I ended picking up a DigiTech RDS2000 rack mount digital delay.
I checked the units low end frequency response in my shelf system. First I took SPL measurements of frequencies starting at 50Hz down to 10Hz in 5Hz increments.
Without disturbing the volume control on the preamp I inserted the RDS2000 unit and adjusted it's gain so the 50Hz tone matched in dB output as without the delay unit in line. I then confirmed all other frequencies below 50Hz and they also were the same as without the delay unit down to 10Hz.
If you are asking how did I do this comparison with a shelf system? My shelf system uses 15" drivers.
I then installed the unit before the amplifiers driving my HT tactile transducer arrangement. I use appoximately 13 ms of delay to compensate for my subwoofers 13' distance from the listening postion.
As Buzz stated earlier...
Quote:
...the effect is much more integrated and believable. |
A very large improvement in tactile transducer/subwoofer harmony.
John