Dr DJ Choss
Jul 4 2003, 12:01 PM
How many of you would agree with this?.
All car audio power ratings should tested and publicised under an industry wide standard.
For example: 12 VOLT RMS POWER AT 4 OHMS STEREO AND MONO Also, variations like 14.4 volts and 1 & 2 ohm stereo and mono would be nice.
No more lies, deceit and confusion...
[ July 04, 2003, 10:02: Message edited by: R ]
roughcactus
Jul 4 2003, 12:22 PM
but then what would happen to boss and audioline.....
RM Audio
Jul 5 2003, 01:30 AM
I for one would welcome some rational, standard testing proceedures.
For example I was in an Autobarn today and saw a set of Clarion speakers that claimed some increadible power rating like 300 Watts for $289, to the novice these would be mighty impressive, however when you read the fine print they were in fact only a 60 W/RMS speaker!
Companies fudge figure and deceive people because as a marketing trick it works and makes them money.
I would like to see all speakers rated in RMS and RMS ONLY!
No more Peak Power, Max Dynamic Power, Maximum Peak Power, etc.
Amps should all be rated at 13.8V @ 4 ohms (The majority of the worlds cars run on 13.8V NOT 14.4V)
Power Ratings should be at 1.6kHz for stereo channels, and at 20 Hz for any sub channels or in bridged mode.
Will this ever happen?
I doubt it.
After all, it's just marketing hype and a good splattering of BS !
Phil K
[ July 04, 2003, 23:36: Message edited by: RM Audio ]
Jetstream
Jul 5 2003, 07:48 PM
I guess it depends on which side of the fence you are on, if you are from a high end company such as Alpine, PG, RF, Audison, Orion etc - you would welcome such a move
However if you are from Boss, Califonia Gold, Rokewood etc it would show exactly how bad your product is.
I personally think that sub amps should be 2ohm, cos thats where most of them put out most power etc. But it should def be 13.8V.
Same goes for the sensitivity readings, and same goes for battery readings as well.
Subatomic
Jul 5 2003, 10:47 PM
QUOTE
Originally posted by RM Audio:
[QBI would like to see all speakers rated in RMS and RMS ONLY!
No more Peak Power, Max Dynamic Power, Maximum Peak Power, etc.[/QB]
YES!!! i'm sick of peak power bs!! like a guy from work got 1 of those boss amps and thinks he's got 1000 watts!!
MitekSimonBroadley
Jul 6 2003, 05:12 AM
The CEA has embarked in creating a standard for testing and claiming Power, THD, S/N.... and such. Currently it is known as CEA-2006.
As for all companies using the standard, the pressure at this point will need to come from the consumers. But, I expect the companies involved in creating it should be using it on all of their products within the next 2 years.
So, the days of Peak Power, Peak to Peak Power, and our favorite, ILS (If Lightning Strikes) should be numbered.
Simon
basic124
Jul 6 2003, 05:35 AM
ROFLMAO @ the ILS rating method... hahahaha...
Bassaholic
Jul 6 2003, 11:09 PM
I would like to point out that "12 VOLT RMS POWER AT 4 OHMS STEREO AND MONO" is not specific enough. There should be a specific signal used, as well as a specified THD amount (such as 1%).
MitekSimonBroadley
Jul 7 2003, 10:56 AM
The Power part of the standard outlines 5 conditions.
1. RMS Power
2. Power sustainable over the bandwidth of the amplifier up to 20Hz-20kHz.
3. 4 ohms
4. 14.4 VDC
5. 1% THD+N
Additional ratings may also be added, but full disclosure of the conditions is a must.
Does everyone think this helps?
Thanks
Simon
[ July 07, 2003, 08:56: Message edited by: MitekSimonBroadley ]
nemesis
Jul 7 2003, 12:20 PM
definately, without doubt it helps. but as suggested i think it would be more appropriate to have 13.8V ratings as opposed to 14.4V ratings as most alternators supply this, however anything is better than the current methods
MitekSimonBroadley
Jul 7 2003, 01:43 PM
I would agree. We(Mitek) use 12.5VDC for our testing as it simulates the "car off" situation. 14.4V is much closer to the "car on" as typically I have measured 14.2-14.6 with the alternator charging the car.
The consensus of the group was to use 14.4V. Either way, as PiMPiN5 said, "anything is better than the current methods" has to be in a step in the right direction.
Fingers Crossed we'll see compliance by all of the manufacturers shortly.
Thanks
Simon
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