I know - strange magic! It’s not even being relieved of its preamp powering duties.
Were you quite happy with your 110 driving them? These would have been earlier models I guess, which I’m told are harder to drive.
Moderator: Staff
I know - strange magic! It’s not even being relieved of its preamp powering duties.
What’s often said is that if a speakers impedance drops to 2 Ohms, then it would be hard(er) to drive, compared to a speaker which drops to 6 Ohms?
Maybe. But difficult phase angles (capacitive and inductive loads) can present more trouble than a low resistive load.Spannko wrote: ↑2020-03-04 10:39What’s often said is that if a speakers impedance drops to 2 Ohms, then it would be hard(er) to drive, compared to a speaker which drops to 6 Ohms?
Are you suggesting that it’s not a “hard to drive” problem, but “a poor amplifier cannot deliver power linearly down to 2 Ohms” kind of problem. Or something else?
I think it's a very crude figure. As mentioned, what happens when the load isn't primarily resistive is more interesting. Then again, those numbers don't say anything about whether the amplifier sounds musical or even powerful.
Excellent, thank you. I can’t say I understand it all though. Once I get beyond Ohms law and into the realms of phase angles, and such like, I’m totally flummoxed! There’s obviously much more to audio amplifier design than most engineers appreciate. To give an example, reading about rectifier diode selection on the diy HiFi forums, the consensus is that diodes don’t have a characteristic sound quality, and woe betide anyone who suggests otherwise!lejonklou wrote: ↑2020-03-04 14:04I think it's a very crude figure. As mentioned, what happens when the load isn't primarily resistive is more interesting. Then again, those numbers don't say anything about whether the amplifier sounds musical or even powerful.
For instance, if the amplifier changes its sound character while the load falls, the power will not feel effortless.
Someone outside the forum wanted to hear double bass.
No, it's also pre-Cirkus with steel sub-chassis. I sold the Keel several months ago.
Can you articulate what you're hearing?
To me, the “sound” of your RadLP12 is quite a big improvement over the ValLP12, and I can imagine that the VLP12 could get a bit tiresome on anything but the best sounding albums. However, buried in all the noise, there appears to be a degree of musicality in the VLP12 which isn’t present to the same degree in the RadLP12. For example, it feels easier to hear the tune played on guitars deep in the mix, whereas on the RadLP12 the guitars are easily audible but not quite so tuneful. I feel that the guitars are just a little bit more integrated with the rest of the music (on the VLP12) resulting in what appears to be a (very slightly) tighter musical performance compared to the RadLP12.
Just the NAC12
You can’t use the double power/half load to anything. Any amplifier can do that.
Yep
Hi Charlie1,
Radical LP12 is much more musical ...Charlie1 wrote: ↑2020-03-04 18:08And one from earlier today:
Valhalla LP12: https://www.dropbox.com/s/aqhjxciku10w7 ... D.MOV?dl=0
Radikal LP12: https://www.dropbox.com/s/dyj429yhzr78m ... D.MOV?dl=0
I'd be updating it about 3 times a day!! ;)
Thanks - it's a bit better today (warmed up) but the fundamentals remain as per the clips. Glad you like it. I wish I was like you and most folks that hear only benefits to the newer components.
Thanks Linntek. As usual, “A little knowledge is a dangerous thing”, and there’s clearly so much I don’t understand, but I must admit, curiosity often gets the better of me and lures me not areas I really should avoid!Linntek wrote: ↑2020-03-05 17:34You can’t use the double power/half load to anything. Any amplifier can do that.
Tundra: 35 watts 8 ohm and 70 watts 4 ohm. Nothing wrong with these specs. All true.
But in theory the clipping power could be 60 watts 8 ohm and 70 watts 4 ohm. These numbers might cause some concern.
Difficult load depends on the frequency. If above 1-2 kHz the voltage isn’t that high(current and power will be low). If we talk 2 ohm at 50-200 hz it will probably be a difficult load. Difficult loads often appears at crossover frequencies. Difficult phase angles does not require more current from the amplifier. The current will be the same as if it was pure resistive. Voltage and current will just be out of phase, more heat dissipated.