If I can recall properly, aren't you running a JBL BP 600.1 or is it the 300.1? How do you like it for power?
Reason I am asking is I am still running the USB 2150 bridged for bass. It isn't bad at all for power, but it really limits my options for subs in that it is only 4 ohm stable bridged. I am often testing different subs and need something at least 2ohm stable. I've got an 300.1 laying around, yet subwise it isn't really powerful enough to run a pair.
I thought about the 600.1 and even the 1200.1 though it is a electrical beast. Not too sure about the latter with it's taxing.
What's your thought?
Replies (2)
swez on 07/29/2007 12:02:17
Hi Ash,
Have an older Decade Series JBL DA-1002. It's a 2 channel amp and delivers a tad over 300 RMS bridged @ 4 ohms. Basically, in the same boat you are. It's enough power to drive a pair of highly efficient 10's OK, but not a real street thumper either. (But enough to do what is needed)
Yes, as we move up the ladder in power, the current draw issue can become a problem. As I see it, we need a new tranducer for bass that can deliver much better efficiency levels than a typical cone woofer. Most subs are are well below 95dB of SPL @ 1 watt/1m. That's where technology has languished for years.
There are some Pro drivers out there that can do over 100dB SPL @ 1 watt, but these are very expensive and need very large boxes too. So, for the moment we are stuck with low efficiency drivers and larger power amps to get the SPL levels up.
A 300 watt amp is fine for SQ type bass. In a well designed enclosure, 120dB is easy to obtain with 1-2 subs. But if one is shooting for low 140's SPL, a very efficient woofer and enclosure is needed and take advantage of all cabin gain we can muster. (Something like the Wicked One would do it or a BP enclosure)
Swez
Victor on 07/29/2007 14:30:27
Wicked one... thumbs up....
Reason I am asking is I am still running the USB 2150 bridged for bass. It isn't bad at all for power, but it really limits my options for subs in that it is only 4 ohm stable bridged. I am often testing different subs and need something at least 2ohm stable. I've got an 300.1 laying around, yet subwise it isn't really powerful enough to run a pair.
I thought about the 600.1 and even the 1200.1 though it is a electrical beast. Not too sure about the latter with it's taxing.
What's your thought?
Replies (2)
swez on 07/29/2007 12:02:17
Hi Ash,
Have an older Decade Series JBL DA-1002. It's a 2 channel amp and delivers a tad over 300 RMS bridged @ 4 ohms. Basically, in the same boat you are. It's enough power to drive a pair of highly efficient 10's OK, but not a real street thumper either. (But enough to do what is needed)
Yes, as we move up the ladder in power, the current draw issue can become a problem. As I see it, we need a new tranducer for bass that can deliver much better efficiency levels than a typical cone woofer. Most subs are are well below 95dB of SPL @ 1 watt/1m. That's where technology has languished for years.
There are some Pro drivers out there that can do over 100dB SPL @ 1 watt, but these are very expensive and need very large boxes too. So, for the moment we are stuck with low efficiency drivers and larger power amps to get the SPL levels up.
A 300 watt amp is fine for SQ type bass. In a well designed enclosure, 120dB is easy to obtain with 1-2 subs. But if one is shooting for low 140's SPL, a very efficient woofer and enclosure is needed and take advantage of all cabin gain we can muster. (Something like the Wicked One would do it or a BP enclosure)
Swez
Victor on 07/29/2007 14:30:27
Wicked one... thumbs up....
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