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11-24-2012, 12:42 PM
|  | Registered User | | Join Date: Oct 2005 Location: nashville, tn | | Hey no worries man. It's all good. 
Liam |
11-24-2012, 02:36 PM
| | Registered User | | Join Date: Jan 2002 Location: Silicon Valley, CA, USA | | | I measured a slightly rising frequency response when set "flat". See the attached graph.
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More GAS than talent or patience.
Crappy Bassist with Expensive Gear Club #19 • Official fEARful Club #62 (15/6/1 + 15sub)
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11-24-2012, 02:43 PM
| | Registered User | | Join Date: Oct 2005 Location: nashville, tn | | Quote:
Originally Posted by chucko58  I measured a slightly rising frequency response when set "flat". See the attached graph. | Cool! Thanks for doing measurements. It would be very interesting to see what the knobs are set at to get a flat frequency response, with and without te graphic eq. If you find yourself bored with nothing else to do 
Liam |
11-24-2012, 07:21 PM
| | Registered User | | Join Date: Jan 2003 Location: Pacific Wonderland | | Quote:
Originally Posted by chucko58 I measured a slightly rising frequency response when set "flat". See the attached graph. | Yep, that's it.
From Passinwind:
Howdy,
Thought you might like a look at the response measurements I took on my BX500. Dunno if the BX1500 is substantially different, since I haven't seen the schematic for one yet. I dig the BX500 a lot though -- made a trade for a broken one and fixed it right quick.
The measurements were done with the Drive and Contour controls full left, except as noted, and the graphic EQ off.
all the best,
----Charlie http://passing-wind.com/tech/BX500_FRC_annotated.JPG
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-- Charlie Escher
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"Pass the Peas" "Soul Brother Number One" BIG CAB CLUB member #170 and proud of it!...Not so much now that I'm old and fat! Oregon Bassist's Club member #46
Last edited by DJ Bebop : 11-25-2012 at 03:23 PM.
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11-25-2012, 09:21 AM
|  | Mad showoff 7-stringer | | Join Date: Dec 1999 Location: NW suburban Chicago | | Quote:
Originally Posted by DJ Bebop Yep, that's it.
Howdy,
Thought you might like a look at the response measurements I took on my BX500. Dunno if the BX1500 is substantially different, since I haven't seen the schematic for one yet. I dig the BX500 a lot though -- made a trade for a broken one and fixed it right quick.
The measurements were done with the Drive and Contour controls full left, except as noted, and the graphic EQ off.
all the best,
----Charlie http://passing-wind.com/tech/BX500_FRC_annotated.JPG
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-- Charlie Escher | Well, how bout that... I was wondering why boosting the Bass knob didn't fill it up enough for me -- your purple plot seems to peak at 300 Hz! Wonder why Carvin would do that. Good thing they put the semiparametrics and the graphic on there!
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"Bought an SX for the he** of it" Club #273
Wishbass club #1235
Bassists Who Drive Manual Club #85 Quote:
Originally Posted by Rip Topaz Dude this is the Wishbass Club. No reason needed!!! | |
11-25-2012, 12:29 PM
| | Registered User | | Join Date: Oct 2005 Location: nashville, tn | | Hmmm interesting. I like it flat. But now I'll experiment. Who knows, maybe I'll like it even better!
Cheers,
Liam |
11-25-2012, 03:09 PM
| | Registered User | | Join Date: Jan 2003 Location: Pacific Wonderland | | Quote:
Originally Posted by eli Well, how bout that... I was wondering why boosting the Bass knob didn't fill it up enough for me -- your purple plot seems to peak at 300 Hz! Wonder why Carvin would do that. Good thing they put the semiparametrics and the graphic on there! | Quote:
Originally Posted by DJ Bebop Yep, that's it.
From Passinwind :
Howdy,
Thought you might like a look at the response measurements I took on my BX500. Dunno if the BX1500 is substantially different, since I haven't seen the schematic for one yet. I dig the BX500 a lot though -- made a trade for a broken one and fixed it right quick.
The measurements were done with the Drive and Contour controls full left, except as noted, and the graphic EQ off.
all the best,
----Charlie http://passing-wind.com/tech/BX500_FRC_annotated.JPG
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-- Charlie Escher | Thank Charlie Escher AKA Passinwind for that!
I think what he's showing is different ways to flattening the amp response since 12 noon is not it.
So, the different plots with different knob settings shows what can bring that amp closer to "flat"
__________________
"Pass the Peas" "Soul Brother Number One" BIG CAB CLUB member #170 and proud of it!...Not so much now that I'm old and fat! Oregon Bassist's Club member #46
Last edited by DJ Bebop : 11-25-2012 at 03:22 PM.
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11-25-2012, 09:55 PM
|  | Slush Machine Detritus | | Join Date: Feb 2004 Location: Knox, Knox, who's there? | | | I have been using a BX500 that is mounted in an old PB100-10 combo cabinet, with the stock PB10 replaced with an Eminence CH2010 neo. I may be the only person in the world with this combination! I'm playing a theatre show with this amp. I'm running a DI line out to the house, and just doing low-volume stage monitoring with it. I'm not getting above 9 or 10 o'clock on the master, and generally running the gain around noon or 1 o'clock. I'm playing the show with an SX short scale jazz with D'Addario Chromes and Bart pickups.
The amp is very loud, present, and punchy. Definitely the sound I need for this show. Thanks, Carvin, for the BX500!
Last edited by MichaelVee : 11-26-2012 at 05:23 PM.
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11-25-2012, 10:12 PM
| | Registered User | | Join Date: Jan 2003 Location: Pacific Wonderland | | Quote:
Originally Posted by MichaelVee I have been using a BX500 that is mounted in an old PB110 combo cabinet, with the stock PB10 replaced with an Eminence CH2010 neo. I may be the only person in the world with this combination! I'm playing a theatre show with this amp. I'm running a DI line out to the house, and just doing low-volume stage monitoring with it. I'm not getting above 9 or 10 o'clock on the master, and generally running the gain around noon or 1 o'clock. I'm playing the show with an SX short scale jazz with D'Addario Chromes and Bart pickups.
The amp is very loud, present, and punchy. Definitely the sound I need for this show. Thanks, Carvin, for the BX500! | I thought about doing that with my PB100-10
__________________
"Pass the Peas" "Soul Brother Number One" BIG CAB CLUB member #170 and proud of it!...Not so much now that I'm old and fat! Oregon Bassist's Club member #46
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11-25-2012, 10:14 PM
| | Registered User | | Join Date: Feb 2008 Location: Chapmanville, WV | | | I have an older bx600 and i works perfectly> |
11-26-2012, 07:23 AM
| | Registered User | | Join Date: Jan 2002 Location: Silicon Valley, CA, USA | | Quote:
Originally Posted by liam_g Cool! Thanks for doing measurements. It would be very interesting to see what the knobs are set at to get a flat frequency response, with and without te graphic eq. If you find yourself bored with nothing else to do
Liam | You mean like the attached? This is with the bass at +3 and the contour at 11 o'clock.
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More GAS than talent or patience.
Crappy Bassist with Expensive Gear Club #19 • Official fEARful Club #62 (15/6/1 + 15sub)
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11-26-2012, 08:27 AM
| | Registered User | | Join Date: Oct 2005 Location: nashville, tn | | | Cool, thanks!
Liam |
11-26-2012, 08:57 AM
| | Mad showoff 7-stringer | | Join Date: Dec 1999 Location: NW suburban Chicago | | | The fact that the BX500 is the same shell as the older PB amp heads makes for many interesting possibilities! Mine was in a PB-200 cab with a 4ohm 600W Carvin Neo spk. The cab couldn't push the full 500 watts, but it worked great for rehearsals and not-huge gigs.
Not that way now (several surgeries have intervened for various reasons) but will likely return to that config soon as I am using neither component for anything at the moment, and I have a new band in whose rehearsal space I would like to install an amp.
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"Bought an SX for the he** of it" Club #273
Wishbass club #1235
Bassists Who Drive Manual Club #85 Quote:
Originally Posted by Rip Topaz Dude this is the Wishbass Club. No reason needed!!! |
Last edited by eli : 11-26-2012 at 09:05 AM.
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11-26-2012, 11:12 AM
|  | Registered User | | Join Date: Apr 2004 Location: Albany, NY | | | Set flat it seems kinda thin if you do try cranking the bass for a bit. With the bass up to say 3pm, it is superfat and and you can really feel it. Not the best mix for a band maybe, but sweet none the less.
I guess it is all relative and that is the main reason why it is recommended to cut before you boost. |
11-27-2012, 01:33 PM
|  | Dr. Hook | | Join Date: Dec 2007 Location: Lehigh Valley, Pennsylvania US | | | 2 ohm operation
I'm interested in which of you BX500 users routinely operate the amp at 2 ohms. Have you experienced any issues or reliability problems? I appreciate your feedback before I pull on trigger on one. Thanks. |
11-29-2012, 12:12 PM
| | Dr. Hook | | Join Date: Dec 2007 Location: Lehigh Valley, Pennsylvania US | | | 2 ohm operation
No one?
I did a search before my first post and found some questions about reliability, but didn't really see any good answers from personal experience about 2 ohm operation. Maybe I missed some? |
11-29-2012, 12:39 PM
|  | Smile more, ok?
Staff Reviewer; Bass Gear Magazine Moderator | | Join Date: May 2004 Location: Columbia MO | | | I've asked this several times, and only got one or two answers.
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11-29-2012, 01:00 PM
| | Registered User | | Join Date: Apr 2004 Location: Albany, NY | | Quote:
Originally Posted by timber22 No one?
I did a search before my first post and found some questions about reliability, but didn't really see any good answers from personal experience about 2 ohm operation. Maybe I missed some? | I ran mine at 2.67 ohms for a full gig (3 sets cover band) with no PA support. I used my BX500 combo (BR515N) amp which is 8 ohms, and then a  Dr. Bass 115LF 4 ohm cab below. I didn't notice any issues at all. So, I can vouch for 2.67 ohms.  |
11-29-2012, 01:41 PM
| | Registered User | | Join Date: Jan 2003 Location: Pacific Wonderland | | | 2.67 here to!
__________________
"Pass the Peas" "Soul Brother Number One" BIG CAB CLUB member #170 and proud of it!...Not so much now that I'm old and fat! Oregon Bassist's Club member #46
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11-29-2012, 03:48 PM
| | Dr. Hook | | Join Date: Dec 2007 Location: Lehigh Valley, Pennsylvania US | | | Lync and Bebop .. thanks for the info. That helps. If anyone else has 2 ohm experience, I'd appreciate it, and maybe chef would also. | | Thread Tools | Search this Thread | | | | 
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