kijanki
Responses from kijanki
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker It is also possible that 480W limitation comes from power dissipation of the output or power supply (29A max current seems adequate) and is not relevant, unless one listens to continuous sine waves. Music has very low average power while peaks mi... | |
| No one actually knows how to lculate what speaker cable they need Let me examine one statement made before by b4icu:The DF is actually the way the Amp. is getting control over the speaker's coil. A coil, especially a moving one in a magnetic field, generates an electric current that is equal to the one made it m... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker jon_5912, When you bridge 33.3V into 10ohm speaker you'll get 66.6V and 6.66A making 400W. Bridging quadruples power (since it doubles the voltage). | |
| Dumb file size question. Twice the rate and 50% more bits makes 3x more data. 3x300MB=900MB, not far off from 1.26GB | |
| Bridged Mono eziggy, Power is proportional to output voltage squared. Since output voltage doubles in bridged configuration power will quadruple (400watt@8ohm). Current also becomes doubled and amp might not be able to deliver it. That's why 4 ohm bridged is... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker 40 amps of current is needed to produce 40 volts peak (100 watts RMS) across a 1 ohm dip in impedance. If this impedance is reactive the amplifier will be really unhappy.I don't understand it. 40V across 1 ohm (or 40amps thru 1 ohm) would make 16... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker Here you go: Page 26 "performance plots" fig. 1, 2, 3https://cdn.shopify.com/s/files/1/0321/7609/files/AHB2_Manual_-_Rev_G.pdf?6581480924542235084These plots show almost identical THD at 4 ohm, 8 ohm and bridged 8 ohm max power. As for damping fac... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker Quote from instruction manual:The AHB2 power amplifier can be run in two modes: STEREO mode - Two output channels MONO mode - One output channel in bridged mono The bridged MONO mode will deliver almost 4 times as much power into an 8-Ohm s... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker I have AHB2, few month old. In instruction manual rev G p.22 it states: Output Current: 29 A peak into 1 Ohm, both channels driven The same is on their website (it used to be 18A). Perhaps they improved power supply (higher limit). | |
| AirPlay streaming question please Ian, one problem you might encounter with Airport Express is slow DAC syncing. Computers transfers just plain data to AE and the clock for this data on Toslink out, is created first time by AE. During gaps in the music there is no clock and DAC... | |
| Looking for fado music that is well recorded. If you like Portuguese Guitar then get this record (samples on Amazon):https://www.amazon.com/Guitarra-Portuguesa-Carlos-Paredes/dp/B001232MGY/ref=sr_1_2?ie=UTF8&qid=1... | |
| Looking for fado music that is well recorded. Fado classics, like anything by great Amalia Rodriquez will be poor sound quality. I like Ricardo Ribeiro (try Porta de Coracao) and Antonio Zambujo. Both are great, but Ribeiro is considered one of the finest fado singers of our generation.http... | |
| highest damping factor amp Back EMF causes current flow in opposite direction to one that would cause motion of the membrane in given direction. This current will produce force moving membrane in opposite direction - braking movement completely, like shorted motor. Except... | |
| Ohm alone, on the phones. It can only make it worse IMHO. If the hiss comes from the output stages then lower ohm ratings will make it worse. Hiss coming from the input stages will appear the same, since volume control won't change signal to noise ratio. | |
| ... how important is Damping factor in determining what amp to buy When a signal is sent to a speaker to play a note, the cone vibrates. When the signal stops, the cone is still moving back and forth. and is an electric motor. This movement sends the electrical signal back to the amp, and a highly damped amp will... |