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Class D Power Amp Users: Please Report In.

#21
I still have the HD1500. I found that it clips very easily. I don't know if its my technique or whatever, but the BX1500, which has the same power amp, also clipped way too early for me. I get a distorted sound with the clip light pretty much flickering almost constantly. That's with a Tone Hammer pedal set close to flat and not too loud volumes.

I'm currently using the HD1500 for PA duties.
 
#22
That interesting because I was running it bridged at 4 ohms, pushed it hard and it never clipped.

::::BASSIST:::: said:
I still have the HD1500. I found that it clips very easily. I don't know if its my technique or whatever, but the BX1500, which has the same power amp, also clipped way too early for me. I get a distorted sound with the clip light pretty much flickering almost constantly. That's with a Tone Hammer pedal set close to flat and not too loud volumes.

I'm currently using the HD1500 for PA duties.
Click to expand...
 
#23
I've never been able to figure that one out either, your clip prob with the BX1500.

Mine doesn't. With a Spector with EMGs. (P & CSTW). And an Aggie OBP-3. At 18 V. Even with a VTD. Into two Kappalites. Digging hard. Carrying a large room with no PA. Not sure what I could do to beat up on it worse than that! :D
 
#24
I was pushing two Bergantino HT210s with my HD1500 (Eden WTDI and passive jazz bass). No clipping and no distortion, usually running the volume at about 1 o'clock and I do dig in and even slap a little. And I had pushed the volume past that with no clipping either but that was just stupid loud.

makohund said:
I've never been able to figure that one out either, your clip prob with the BX1500.

Mine doesn't. With a Spector with EMGs. (P & CSTW). And an Aggie OBP-3. At 18 V. Even with a VTD. Into two Kappalites. Digging hard. Carrying a large room with no PA. Not sure what I could do to beat up on it worse than that! :D
Click to expand...
 
#25
My IPR1600 has taken an absolutely merciless sh|tkicking on many occasions, from driving my cab with one side and PA from the other, to bridging it at 4 ohms to drive a pair of subs slamming the limiter on every kick, still 100%. I love demonstrating how cool it is after I abuse it, freaks people right out. Only reason to spend any more on another brand is the extremely annoying lights. I opened mine up and put electrical tape over most of them, quite tolerable now.

FYI yes you can bridge IPR's with two custom cables, a TRS-MXLR phase inverter to jump the two inputs, and a speakon Y-adapter with each of the 1+/- conductors of a female speakon or 1/4" jack wired to the 1+ only of two other speakon plugs. The output into a 4 ohm load isn't great though, it should have damaged my 800W LS808's, they were much louder with an IPR3000 wired dual mono (500Wx2).
 
#26
makohund said:
I've never been able to figure that one out either, your clip prob with the BX1500.

Mine doesn't. With a Spector with EMGs. (P & CSTW). And an Aggie OBP-3. At 18 V. Even with a VTD. Into two Kappalites. Digging hard. Carrying a large room with no PA. Not sure what I could do to beat up on it worse than that! :D
Click to expand...
I don't know what's going on either. I really like that BX1500 in terms of tone and features and would have happily kept it aside from that clipping issue. Even more weird is that I am not a "meat fisted" plucking or slapping type player. OTOH I have never seen the clip light once on either my QSC 2402 or gkmb800 and have never had this issue with a large number of amps I've owned previously. Makes me weary of trying another Carvin. They just dont seem to be the right fit for me.
 
#27
I just got the IPR1600 and so far I'm very happy with it. I have been using it with all sorts of different loads and speakers. I have found that it makes a big difference when using efficient speaker in regards to volume but that is a different issues. Quality wise it looks pretty good but the case seems a little thin so I'm ordering a rack bag to keep mine in.

Others have posted about how cool temp wise it is and i have to agree with them. After a 3 hour practice with being pushed pretty hard it was just as cool as when i turned on.

Others have also posted about the LEDs inside being stupid bright. I kinda like the lights but if you look into it at the wrong angle its pretty blinding so it goes well with my Eden WTDI that felt like I got laser eye surgery the first time I plugged it in.

All in all a good amp I think
 
#28
I have a fair amount of miles on my Crown Drivecore XLS1500

Some guys have mentioned that the input sensitivity isn't as loud as they would like, I personally have not had any issues running bridged at 1400watts (4ohms)

On one gig that DID have power issues the amp did cut out and come back on a few times while playing but to be fair the PA power amps were doing same.

The class D amps do seem to be more sensitive to power issues and their protective circuits come on a bit earlier.
 
#31
I have a Crown XTi1000 bridged into 4ohms into a Barefaced Big Twin T, I use a Pod XT pro as a pre-amp and I find I do have to back the output of the Pod off a bit to prevent the input of the crown from clipping, however, there is plenty of power available so it's never been a problem even with a huge hitting drummer and a volume crazed guitarist...

What is a problem however is that the PSU quit a couple of weeks ago in a rehearsal with no warning, and there seems to be a lack of techs able to deal with it, so it has to go back to the importers for repair.

I like the amp, have used Crown for years, I think I've just been unlucky.
 
#34
Have owned and gigged with two Class D heads in the past year plus. First had an Ampeg PF-500, but an early one so the board fried. After they fixed it, no issues. Ended up selling it and getting an Orange Terror Bass 500. This is its first real tour, will be 32 shows all told, about a third of the way through and so far just awesome!
 
#35
I double checked on the Carvin website which shows the current model DCM 2000L as Class D. The manual for my amp -same model- says that it's Class AB. Maybe Carvin is morphing towards Class D for their power amps. Well, whichever Class mine is it kicks butt. It powers a very large cabinet in my rig with clean tone. I use my DCM 2000L in one of 2 modes for 4 ohms: one channel @ 700 watts or both channels bridged @ 2000 watts.
Carvin is wise to have a dedicated "bridge speakon" on the back of some models. That's one of the reasons why I chose the DCM 2000L.
 
#37
Forgot to mention some things for the OP. The build quality of the Carvin DCM 2000L is very good. The manual is easy to read and understand. Carvin power amps come with a 3 year warranty and I don't think I'll need it at all. It's completely quiet and makes no weird pops or any annoying noises. The back panel is very well layed out and easy to connect with cables. I had no difficulty getting a factory tech on the phone a couple of times and they were very helpful. And last, there are no rattles when I place the power amp on top of my 1515/66.
 

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