Well, that’s all I needed to hear.
Words of truth from the source of this battle-hardened beast. In my playing world that amp would likely not last the night for any number of reasons
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Can a generic Class D power amp works?
- Thread starter DonaldR
- Start date
Words of truth from the source of this battle-hardened beast. In my playing world that amp would likely not last the night for any number of reasons
looks like roadies used that poor D800+ as a hockey puck .....lol
These sold out of their first run in 1 day
Fosi Audio ZA3 Balanced Dual-Mode Class-D Amplifier
Teardown review with Dyno tests
"Mono" is actually Parallel Bridge Tied Load (PBTL). It is stable in this mode to 2-ohms.
Fosi Audio ZA3 Balanced Dual-Mode Class-D Amplifier
Teardown review with Dyno tests
"Mono" is actually Parallel Bridge Tied Load (PBTL). It is stable in this mode to 2-ohms.
You can use a "generic class D" amp, but I"d suggest one made for live sound use instead - something made by Crown, QSC, or the like. They will cost a bit (maybe several bits) more, but they are made for use in the environments that live music is played in. The thing you're looking at, not so much.
So, is this amp owned by Frank Beard, or is it used by a bassist that has a unique new tuning?
70% outside, 3-4hr gigs, typically 3-4 a week, South Texas Coastline all year long
Like a champ. I want for no other. I thought I’d lost it forever a few weeks back and my world was shook to the core until I found it had been left behind and stashed away in a previously gigged bar’s storeroom.
For me, after 50 years it’s come down to this head.
It’s not legal for sale, but clearly it is being sold. Whats the potential outcome of that illegality? Home insurance is void, federal crime with jail time…?
I'm not an engineer, but I've worked alongside product development for a long time. There are many reasons for using wall warts -- assuming they're well engineered with all of the necessary approvals. Probably the main one is that the output is "low voltage" meaning that the product being powered qualifies as "low voltage" as well.
Another reason is to outsource the engineering of subsystems, and exploit economies of scale. For instance it's hard for a bass amp maker to make a thousand power supplies a year, but easy for a power supply maker to make a million a year. Same reason why we don't make our own capacitors, but at a higher level. And the makers of those higher level components are eager to earn your business by making sure their designs will contribute to successful regulatory testing. For instance the parts might not qualify for UL approval by themselves, but are designed and documented according to those standards.
For extremely small gadgets, the wall wart is smaller than an IEC power cable.
For very small products, power consumption is often low enough, and margins high enough, that you can afford to over-spec the power supply. "When in doubt, make it stout." This gets difficult to impossible when you get into power levels where a) over-design is un-economical, and b) the performance of a product is affected by the interaction between the device and its power supply.
Another reason is to outsource the engineering of subsystems, and exploit economies of scale. For instance it's hard for a bass amp maker to make a thousand power supplies a year, but easy for a power supply maker to make a million a year. Same reason why we don't make our own capacitors, but at a higher level. And the makers of those higher level components are eager to earn your business by making sure their designs will contribute to successful regulatory testing. For instance the parts might not qualify for UL approval by themselves, but are designed and documented according to those standards.
For extremely small gadgets, the wall wart is smaller than an IEC power cable.
For very small products, power consumption is often low enough, and margins high enough, that you can afford to over-spec the power supply. "When in doubt, make it stout." This gets difficult to impossible when you get into power levels where a) over-design is un-economical, and b) the performance of a product is affected by the interaction between the device and its power supply.
Every amplified or RF device in the house buzzing? Grandpa’s pacemaker failing? Besides, they gotta catch him first, right?
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235W peak, program or RMS? If that isn’t listed I always assume peak because they can list the largest number.
If it is RMS then would be useful on a pedalboard.
- Feb 12, 2006
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- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
That one has seen a lot of gig miles for sure!
Good question, perhaps in the paraphrased words of Clint Eastwood... "Do you feel lucky?" Well, do ya, punk?"
edwinhurwitz
Supporting Member
OTOH, I have used home audio units that required adapters but sounded great! Especially the second one. They weighed quite a bit more than a Class D amp module, though.
Not to get overly technical, but from what I’ve read, the class D power section is merely only a PART of these modern bass amps. Yes, obvious issues like input level and physical connectors and power supplies come to mind, but there’s actually some very complex filtering going on as well. The way class D works Introduces all sorts of noise that you wouldn’t have gotten when you tried a generic standard type of power amp for a PA in the past. The bass amps use filtering to remove that sound from the class D. It’s required and different based on the use. Perhaps someone that knows more about this can shed some more light? Hope this helps.
