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tobes

Responses from tobes

People That Have Upgraded From Harbeth 30.1s....
I owned the M30.1's for 6 years and sold them after comparing to the similar sized ATC SCM19 mk2.The ATC has a more neutral and dynamic type of sound, while still having wonderfully natural mids and highs. The SCM19's bass range is significantly m... 
ATC users
I have no experience with the ATC amps but have owned the SCM19's for the past 3-4 months - great speakers, and I much prefer them to my previous Harbeth m30.1's.Initially I was using a single Benchmark AHB2 (100W/8ohms) - which drove the 19's ver... 
Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker
ramtubes319 posts12-07-2018 4:24am"The 29 amps will only be supplied by the amplifier if the load resistance is low and the voltage is high enough to produce that current. Perhaps its the order of things. Voltage first, then resistance then figure... 
Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker
The misinformation in this thread from an individual who should know better is a little disturbing. The motive escapes me, but it appears to be deliberately malevolent. From John Atkinson’s measurement comments:"Commendably, the frequency response... 
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...