digital amp or mosfet?

[ent3rdadragon 10+ year member]

I have a panasonic 5310u HU and I am thinking about replacing it with a panasonic CQ-C9800U. I was reading the specs and the CQ-C9800U doesn't have mosfet and I hear a lot of good stuff about it. I was wondering if the digital amplifier is better or worser then mosfet and should I switch it?

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[Raven 10+ year member]

What I've read about it is probably what you've been told already. Good HU, gets loud. Won't do rated power. A new kind of distortion only a class T amp can provide. Etc, etc.

 

[JimJ 5,000+ posts]

Of course it has MOSFETs...if it didn't, it would be tube based //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Chevyaudio 5,000+ posts]

oooo, Tube HU

 

[Raven 10+ year member]

Of course it has MOSFETs...if it didn't, it would be tube based //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Any transformer will do, it doesn't necessarily have to be a MOSFET. They are just better suited to the task.

 

[thch 10+ year member]

Of course it has MOSFETs...if it didn't, it would be tube based //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Any transformer will do, it doesn't necessarily have to be a MOSFET. They are just better suited to the task.

possibly you mean "transistor"?

and you don't need to have MOSFETs in an amp. plenty of bipolar junction transistor based amps out there.

MOSFET = buzzword.

in an interesting sidenote, the vast majority of digital circuits are based on MOSFETs.

fun fact: i have about a quarter billion mosfets sitting near me right now as i type this...

 

[JimJ 5,000+ posts]

I wouldn't go so far as saying MOSFETs are "buzzwords"...//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Like you said, metal oxide field effects are practically everywhere.

And you're right, there are plenty of perfectly good JFET designs out there, I was making a blanket statement based on a guess //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[ngsm13 5,000+ posts]

fun fact: i have about a quarter billion mosfets sitting near me right now as i type this...

WOOOOOOOOOO!!!!!! lol...

NG

 

[squeak9798 5,000+ posts]

and you don't need to have MOSFETs in an amp. plenty of bipolar junction transistor based amps out there.

Some people actually prefer bi-polar to MOSFET amps.

fun fact: i have about a quarter billion mosfets sitting near me right now as i type this...

//content.invisioncic.com/y282845/emoticons/woot.gif.aaa6090e619a97b6090d16dd863c5a69.gif

 

[ent3rdadragon 10+ year member]

What do you guys think about the headunit? It says the actually rms power is 31 watts. Is there a big differnece from 2.5 Volts to 5 volts and 25 watts to 31 watts?

 

[Crown_amps]

i dunno if this is true but some car audio sales person told me that all HU's can only really put out 16 rms and anything over thats over rated per channel....his opinion not mine.

 

[JimJ 5,000+ posts]

I doubt you'll get much more over 15-20W of actual, unclipped power...

 

[ent3rdadragon 10+ year member]

I doubt you'll get much more over 15-20W of actual, unclipped power...

what does clipping sound like? Cause when i turn it all the way pass 25 , it sounds nasty and you hear all this static and crap.

 

[JimJ 5,000+ posts]

Solid state clipping sounds like *** - you'll know it when you've driven the amp to that point. The music will get distorted as the amp outputs more of a square wave than a sine wave...this is what can damage your speakers.

 

[squeak9798 5,000+ posts]

I doubt you'll get much more over 15-20W of actual, unclipped power...

http://tristanrules.com/images/panasonic.JPG

That Panasonic is actually quite a high powered headunit.