why this speaker's impedance is 2.7? not 2 or 4: the impedance is 2.7,but most amp impedance is 2 or4,how could i connect it with a amp?
275906
The speaker dictates the power your amp puts out not the other way around. The speaker draws the power. So just wire it normal and all will be fine.
275907
If you do not already know the answer to that question, then please immediately put your equipment back in the box and run to your local stereo installer
1762834
I ran a line level output from my receiver to a Crown 440W amp - that went into the Zone input of this unit. Then the unit will route the amplified signal to any speaker it's attached to - you select speaker pairs with the unit.I did not check impedances but the Crown amp will power a 2 ohm, 4 ohm, or 8 ohm load and the various speakers in my house are 4 ohms or 8 ohmseverything works so I am guessing this auto-matches.
1201371
I use the 4 ohm tap because it sounds better. The ls50 impedance curve shows that at lower frequencies the speaker dips into the 4 ohm range. Try both taps on your tube amp and use what you like.
2076905
I don't own this but am considering this. The manual shows an audio out so you could go into an amp with that. The speakers are 3 ohms and have a jack on the side that would allow you to power a speaker, if you could get or make the same connector that they have. The issue will be the 3 ohm 7 watt rating. typically speakers are either 4 ohms in smaller units or 8 ohms in larger speakers. You will see less volume with speakers with a higher impedence with 8 ohm speakers being only about 1/2 as loud as the 3 ohm speakers that are supplied with the unit. There could be other problems with impedence mis-match but I haven't tried it to know.
1160166
This amplifier is not stable at 2 ohms. it is limited to 4 ohm loads or higher.
1297507
I would say refer to the instruction manual as well. I found this interesting paragraph in the manual to a circa 1998 Marantz receiver that I have whose speaker outputs are labeled "8 ohms": Note on loudspeaker impedance: The power ratings specified for this Marantz receiver are obtained using fixed value test load impedances. However, the actual impedance of a loudspeaker system will vary with frequency, deviating from the nominal rating. This Marantz amplifier will drive any modern loudspeaker system with a rated impedance of 4 ohms or higher. A few newer loudspeakers feature impedances of less than 4 ohms. The high current output capability of this Marantz receiver can provide the additional power necessary to drive such low impedance speakers. However, during extended passages of high volume, the protection circuitry may temporarily interrupt operation. If this occurs, simply reduce the volume accordingly. The protection circuitry is specially designed so that it cannot affect the sound quality during normal operation.
1506217
Most current amplifiers can handle 6 ohm speakers without problem (though power output will go up, so pay attention to that). It's 4 ohm speakers where you'll start having serious problems - you'll need an amp that explicitly states it supports high current output. Check your amp's user guide - it should have what impedance is supported.
248492
This unit is built for output impedance 4-8 Ohm. By using 2 Ohm speakers you are risking to burn unit amplifier; this is not really high end equipment. This unit has RCA output and option to attach an amplifier; that would be better way to go.
1973294
there are two channels. but channel A/B function. it says it can function down to 2 ohms. but i burnt it when i did that.it may work at 4 ohms. the lowest impedance it should have is 4 ohms. this means that u can use one 4 ohm speaker per channel, or two 8 ohm speakers in parallel per channel
458769
8 ohms single speaker. The detail says speakers. And there are two 1/4" speaker outputs on the rear. I have not tried those. Using the speakon outlet, I tried to daisy chain two 8 ohm speakers. But every few minutes the amp would go into protect. Maybe the 1/4" outputs will allow two speakers but not the speakon. I'd have returned it but this is the only mixer amp in this price range on the market. I use it for all karaoke shows. It really does crank great sound.
126743
I don't remember if this amp is rated to 2 ohms. If it's not you'll cook it not matter how many fans you put in there. To answer your power questions, 2 ohms puts out about double the power compared to 4 ohms if I'm not mistaking. Also you need to make sure the speaker can run at 2 ohms. In short if your stuff is rated at 2 ohms and the amp can go down that low then you'll be happy. If nothing is rated for 2 ohms you'll be unhappy real fast.
2139660
The question should be what are the impedances of your speakers. According to the Installation Guide "As more pairs of speakers are connected to a receiver the overall system impedance becomes lower. Ex: 2-pairs of 8-ohm speakers lowers the impedance to 4-ohms" The Niles allows impedance correction. It will handle 3 or more pairs of 8-ohm speakers protecting he receiver from low impedance loads.
1636605
The nominal impedance is 8 ohms. As a note, the impedance is 4 ohm up to ~70Hz, which it climbs up to 12 ohms at 100 Hz and soon drops back down to 4 ohms at 200 Hz, then does the slow climb to ~9 ohms around 5-6kHz, and trends slowly to 4 Ohms again for the rest of the audible range. If you're just looking to see if this speaker can work for you, don't worry about the nominal impedance. If it isn't a completely off-the-wall audio setup and you're going to be listening at below 100dB levels, you won't hear any distortion (unless you're a Labrador) and you won't cause the receiver to run too hot. The nominal impedance is 8 ohms. As a note, the impedance is 4 ohm up to ~70Hz, which it climbs up to 12 ohms at 100 Hz and soon drops back down to 4 ohms at 200 Hz, then does the slow climb to ~9 ohms around 5-6kHz, and trends slowly to 4 Ohms again for the rest of the audible range. If you're just looking to see if this speaker can work for you, don't worry about the nominal impedance. If it isn't a completely off-the-wall audio setup and you're going to be listening at below 100dB levels, you won't hear any distortion (unless you're a Labrador) and you won't cause the receiver to run too... » Read More The nominal impedance is 8 ohms. As a note, the impedance is 4 ohm up to ~70Hz, which it climbs up to 12 ohms at 100 Hz and soon drops back down to 4 ohms at 200 Hz, then does the slow climb to ~9 ohms around 5-6kHz, and trends slowly to 4 Ohms again for the rest of the audible range. If you're just looking to see if this speaker can work for you, don't worry about the nominal impedance. If it isn't a completely off-the-wall audio setup and you're going to be listening at below 100dB levels, you won't hear any distortion (unless you're a Labrador) and you won't cause the receiver to run too hot. « Show Less
2267241
Theoretically you can run as many speakers as you want as long as the impedance or OHMs do not go above 4 or below 2. How you achieve different impedance's is by how you wire the speakers, parallel (+ to + and - to - ) or series (amp + to first speaker + first speaker - to second speaker + second speaker - to amp -. if you had 2 - 4 ohm speakers wired in parallel you would have 2 ohms of resistance at the amp. same speakers wired in series would have a standing impedance of 8 ohms. I agree with Roosevelt this brand of power Amp is very clean at 4 ohms running it at 2 ohms increases the Total harmonic distortion Theoretically you can run as many speakers as you want as long as the impedance or OHMs do not go above 4 or below 2. How you achieve different impedance's is by how you wire the speakers, parallel (+ to + and - to - ) or series (amp + to first speaker + first speaker - to second speaker + second speaker - to amp -. if you had 2 - 4 ohm speakers wired in parallel you would have 2 ohms of resistance at the amp. same speakers wired in series would have a standing impedance of 8 ohms. I agree with Roosevelt this brand of power Amp is very clean at 4 ohms running it at 2 ohms increases the... » Read More Theoretically you can run as many speakers as you want as long as the impedance or OHMs do not go above 4 or below 2. How you achieve different impedance's is by how you wire the speakers, parallel (+ to + and - to - ) or series (amp + to first speaker + first speaker - to second speaker + second speaker - to amp -. if you had 2 - 4 ohm speakers wired in parallel you would have 2 ohms of resistance at the amp. same speakers wired in series would have a standing impedance of 8 ohms. I agree with Roosevelt this brand of power Amp is very clean at 4 ohms running it at 2 ohms increases the Total harmonic distortion « Show Less
141523
The receiver can easily drive 4 ohm speakers. The RMS power rating of 80W applies to 8 ohm speakers, so the power output for 4 ohms will be somewhat greater.You can change the speaker impedance from the default setting of 8 ohms to 4 ohms using the "Advanced Setup" menu as described on page 37 of the owner's manual.
132608
It's not meant to be "hooked up" into a 7.2 system. You really need to match your speakers with your receiver.if your receiver did happen to have pre-outs you take a risk. Of damage. I have a 7.2 system that I've matched speakers to receiver. It has 130w per ch. and will play loud and clear enough for our neighbors! This amp is a 2 ch amp meant to be played in a stereo system ( 2 speakers). Hope this helps
1649785
What matters is the impedance. Most Amps are 8 ohm as are speakers. When you hook multiple speakers in parallel the impedance goes down. The selector ensures that the impedance is at least 4 ohms even when as many as eight speakers are hooked in parallel (and would otherwise present 1 ohm of impedance). On my Yamaha receiver there is a switch that allows for a 4 ohm load and that is the key. You can probably run a 4 ohm load from an 8 ohm driver, it just means that more energy is dissipated in the amp than in the speakers but hopefully not so much as to do damage