I’m new here, and my English is not very good, but I hope you can help me to solve my problem
Since a year, I have a Denon Prime 4 all-in-one system at home. I’m a hobby-DJ, but sometimes I will play at partys. I have two JBL Party boxes 310, and I want to connect these speakers as master out with the Prime 4.
If I use the two JBL Partyboxes 310 with Bluetooth, without mixer, there is no problem with the sound quality, at maximum volume. But, when I use these speakers with the Prime 4, at higher volume the sound quality will be very bad, with crackle and noise.
Does anybody knows, why the sound quality will be very bad at higher volume (if I turn the master volume button or the channel volume button to the maximum), if I use these two speakers with the Denon Prime 4? Can I solve this with a setting in the preferences from the Prime 4, is there maybe a double amplifier problem or are the speakers overloaded? I’m not very technical, and I have no idea how I can fix this problem
Which inputs (of the 310) are you using, and which outputs of the Prime 4?
From what I can see online, the 310 doesn’t have any XLR inputs or even line - just two mic inputs. If you’re connecting the Prime 4 directly to these then the signal will distort.
Ah yes - but is he using it? Also, it’s likely that it will be consumer level (-10dB) aux in rather than pro level (+4dB) so overload still a possibility.
I use the two male master outputs on the Prime 4, en I use the two 3,5mm jack AUX-in at the JBL boxes.
So, I use the two male master outputs on the Prime 4, and connect them with two female XLR cables. For longer cables, I have connected the two female cables with another XLR male cable, whose the other exit is the 3,5mm jack.
Thanks for the maximum channel volume advice! And what do you mean with the consumer level and the pro level (-10db and +4db)? Is it neccessary to adjust this setting?
Consumer and Pro devices have different input/output levels. If possible use the same settings, but I don’t exactly know if that setting is available on Prime4.
On the other hand. Check if a normal RCA cinch to mini-jack works better at short distance. Balanced to unbalanced cables can be messy.
If at all possible you should use the unbalanced RCA outputs rather than the XLRs because they’re 0dBu where the XLRs are at +4dBu.
There’s a 12dB difference between consumer and pro level, which is certainly enough to cause distortion.
The speakers are expecting just 0.3 volts and you’re feeding them over 1.2 volts.
Even at 0dBu the RCAs are way above consumer level output. They need to be outputting circa -8dBu to equal the consumer level -10dBV input, so keep the master output knob low.
Best thing is to keep the master and channels low on your prime 4 (11-12o’clock on gain and between 12o’clock and 1o’clock on the master) and then push the volume on your speakers themselves high. If you’re running the prime 4 quite high on gain and master levels then your speakers will distort.
I have similar speakers for home use and use XLR to unbalanced RCA and this is what I do to keep the sound crisp and clear. It’s more about the levels on your prime 4.
