Rythmik Audio F12-400
₹130,254.23
12″ sealed audiophile sub
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Description
F12-400, which is a higher power version of F12-300, uses 400WRMS amplifier HX410PEQ with 2 line-in RCA, one LFE RCA, and a one-band PEQ. We recommend F12-400 as an alternative to regular F12 for customers with tight budget. Its lowest bass extension is essentially same as that of F12.
Performance & Specifications
The extension filter in F12-400 is simplied to 3 positions: Low-Music, Low-HT, and high with frequency and phase response shown below. Low-music has the lowest extension, -3 db @ 17 Hz. The response is flat and extended. For high SPL in movies, we recommend Low-HT mode with built-in rumble filter that preserves the FR to -3db@18hz while reducing potentially damaging subsonic energy.
Integration
With many subwoofers, it is difficult to get a correct and seamless integration with the main speakers because the amplifier settings are often very different to the measured response. You may set the crossover point to 80 Hz, but the actual crossover point may be anywhere between 60 and 100 Hz!
With our subwoofers the upper and lower -3 dB points are a very close match to the settings selected. If you set bass extension to 14 Hz, that is exactly what you will get. All this is possible because Direct Servo ensures a stable and flat response.
Another aspect of getting a correct integration is phase alignment. We have written a guide on how to achieve a phase aligned subwoofer. More
Output, extension and user preferences
We use high quality high excursion drivers which make it possible to achieve high output in a relatively compact enclosure. Only with Direct Servo is it possible to achieve such deep bass extension, high output and very high damping simultaneously. The effective system Q is 0.3. A lower Q factor represents a higher level of damping, indicating control of the cone. A typical sealed subwoofer has a Q of 0.9 and then equalized to Q of 0.7 by DSP or other equalization means. However, that does not alter the native Q value of those subs. Only our direct servo subs achives a native Q value of 0.3 with close-loop servo feedback control.
Specifications
Driver | 12″ high excursion with custom sensing coil DS1204 |
Driver materials | Black only anodized aluminum with rubber surround |
Cast aluminum basket | |
Aluminum flux de-modulation shorting rings | |
Amplifier | 400WRMS class D Hypex module-based patented servo controlled |
Input Impedance | 33kohm for RCA inputs; 10kohm for mini-XLR inputs |
Dimensions | 15-3/4″(W) x 15-3/4″ (H )x 17″(D) – (18-1/2″ D with grille) |
Shipping Weight | 68 lbs |
Frequency Response | 14 – 100 Hz (-3 dB @ 17Hz) with LINE input |
14 – 200 Hz (-3 dB @ 17 Hz) with LFE IN | |
Crossover slope | Selectable 12 or 24 dB / octave |
Crossover range (Low pass) | 50 – 100 Hz (100hz to 200hz range is not usable for this sub) |
Rumble Filter (High pass ) | 17 Hz 18 dB / octave built-in for Low-HT mode |
Phase response | 90 degrees phase shift at 20 Hz |
Phase adjustment | 0 – 180 degrees continuously variable (6ms max delay adjustment) |
Bass damping factor settings | Q=0.5 for Low-music mode |
Finishes | Available in black matte vinyl or black oak vinyl |
Warranty | 5 years warranty on driver and 3 years on electronics |
45 day satisfaction guarantee |
Additional information
Weight | 31 kg |
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