Yes, that is correct connection for 4 drivers. Another variant is 3 in series and 1 (driver A) parallel to them.
It is not that simple. Enclosure volume (and port dimensions) depends on the number of mounted drivers: more drivers - bigger volume. Port dimensions (whole enclosure, actually) should be re-calculated according to the number of drivers. I recommend HornResp software.
I used MJ King modified MathCad spreadsheet. Very accurate. But I dont know if they are available now
Hi jean-paul.
Will it sound good? Or will the amp break? I am trying different things.
Have you ever broken an amp with 1 ohm or 2 ohm speakers?
Hi Zoran.
At this point, I do not see the need to increase the port size or box volume.
Hi Sonce.
In my experience, the sound quality was better when using 4 parallel 2 ohm than using 4 series-parallel 8 ohm.
Have you tried it?
It will be 6 dB louder only - which might be experienced as "better quality".
2 ohm load is not amplifier-friendly.
"Into the abyss I'll fall, the eye of Horus
Into the eyes of the night, watching me go."
Just having fun hearing Power Slave
I'll typically listen to that whole album in order
The side mounted woofers 90 degree off axis roll off the highend.
So bass should be good, like a natural crossover.
Your basically making a quasi .5 speaker.
With a simple 1st order series crossover the impedance can be made friendly.
I dont think the amplifier is having issues at 2 ohm
Because the actual power for these mark audios for listening levels is not very high.
I like the concept of off axis woofers, because the filters can be extremely simple full range.
1 Coil , 1 cap = done.
3 matching drivers is one way to do it. For better bass 2x 6.5" or 8" could be used.
Again mounted off axis, the filters become very simple.
The forward driver being high passed would improve power handling, not having to do bass.
I think the combing people are expecting isnt happening as expected, off axis changes things.
top end phase issues are rolled off , off axis.
Into the eyes of the night, watching me go."
Just having fun hearing Power Slave
I'll typically listen to that whole album in order
The side mounted woofers 90 degree off axis roll off the highend.
So bass should be good, like a natural crossover.
Your basically making a quasi .5 speaker.
With a simple 1st order series crossover the impedance can be made friendly.
I dont think the amplifier is having issues at 2 ohm
Because the actual power for these mark audios for listening levels is not very high.
I like the concept of off axis woofers, because the filters can be extremely simple full range.
1 Coil , 1 cap = done.
3 matching drivers is one way to do it. For better bass 2x 6.5" or 8" could be used.
Again mounted off axis, the filters become very simple.
The forward driver being high passed would improve power handling, not having to do bass.
I think the combing people are expecting isnt happening as expected, off axis changes things.
top end phase issues are rolled off , off axis.
Hi Sonce.
Is it possible that your amp just does not support 2 ohm?
My class D amp (NuPrime STA9) sounds better with a 2 ohm load than an 8 ohm load, and my tube amp (300B parallel-single A-class AMP) sounds better with a 4 ohm speaker on the 8 ohm output and a 2 ohm speaker on the 4 ohm output.
Of course, the volume is adjusted for impedance. I'd feel a 6dB to 9dB difference in sound pressure between 8 ohm and 2 ohm.
People design their own amps and many get caught in the distortion game.
A 4 ohm load will cause a lot of rise in distortion, at least on paper or in spec.
A 2 ohm load would be very high distortion regardless. And a very difficult load with 1 to 1.5 ohm dips.
For high power levels, the power supply and output devices get a little tortured at 2 ohms.
Nothing I would do. Low power levels, for 3 to 12 watts would hope the amp can actually provide
50 watts continuous from the power supply. With switch mode power supply the definition of " continuous" gets veg it seems.
Again listening levels for these speakers isn't a very high voltage, just the power supply and output devices
are going to see heavy current levels.
As mentioned even a amp that is not rated for 2 ohms could do it, then again it depends on actual power levels
and how much power supply it has. Excluding Class D and all the wonderful shut off circuits they have.
Me blasting power slave with numerous class D amps. I would shut them down half way through the album.
Again it really depends.
A 4 ohm load will cause a lot of rise in distortion, at least on paper or in spec.
A 2 ohm load would be very high distortion regardless. And a very difficult load with 1 to 1.5 ohm dips.
For high power levels, the power supply and output devices get a little tortured at 2 ohms.
Nothing I would do. Low power levels, for 3 to 12 watts would hope the amp can actually provide
50 watts continuous from the power supply. With switch mode power supply the definition of " continuous" gets veg it seems.
Again listening levels for these speakers isn't a very high voltage, just the power supply and output devices
are going to see heavy current levels.
As mentioned even a amp that is not rated for 2 ohms could do it, then again it depends on actual power levels
and how much power supply it has. Excluding Class D and all the wonderful shut off circuits they have.
Me blasting power slave with numerous class D amps. I would shut them down half way through the album.
Again it really depends.
Low impedance loads require the amplifier to deliver current. Exactly a difficult parameter for many. Tube amplifiers are generally wimpy in that aspect, class D are probably best for 2 Ohm but again: why?
Learn Ohms Law to understand. Ears are the worst instruments to judge current (or lack of current). You may possibly like the distortion caused by a starved amplifier. One sees the strangest things in the “ears only” camp today often with YouTube videos and nice graphs but often with inherent faults.
https://en.m.wikipedia.org/wiki/Ohm's_law
Learn Ohms Law to understand. Ears are the worst instruments to judge current (or lack of current). You may possibly like the distortion caused by a starved amplifier. One sees the strangest things in the “ears only” camp today often with YouTube videos and nice graphs but often with inherent faults.
https://en.m.wikipedia.org/wiki/Ohm's_law
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Hi folks, let's not make judgments based on theory alone without actually trying it out.
Have you ever played a 2 ohm speaker?
I would like to refer to your experiences.
My sound preferences are subjective and I judge them by listening with my ears.
Do you judge your sound preferences by a measuring device?
Have you ever played a 2 ohm speaker?
I would like to refer to your experiences.
My sound preferences are subjective and I judge them by listening with my ears.
Do you judge your sound preferences by a measuring device?
Can I go one better (quite literally) and cite the Apogee Scintilla.
1ohm impedance. Few amplifiers then or now could / can drive it. Many died. Of those that didn't, only big Krells and McIntosh types with 2ohm output taps were reliably good. A few current class D could probably do it, but not many.
1ohm impedance. Few amplifiers then or now could / can drive it. Many died. Of those that didn't, only big Krells and McIntosh types with 2ohm output taps were reliably good. A few current class D could probably do it, but not many.
Any amplifier can work at 2 ohms, but at low volume only.
Amplifiers which could work continuously at their maximum at 2 ohms are rare. I have several professional amplifiers which work at 2 ohms flawlessly, but I don't recommend that for hi-fi amplifiers.
I didn't comment on perceived sound quality, but only on the amplifier's health and long life.
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Let’s not make judgements based on trying out without following basic theory. That is assuming things always work out at random. They don’t.
Of course you are free to measure with ears but that does not take away that physics always apply.
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My friend is running service business for more than 30 years. Every day someone is bringing to him broken amplifier, which on the backyard party yesterday was connected to 2 ohms load (two 4-ohms loudspeakers in parallel, per channel).
Jean-Paul,
The MA CHP-90 drivers are Euro 147.74/pair at one of the European online shops; the speaker here is using 3 pairs, so that is Euro 440+ in drivers.
Would you consider these as "cheap units"?
Maybe they are not the cheapest units but they seem good quality units worth their money?! Never had them. However the sum of things so the costs of a pair of speakers is cheap yes. I expressed poorly. 440 Euro and some material means about 600 … 700 a pair?! That is a bargain. But irrelevant in the meant context:
“What is the purpose of using affordable units but make them a 1 or 2 Ohm load and then have the need for an expensive amplifier that can let nails glow?”
Personally I have had no trouble finding good (cheap or expensive) electronics but finding good loudspeakers for an acceptable price always was difficult.
“What is the purpose of using affordable units but make them a 1 or 2 Ohm load and then have the need for an expensive amplifier that can let nails glow?”
Personally I have had no trouble finding good (cheap or expensive) electronics but finding good loudspeakers for an acceptable price always was difficult.
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(folks, let's not make judgments based on theory alone without actually trying it out.
Have you ever played a 2 ohm speaker?
I would like to refer to your experiences…)
First of all my RESPECT to Nandappe for having an 💡 idea and having the Guts to spend some $$$ and try it out!
Not just “ model it”
And also, that he is pretty happy 😃 with the Results, And that he has amp(s) that will drive them happily!!!
My old Martin Logan panels were rated at 4 ohm, which I doubt, as I’ve had the circuit protection lights 💡 come on at 40+% volume on my 200 watt MacIntosh amp, on a song on Dire Straits’ Love Over Gold Album!!
( The sound from Electrostatic panels is pretty special and addictive and the Resistance is just something you live with…)
My amp runs cooler on my 8 ohm, 8 inchers, which I am happier about… however, the cost of 6 Mark Audio drivers is Significantly less than a lot of Full Range drivers, and could well be a cheaper alternative to great sound in a Moderate sized box!!! 😃
Have you ever played a 2 ohm speaker?
I would like to refer to your experiences…)
First of all my RESPECT to Nandappe for having an 💡 idea and having the Guts to spend some $$$ and try it out!
Not just “ model it”
And also, that he is pretty happy 😃 with the Results, And that he has amp(s) that will drive them happily!!!
My old Martin Logan panels were rated at 4 ohm, which I doubt, as I’ve had the circuit protection lights 💡 come on at 40+% volume on my 200 watt MacIntosh amp, on a song on Dire Straits’ Love Over Gold Album!!
( The sound from Electrostatic panels is pretty special and addictive and the Resistance is just something you live with…)
My amp runs cooler on my 8 ohm, 8 inchers, which I am happier about… however, the cost of 6 Mark Audio drivers is Significantly less than a lot of Full Range drivers, and could well be a cheaper alternative to great sound in a Moderate sized box!!! 😃
Thank you all for your experiences.
In my case, I only produce about 100dB at max, so a 2 ohm load is probably not a problem.
Today I'm going to try a 1.2 ohm speaker with a 6.7USD Bluetooth amp base.
I don't know if it will be accurate, but I will also measure the max volume with a low cost sound level meter.
In my case, I only produce about 100dB at max, so a 2 ohm load is probably not a problem.
Today I'm going to try a 1.2 ohm speaker with a 6.7USD Bluetooth amp base.
I don't know if it will be accurate, but I will also measure the max volume with a low cost sound level meter.
Happiness is in the hands of the owner. You enjoy your work then great. There is no law that will give happiness.