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Low Frequency Equalizer Unit for Infinity RS-2b (IIB) speakers

I own a pair of Infinity RS-2b speakers. They are in very good condition. The polypropylene woofers/foam surrounds have been replaced with graphite woofers and "rubberized" surrounds. The original woofers and surrounds were failing after 15 years and the replacements were superior to what I had. The new woofers were made by a technician recommended by Infinity. Additionally, these speakers came with a low frequency equalizer which was irreparably damaged in a move. I used the speakers for years w/o the equalizer and was very impressed by the overall tonal quality of the speakers...without the equalizer.

I want to sell these speakers and have someone interested, but they also want the equalizer. Does anyone have one to sell at a reasonable price? Can you recommend an alternative solution?



asource1
6 responses Add your response
Ag insider logo xs@2x
oldhvymec
5,101 posts
 
Your MUCH better off with an aftermarket DSP or just about any other EQ if you want to know the truth.. That is a bass contour because of the bass boom, they produce. There are a dozen better ways than to use the old conture box.. I TOSSED mine 15 years ago..  I retired my RS2b, BUT they are a wonderful hybrid LS.. I worked mine a couple of times..

MagicMarky will have one.. He'll say the same thing though.. He's been around a long time..

Regards
russ69's avatar
russ69
3,360 posts
 
MagicMarksy has Control boxes listed (not sure if I can say) on that big biding site everyone uses. He also offers repair services for old boxes (I need that because my box developed a hum). 

On a side note: I currently run my woofer towers with a DBX crossover. I might be nuts but it sounds pretty good to me in my small room at reasonable volumes.  
bdp24's avatar
bdp24
9,408 posts
 
The original woofers are used in an integral servo-feedback system. Are the replacements?
russ69's avatar
russ69
3,360 posts
 
"...The original woofers are used in an integral servo-feedback system. Are the replacements?..."

According to MagicMarksy, the RS-2B does not use servo feed back. The series V does have servo feedback. The control box is a crossover and equalizer.   
Ag insider logo xs@2x
oldhvymec
5,101 posts
 
No servo in or on those units.. just like the RS1B, non servo.. I’ve seen modified versions of both, RS1B and RSIIBs.

My RSIIBs were retroed with a single HE reference 10" driver and a single HE passive, hooked to a 2496 OXO
19hz to 150 hz flat as an arrow.. PERFECT Bass..100% adjustable. I use 12Ks for all my bass work now..
It cost about 1000.00 usd total for that mod.. 
If the monitor section is in good shape, your looking at some serious SQ if you drive the monitors with valves.. just stunning..They may not have pinpoint imaging, but they are brilliant to listen to with a wider and deeper audience.

Again the factory Bass Contour is really a pile, compared to what you can use for 1/3 the money.. If you're after sound quality.. If you want the "Kit" that’s different..

Regards
bdp24's avatar
bdp24
9,408 posts
 
Oops, I WAS thinking of the RS-1b, which I at one time owned. The woofer system in the 1b is definitely a servo-feedback design, in essence a small-scale IRS. Six 8" woofers in a separate enclosure per stereo side, but no integral amplifier, an outboard one required. I am unfamiliar with the 2b.
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