tobes
Responses from tobes
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker The Stereophile graph referenced above is done at 2.83V which is equivalent to 1W/8ohms and 2W/4ohms. Obviously, whether bridged or in stereo mode it won't be effected by any insinuated current limitation.What will effect the simulated speaker loa... | |
| Doug Schroeder Method, Double ic There is certainly something going on with the Schroeder double interconnect (DI) arrangement.I'm have two sets of DIY DI's which I've made up with low cost Mogami w2534 star quad microphone cable - terminated to single xlr connectors, i.e. no 'Y'... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @ramtubes said:Im not interested in getting into a fracus with anyone on here however you have stood fast and been a little in everyones face about your Bridged Benchmarks. You did not answer my questions about your listening level or power level.... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker ramtubes said:I was surprised to see that the ATC 19 is actually 19 liters which is only 0.67 cu ft. I can’t imagine why someone wants to connect this little guy to a 370 watt bridged amplifier. The speaker only goes down to 55 Hz. The resonance c... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @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? I doesn’t, and it’s a furphy! George, I don't know why I am responding to this... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker None of what gearbuilder's copy/pasted post spiel from another thread/member. https://forum.audiogon.com/discussions/benchmark-ahb2-amplifier-what-to-expect Has anything to do with the OP's 4ohm speakers, and bridging this amp into them. Sure it'... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker If we put aside the term "damping" , because thats not what really matters, we need to inform people that an amplifier with high output impedance may cause a marked change in the frequency reponse of their speaker. Thats what really matters.Yes ad... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker They are very similar yes? what do you think will happen if another measurement was done at 4ohm in the bridged mode????? It will be far worse than the non bridged into 4ohms or 8ohms, that’s why they didn’t give the graph even though they probabl... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker With all due respect George, it's not a matter of believing what I want.Implying higher distortion in bridged mode for the AHB2 is incorrect.This has been independently verified.Not sure why you keep insisting on this?https://www.stereophile.com/c... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker I would expect it to be higher. If the rails are 60 volts then the peak volts should approach 120, say 100 Volts with losses, but the current won't support that as 25 amps are needed.The manual states:Output voltage: >80Vpp into any loadOutput... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker I would lay money on it, that if your speakers didn’t need those extra watts, you’d be saying one stereo sounds better that two bridged, regardless of the cost saving.Perhaps.But you did say that "distortion goes up" with bridged amps - however th... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker George I agree with you that with efficient low impedance speakers the OP may likely be better off with a single AHB2.However it’s worth noting that unlike most power amps, the Benchmark AHB2 does not have increasing distortion into lower impedanc... | |
| Benchmark AHB2 power amp impressions? @douglas_schroeder I'm going to make myself up a set of double interconnects to try between my Benchmark HPA4 and mono AHB2's.I was initially going to make up XLR 'Y' adapters but was put off by the extra cable breaks and all the extra connectors ... | |
| Benchmark AHB2 power amp impressions? @douglas_schroeder I've read a bit of the double interconnect thread. It seems people are experimenting by using 'Y' adapters for RCA interconnects. I presume you are using balanced connections with the Benchmark gear - have you done that by bring... | |
| Benchmark AHB2 power amp impressions? I had a Halcro MC30 class D amp for a while which I really liked. It was also very revealing and not overtly coloured. I sold that amp mainly because the highish gain wasn't a good match with the preamp I was using at the time.Hard to make a fair ... |