Jump to content



Sign up for a free account to remove the pop-up ads

Signing up for an account is fast and free. As a member you can join in the conversation, enter contests and remove the pop-up ads that guests get. Click here to create your free account.


Photo

For all you techheads, please help


  • You cannot start a new topic
  • Please log in to reply
14 replies to this topic

#1 of 15 OFFLINE   David.G

David.G

    Stunt Coordinator



  • 123 posts
  • Join Date: May 07 2004

Posted July 01 2004 - 06:43 AM

ok,does anyone know how to read the ratings of components used for amps and tell how much power they really can make? I'm looking into a company and know they're good quality and really good performance but was just wondering how to read the specs they give it. here's the link

TruTechnologies

I'm looking at the T series or the Tv.2 series.
David is the car audio guy, Jason is the home audio so if you see a post in car audio thats David, if in Home thats more than likely Jason. Confusing isn't it!!! Also i hope i am allowed to put my sounddomain down on my equipment page. Its car audio but you guys might enjoy it.

http://members.sou...

#2 of 15 OFFLINE   Matt`G

Matt`G

    Agent



  • 36 posts
  • Join Date: Aug 18 2003

Posted July 02 2004 - 08:45 AM

As far as reading the generic info they gave on the series description page, I don't think it's possible to derive a power rating. They do list the power ratings though, when you select a specific model: Model: T-2.100 Channels: 2 CH Frequency Response: 10Hz ~ 45KHz ±1dB Rated Power: 14.4 Volts DC T.H.D.: < 0.05% 4 Ohm RMS: 100W x 2 2 Ohm RMS: 200W x 2 4 Ohm Bridged: 400W x 1 It lists the RMS power at 14.4V with the given impedences. Keep in mind that your car will be pushing less voltage than that (usually between 13-13.8V off your alternator), so RMS wattage ratings are actually lower than listed.
Matt G

#3 of 15 OFFLINE   StephenHa

StephenHa

    Second Unit



  • 364 posts
  • Join Date: Sep 28 2003

Posted July 02 2004 - 01:56 PM

my car runs at 14.4, the real question is how do they get their ratings (what frequency was it at)

#4 of 15 OFFLINE   HowardLi

HowardLi

    Extra



  • 16 posts
  • Join Date: Jan 11 2004

Posted July 04 2004 - 06:40 AM

The frequency response listed is +/- 1dB, so you should get the same power at all frequencies.

#5 of 15 OFFLINE   Stephen Matthew

Stephen Matthew

    Stunt Coordinator



  • 81 posts
  • Join Date: Dec 20 2001

Posted July 15 2004 - 04:05 AM

there is no enforced standard in 12v which is why youve got to be careful who you buy from. The tru amps i believe are rated full range, though most 12v amps are rated at 1khz. killer amps btw, the only issue ive seen is that on some of the T03 models, there is a very high pitched whine coming from the amp itself.... not what you would expect from an amp of that quality.but all of the others are incredible and quite underrated.. build quality is obscene also..
Semper Fidelis

#6 of 15 OFFLINE   Denton

Denton

    Stunt Coordinator



  • 82 posts
  • Join Date: Aug 01 2001

Posted July 15 2004 - 05:37 AM

More manufacturers are beginning to use the CEA's rating system. Curiously, one of the most active in this area has been Blaupunkt. From Crurchfield's web site: CEA-2006 Compliant On May 28, 2003, the Consumer Electronics Association published standard CEA-2006, "Testing & Measurement Methods for Mobile Audio Amplifiers." This "voluntary" standard advocates a uniform method for determining an amplifier's RMS power and signal-to-noise ratio. Using 14.4 volts, RMS watts are measured into a 4-ohm impedance load at 1 percent Total Harmonic Distortion (THD) plus noise, at a frequency range (for general purpose amplifiers) of 20 Hz to 20,000 Hz. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. This applies to both external amplifiers and the amplifiers within in-dash receivers. CEA-2006 allows consumers to be able to compare car amplifiers and receivers on an equal basis. Manufacturers who choose to abide by the new standard are able to stamp their products with the CEA-2006 logo that reads: "Amplifier Power Standard CEA-2006 Compliant."
"Watching television is like taking black spray paint to your third eye." Bill Hicks

#7 of 15 OFFLINE   Stephen Matthew

Stephen Matthew

    Stunt Coordinator



  • 81 posts
  • Join Date: Dec 20 2001

Posted July 15 2004 - 11:20 PM

unfortunately the number is still somewhere around 2-3% of companies id wager that are using that standard...
Semper Fidelis

#8 of 15 OFFLINE   David.G

David.G

    Stunt Coordinator



  • 123 posts
  • Join Date: May 07 2004

Posted July 24 2004 - 02:00 AM

if you look at components used you can get a general idea of capable power. The T03, more than likely you're talking about a pre-production one. I've called about a couple of them and they're not even out yet, or they were redoing them. Tru's amp are awesome and IMO beat out Zapco due to the surplus power supply they have. Talked with John Yi and he said Tru's power supply is 40% larger than Zapco and 100% larger than JLs. Thats insane. I've seen and listened to 2 cars using Tru and its incredible the detailed that amps are. CNC machined cases look pretty and their reproduction abilities are insane, especially with the Burr Brown upgrade( makes a difference in the mids).
David is the car audio guy, Jason is the home audio so if you see a post in car audio thats David, if in Home thats more than likely Jason. Confusing isn't it!!! Also i hope i am allowed to put my sounddomain down on my equipment page. Its car audio but you guys might enjoy it.

http://members.sou...

#9 of 15 OFFLINE   Dave Milne

Dave Milne

    Supporting Actor



  • 569 posts
  • Join Date: Jul 02 2001

Posted July 26 2004 - 10:12 AM

The switch-mode power supplies in high-power amps typically are regulated (pulse-width modulated). Therefore changes in input voltage have almost no affect on output power. The amp just draws more current from the car's electrical system at lower voltage

#10 of 15 OFFLINE   David.G

David.G

    Stunt Coordinator



  • 123 posts
  • Join Date: May 07 2004

Posted August 13 2004 - 07:48 AM

they're unregualted actually.
David is the car audio guy, Jason is the home audio so if you see a post in car audio thats David, if in Home thats more than likely Jason. Confusing isn't it!!! Also i hope i am allowed to put my sounddomain down on my equipment page. Its car audio but you guys might enjoy it.

http://members.sou...

#11 of 15 OFFLINE   Michael^DC

Michael^DC

    Extra



  • 23 posts
  • Join Date: Aug 10 2004

Posted August 13 2004 - 11:52 AM

My family has just recently purchased a Cd player. And is not really happy for it. They seem to base it on looks. So what does it come down to when you want to buy a good looking yet good power CD player?

#12 of 15 OFFLINE   David.G

David.G

    Stunt Coordinator



  • 123 posts
  • Join Date: May 07 2004

Posted August 14 2004 - 03:27 AM

get Eclipse, period. Pioneer have more flash and are good, but no one complains about Eclipse. Get like a 54 series. They're really good. Even Eclipse lower end, 34 series, is better than most mid level.
David is the car audio guy, Jason is the home audio so if you see a post in car audio thats David, if in Home thats more than likely Jason. Confusing isn't it!!! Also i hope i am allowed to put my sounddomain down on my equipment page. Its car audio but you guys might enjoy it.

http://members.sou...

#13 of 15 OFFLINE   Dave Milne

Dave Milne

    Supporting Actor



  • 569 posts
  • Join Date: Jul 02 2001

Posted August 18 2004 - 06:56 AM



#14 of 15 OFFLINE   David.G

David.G

    Stunt Coordinator



  • 123 posts
  • Join Date: May 07 2004

Posted August 20 2004 - 03:35 AM

here's from their website....John Fairchild is their main house engineer. Remember his name!? - Broad Range 2 & 4 CH Class AB Amplifiers - Constant Rated RMS Power Output until Thermal Shutdown - 2 oz. “Pleated Hole” PC Board - High Current Unregulated Bi-Polar Power Supply - Hand Soldered 10 Gauge Power Wire on to the PC Board - Discrete Amplifier circuitry - PROPRIETARY RF grounding techniques used for Improved Reliability and HF noise rejection - (2) Differential pairs of complimentary input transistors - (8) ON® TO-3 Metal case audio output devices - (8) I.R.® HEXFET® Power Inverter for Efficiency - (2) Power Transformers - (4) 2,200mf 50 Volt Capacitors on Rails - (2) sets of High-Speed rectifier diodes - Symmetrically mounted heat generating parts - 18dB Hi/Low pass filter (50Hz ~ 500Hz) - Thru Output (RCA: Not affected by X-over or Gain) - Variable Low Frequency Boost Circuit (T-2.100) - Optional Remote Bass control knob (T-2.100) - 4 Gauge Power/Ground Input - 8 Gauge Speaker Wire Output - Hand Built in California, U.S.A.
David is the car audio guy, Jason is the home audio so if you see a post in car audio thats David, if in Home thats more than likely Jason. Confusing isn't it!!! Also i hope i am allowed to put my sounddomain down on my equipment page. Its car audio but you guys might enjoy it.

http://members.sou...

#15 of 15 OFFLINE   David.G

David.G

    Stunt Coordinator



  • 123 posts
  • Join Date: May 07 2004

Posted August 20 2004 - 03:41 AM

i really would like to find a place that states the specs for each little component, like what grade is a component and all. because power is power, no questio on that, but components used can change alot or to find actual power potential.
David is the car audio guy, Jason is the home audio so if you see a post in car audio thats David, if in Home thats more than likely Jason. Confusing isn't it!!! Also i hope i am allowed to put my sounddomain down on my equipment page. Its car audio but you guys might enjoy it.

http://members.sou...




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users