Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker
My speakers can only dip to 3.8 Ohm minimum.That means the amp/s in bridged mode will see a load of 1.9ohms, not good for the bridged, but fine for a single stereo amp. Sure two AHB2s may be overkill for my speakersYes as I told you before, with a single stereo you will not only get better sound, but be able to reach with your speakers in room at 3mts, 110db!!!! Enough to blow your eardrums out. Cheers George |
tobesShow me where it states about and using the words "distortion being the same" in bridged mode into a 4ohm speaker, which means it’s seeing a 2ohm load? I doesn’t, and it’s a furphy! https://www.google.com.au/search?q=furphy&rlz=1C1CHZL_enAU820AU820&oq=furphy&aqs=chrome.... But like Roger Modjeski "ramtubes" said, it’s a great spiel to be able to sell two amps with. Even though the user will go backwards in sound quality if he didn't need the extra watts. Cheers George |
@georgehifi said: Show me where it states about and using the words "distortion being the same" in bridged mode into a 4ohm speaker, which means it’s seeing a 2ohm load?George, I don't know why I am responding to this, you clearly have trouble with reading comprehension. @gearbuilder said: The THD into 2 Ohms, 4 Ohms, 8 Ohms and no load are virtually identical.and for the 3rd time: Bottom line, the AHB2 is well suited for bridged mono operation into 4-Ohm nominal impedances and the performance is virtually identical to stereo mode except that the power is nearly 4 X higher. Dips in the speaker impedance curve are not a problem and the AHB2 drives these cleanly.George, I don't intend to reply further to this thread. You only seem interested in carrying on with unsubstantiated argument. Try to relax and enjoy the rest of your day - I'm kicking back listening to my bridged mono AHB2's :) |
I’m kicking back listening to my bridged mono AHB2’s :)And there it is, protecting ones self interest regardless of the facts for others. Yes you need bridged ones with your speakers (attached). But the OP does not, and he’ll get better sound with just 1x stereo one. ATC SM19 Lab Report " Average sensitivity (considering measurements in octave steps between 125Hz up to 16kHz) is close to 83dBSPL/2.83V/1m, a performance that undoubtedly classifies the SCM19 as a low-sensitivity loudspeaker," "SCM19’s impedance magnitude variation is quite small for frequencies above 100Hz and as an amplifier load is -for all purposes- constant. The minimum value of about 5.6 Ohm appears near 150Hz and allows us to conventionally consider the loudspeaker as an 8-Ohm load, although -typically speaking- a correct designation would be 6 Ohms. Below 100Hz, impedance magnitude significantly increases up to 50 Ohm, a behavior which could affect amplifiers with low damping factors. Also, phase behavior, ranging from +47° to -57° could be quite punishing for small amps." http://www.avmentor.net/reviews/lab/2016/atc_scm19/display/atc_scm19_impedance.jpg Cheers George |
