jhoak
New Member
Posts: 7
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Post by jhoak on Jun 1, 2010 4:31:34 GMT -7
At the moment I'm using the sub-out and crossover in my USP-1 to send a signal to my subwoofer. I want to try a different 2-channel preamp but it doesn't have a sub-out connection.
The subwoofer is an IB in my attic with 2 15" drivers. The amp is a Behringer EP2500 and there is a Behringer Feedback Destroyer acting as an equalizer.
The preamp I want to try out has a second set of outputs but they're full range.
What I need is something to place between the preamp and sub amp/eq to act as a "low-pass" filter at around 80Hz. The other option would be something along the lines of a passive crossover between the sub amp/eq and the drivers.
Since this is an experimental move I don't want to pour a lot of $$ in to the project.
Suggestions?
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Post by ThomasW on Jun 1, 2010 6:49:43 GMT -7
There are specialty sub crossovers like those from Reckhorn. The other option is to use prosound units like the Behringer CX2310 or 3400
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Post by fvoelling on Jun 7, 2010 9:05:58 GMT -7
Some online posts refer to the Behringer crossovers as being "noisy", and the connectors as not properly secured to the chassis (though this may not be an issue if you don't swap cables on a regular basis). And another thread raised concerns about the accuracy of the dials.
Would the dbx crossovers (223,234, and their XL versions) be a step-up in quality and/or sound from the Behringers, especially when used in a 2-channel music system?
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Post by ThomasW on Jun 7, 2010 10:22:26 GMT -7
I've used both the CX2310 and 3400 in a multi-amped system containing a Ayre K5-xe preamp, Ayre V5-xe and Aragon 8008BB power amps. If anyone claims they're hearing noise from the Behringer crossovers, the crossovers are either defective/damaged or there's a problem else where in the system creating the noise.
The only negative I've encountered with the Behringers is their top-end is ever so slightly 'soft'.
I've never owned a DBX product so I can't comment on them.
A step up would be the Rane AC22S/23S or better yet a Marchand XM9. Those with with cubic amounts of $$$$$$ might consider the Marchand XM44.
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Post by fvoelling on Jun 7, 2010 12:07:38 GMT -7
Thanks, Thomas, I'll check out the Behringer and dbx units at my local store today in person and pick one to try out. I'll set it up so I can do some A/B comparisons to see how much difference I can detect with the crossover added, if any.
BTW, what's a good place to get advice on how to test for a defective speaker driver and/or crossover? My center puts my receiver (or an external amp if I use one) into protective mode for certain metal screeching sounds at higher volumes.
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Post by jman on Jun 7, 2010 21:17:07 GMT -7
A cross-over can have a big impact on the sound so choose wisely.
With the digital units like the DCX and the Driverack, the entire left/right signal will be re-digitized and then converted back to analog.
If you are going to the trouble of having a nice tube pre and amp, does it make sense to then allow the signal to be "raped" like that?
At least with an analog unit you aren't doing another AD/DA conversion.
I wrestled with the problem for awhile and finally went with the Marchand. Pricey but worth it in the long term.
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Post by ThomasW on Jun 8, 2010 6:35:46 GMT -7
BTW, what's a good place to get advice on how to test for a defective speaker driver and/or crossover? My center puts my receiver (or an external amp if I use one) into protective mode for certain metal screeching sounds at higher volumes. HT-Guide.... Things like this are always a process of elimination. |
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