What do you think about this Chinese audio processor? Is it any good? LA-480

The DSP is interesting but there are several issues with this DSP though. The AD1955 is from 2002, that's 22 years ago. The AD1955 works internally with 24 bit. That's not generally an issue but it's not cutting edge either. If you are using the DSP for low- to low-mid-level (SQ wise) PA use (PAAAARTYYYY!!), that's not a great issue but okay but if you want to use it for HiFi, there are much better options available for cheap too. The main issue is low level sound reproduction. 24 bit is already a great amplitude representation but if you're getting into the DSP with -50dB (or less), there's not much resolution left, especially if you are applying high filter complexities and strong EQ. To give you a comparison, the cheap Sure DSP works internally with 56 bit, which gives a vastly superior resolution and precision on low level signals. You can get these boards for far below 50 bucks.

The next thing is, I've played with the software for a few minutes and found already several bugs. You will not get future updates when you really need them. Neither on the firmware. Okay, it's very tempting for the price but I'd be very cautious about the device.

Go for it if..

  • you want to use it for some party-PA
  • if you are considering buying an analog xo (it will be better than that, guaranteed)
  • you are so low on cash you can't get ANYTHING else

Don't go for it if..
  • you want to use it for HiFi
  • you want to use it from quiet to full power
  • you keep your expensive speakers alive (you'll never know what the DSP will do if it crashes or if the limiters really work as expected)
  • you want really high SQ
For 300 bucks you can get a Behringer DCX2496LE Ultradrive new, It's not that much more but a completely tested and relieable unit with peak limiters which are working, If that's too expensive get one of the Sure or Tinysine boards (or several of them for more outputs)
 
The DSP is interesting but there are several issues with this DSP though. The AD1955 is from 2002, that's 22 years ago. The AD1955 works internally with 24 bit. That's not generally an issue but it's not cutting edge either. If you are using the DSP for low- to low-mid-level (SQ wise) PA use (PAAAARTYYYY!!), that's not a great issue but okay but if you want to use it for HiFi, there are much better options available for cheap too. The main issue is low level sound reproduction. 24 bit is already a great amplitude representation but if you're getting into the DSP with -50dB (or less), there's not much resolution left, especially if you are applying high filter complexities and strong EQ. To give you a comparison, the cheap Sure DSP works internally with 56 bit, which gives a vastly superior resolution and precision on low level signals. You can get these boards for far below 50 bucks.

The next thing is, I've played with the software for a few minutes and found already several bugs. You will not get future updates when you really need them. Neither on the firmware. Okay, it's very tempting for the price but I'd be very cautious about the device.

Go for it if..

  • you want to use it for some party-PA
  • if you are considering buying an analog xo (it will be better than that, guaranteed)
  • you are so low on cash you can't get ANYTHING else

Don't go for it if..
  • you want to use it for HiFi
  • you want to use it from quiet to full power
  • you keep your expensive speakers alive (you'll never know what the DSP will do if it crashes or if the limiters really work as expected)
  • you want really high SQ
For 300 bucks you can get a Behringer DCX2496LE Ultradrive new, It's not that much more but a completely tested and relieable unit with peak limiters which are working, If that's too expensive get one of the Sure or Tinysine boards (or several of them for more outputs)
"analog xo" means "crossover"?

wich DSP software it use?

yea but behringer can also crash (?) and has 6 out Vs 8 out...

For €200 it's tempting me but you've already scared me XD If I can't use crossover, or trust the limiters... it's useless.
 
"analog xo" means "crossover"?

Yes. Analog crossover.

wich DSP software it use?

Proprietary software, runs on win only. You can probably/likely also use the buttons on the unit but I can't say anything about how useful that is. Or if it can store different setups.

yea but behringer can also crash (?) and has 6 out Vs 8 out...

Do you need 8 oout channels? If you need that much, I would not trust that much amps and speakers to be controlled by such a dodgy dsp.

For €200 it's tempting me but you've already scared me XD If I can't use crossover, or trust the limiters... it's useless.

Yes, that's exactly the point. It's such an elementary point in your setup, you have to have 100% trust in it to work perfectly. If it doesn't, it can bomb your event, your speakers, your amps or even the complete signal chain. If there's a point you want to save money, this is not the point you want to! Pick anything else but if the DSP fails, you can't do anything anymore.
 
Yes. Analog crossover.



Proprietary software, runs on win only. You can probably/likely also use the buttons on the unit but I can't say anything about how useful that is. Or if it can store different setups.



Do you need 8 oout channels? If you need that much, I would not trust that much amps and speakers to be controlled by such a dodgy dsp.



Yes, that's exactly the point. It's such an elementary point in your setup, you have to have 100% trust in it to work perfectly. If it doesn't, it can bomb your event, your speakers, your amps or even the complete signal chain. If there's a point you want to save money, this is not the point you want to! Pick anything else but if the DSP fails, you can't do anything anymore.
do you think would be a better option a amplifier with dsp integrate like anmark's?
 
With a separate DSP your setup will be much more flexible. If you want to switch amps, you have to buy a new DSP (or a new amp with an integrated DSP). I would if there's an amp with DSP which is not much more expensive than the same amp without it. The Behringer NX3000D is ~110€ more expensive than the NX3000 (without the dsp). At Thomann Germany it's 439/329€. That's not a suggestion to buy the amp but just an example if the difference is that low or lower, it's probably worth it.

The Crown XLS 1502 (with DSP) is 459€, the model without dsp Crown XLi 1500 is 389, just 70€ difference, in that case I'd take the dsp amp.
https://www.thomann.de/de/crown_xli_1500.htm?type=manufacturer