RF-1 Rumble & Subsonic Filter (Demo)
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RF-1 Rumble & Subsonic Filter (Demo)

$144.95 $179.95
(You save $35.00 )
 
Availability: Discontinued
In Stock An In Stock item is available to ship normally within 24 business hours.
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SKU:
KABRUMBLED
UPC:
KABRUMBLED

Save 20% on this Demo RF-1 Rumble & Subsonic Filter! Only one available at this price!

The KAB RF-1 is a transparent, rumble eliminator/subsonic filter. It uses a transparent low-pass filter to supress subsonic energy, and a unique, active-cancellation circuit that supresses vertical rumble.

This easy to install device is designed to stop that weird, slow movement you may see your large speaker cones doing. That is called rumble.

Rumble is caused by subsonic sound. Sometimes, low frequencies are actually cut into the record groove when a master disc is made, but typically the root cause of these inaudibly low frequencies is feedback exciting the natural stylus/arm resonance. This creates low frequencies between 7 and 12 Hertz.

If you can see a slow, in-and-out motion of your woofers, the KAB RF-1 can eliminate it.

The unique, active vertical cancellation circuit "monos" the low frequencies below 140 Hz. This suppresses vertical rumble and the "wump wump" of warps.

Features

Gold Teflon RCA Inputs and Outputs
Active Vertical Cancellation
Dual Voltage Regulation
Wima Propylene Caps
Metal FIlm Resistors
Star Grounding
Steel Chassi to ward off effects of stray magnetic fields
Hi Current Power Pack

Technical Specifications

-3db @ 20 Hz 18 db/octave
Unique Active Vertical Cancellation below 140 Hz
Dual Voltage Regulation
Output 5 Vrms
THD <0.05%
Noise -95dB
Dimensions 4.5" x 3" x 1.25"
Shipping Weight 4 Lbs
Power: 24VDC,0.75A Meanwell GE18I24-P1J

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