Crown DC300A-II or (2) bridged D150A-IIs?
(Not sure if this goes here or in "General Audio" so feel free to move if appropriate)
I posted this on the Crown forum at CrownAudio.com but they all seem to be asleep or not interested. (In fairness, Crown's David Glass appears to be on vacation.) So here goes:
I've recently added some "new" old JBL speakers to my inventory and have considered how to accomodate their power needs. I currently own an original Crown D150, (2) D150A-IIs, and a DC300A-II. According to Crown specs the D150A-IIs will put out 315w @ 8 ohms in bridged mode versus the 300's 175w/channel in stereo mode. I distinctly remember inquiring at Crown a few years ago when I considered running two 150s in bridged mode versus buying a 300 to use in stereo to power my L112s and was told to just get a 300. Given that I now have the amps to go either way, what are the benefits and/or disadvantages to one set-up over the other? I also may end up with an electronic crossover at some time, if that changes the ideal configuration.
The speakers are JBL L150A with a max-power rating of 300w. I'm currently powering a very early 16-ohm JBL 030 system (in the family since I was two-years-old) with the DC300 (yeah, overkill but it sounds 'better' than the D150! :bs: ). My original "faceless" D150 has been powering a similar-to-L150A JBL L112 pair for over twenty years with great results but who knew I could use 300 watts per side with these things? Is the DC300A-II output cleaner in stereo mode than the D150A-II in bridged? Can Crown's power specs be wrong?
Thanks.
Scotty, We need more power...
Quote:
I'm currently powering a very early 16-ohm JBL 030 system (in the family since I was two-years-old) with the DC300 (yeah, overkill but it sounds 'better' than the D150! :bs: ).
I don't know why you included that BS Smiley in your posting. I have tested several Crown Amplifiers with my old 030 system. A D-75A in Dual Mode, Two D-75A amps in bridged-mono mode, a K1 and a even a K2. And with each increase of amplifier power, the transient response improves.
I have found that my 030 system sounds best with a Crown K2 and that is no :bs:
So, there is no such thing as overkill.
Baron030
I just checked to D150 at the station.
Quote:
Originally Posted by
DjWolfe
I've come into possession of a D150A and for the life of me cannot find the proper instructions online anywhere on how to bridge to mono. Obviously you flip the switch to mono, but what is the output plugin configuration to properly Bridge to the 325W Mono?
Thanks guys :)
Mine dose not have any directions ether. In general to go mono mode you flip the switch, connect only one input usual input #1. Output connections in mono mode only use the red banana jacks, DO NOT EVER USE THE BLACK BANANA JACKS WHEN IN MONO MODE!