Can you hook up 4 ohm speakers to a 8 ohm amp

OctoberMan, what kind of amp is it? Make and model, if possible. Men die for what they want to be true, for what some terror in their hearts tells them is not true. I wanted to look and see if I could find out anything useful about the amp. A lot of combo amps are actually capable of running down to 4 ohms, but I don't see any indication that this is one of them.


  1. Connecting 4-ohm Speakers to an 8-ohm Receiver | Audioholics.
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First, a primer on impedance as it applies to amplifiers. Impedance is just what it sounds like: Too much impedance, and the amp will provide very little current, and therefore very little power. As was mentioned above, that won't hurt a solid state amp, it will just lower the volume.


  1. 4-ohm Speakers Should Typically Be Mated with Higher Power Amplifiers?
  2. 4 ohm speaker + 8 ohm amp.
  3. 4 ohm speakers on 8 ohm receiver? - Speakers - Audio.
  4. 4 ohm speakers on 8 ohm receiver?.
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That can be a good thing, for practice amps and the like. If the impedance is too low, then the load the speaker, in this case will draw too much current, more than the amp's output transistors can safely produce, things will heat up, and the magic smoke will escape from the amp. In this case, I'd assume that 4 ohms is too low an impedance for this amp. So no, you should not connect the 4 ohm speaker to the amp. At 20 watts, the amp isn't going to hurt the speaker, but it could very well hurt the amp.

As HeimBrent said, you could put a resistor in series, but that would soak up half your power. Better would be to get another 4 ohm speaker, and hook them up in series for an 8 ohm load. Thanks for the great article It was very helpful But still I have some doubs about my system. At the moment I have connected an 2 main 4 ohm speakers and and center 8 ohm. Is this configuration is sav the for my air and speakers.

What do you think about my system? The speakers are perfectly fine and sound great. The manual says the speakers rate at 3 ohms and the sub woofer at 1. Can I use the speakers on a regular receiver rated at 8 ohms?


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Be a shame to trash a perfectly good 5. The Focal P30DB subwoofer has twin coils and depending how you wire it you can select 8ohm, 4ohm or 2 ohm. The system is rated at 1 ohm impedance. What are some speakers that you would recommend to add on? I am looking at BOSE Thanks for any help. I thought I had this worked out, but am now second guessing myself. If I have two 6-ohm speakers connected in series, and I have 4-ohm, 8-ohm, and ohm outputs on my amplifier, which of those should I use? Thanks for your help.

I need to replace the 6-ohm speaker in my Monsoon MM subwoofer. Is it ok to replace it with a 4-ohm speaker? Hello , I just bought a 5. I also bought a Denon avr-x receiver. My question is , is that enough power to push those speakers , and the speakers are rated at 4ohms , the receiver can be set to , 8,6,4 ohms … which setting should I leave it at?

Clint Deboer — Br. My secondary question is will this be a perfect amount to push these speakers appropriately? For Instance a Parasound 5-Ch THX Ultra2 Certified Amplifier Stats are Watts rms per Ch into 8 Ohms all channels driven — W rms per ch into 4 Ohms all channels driven It seems that most of the speakers fall into a perfect medium range except the Motion 4 surrounds that Max out W should this be a concern or is it negligible?

Since the 2 Mains are at 6 Ohms I add between the 8 Ohm W and the 4 Ohm W W to obtain the 6 Ohm wattage — the watts between 8 Ohm and 4 Ohm Since there is 60 watts between and I simply add by 10 to come up with the in between 6 Ohm wattage which would be Watts 6 Ohms.

I have searched alot of sites trying to understand the ohms and good and bad etc. Can i connect these? If yes, please tell how. I was running with RX-A set at 6ohms and 5. Thanks for your advise Regards. Hi have just bought Old Sony speakers which says that they have a 4 ohm impendance at 30 watts.

However both speakers have an impedance of 6 ohm. Just a question on parallel and series. The resistance actually varies with frequency and output. The receiver gives me a choice of setting it to 6 or 8ohms… What should i set the ohms to?

4 ohm speaker + 8 ohm amp

We always recommend setting the AV receiver to the minimal ohm rating. All Speakers are 3 ohms and Passive Sub-woofer of 3 ohms. Which AV receiver would you suggest? Can I hook up these speakers to 6 ohms receiver as I see most of the latest receivers are rated 6 Ohms only. When I check the surround speaker for its resistance it showed 5 ohms in the Multimeter. So can I look out for 4 ohms receiver for the safer side?

Is any available for 4 ohms in the market. But am not good at these. One of my watts amp mini sound system is not working. So I planned my 6-ohms speakers to connect with watts amp. Is that good to connect with these combination? Can I add a 4 Ohm resister to each speaker to reach the minimum Ohms requirement for this unit 6 — 16 Ohms?

Would that be better? They would then have 6 ohms resistance. I would also run the passive subwoofer in series with the center speaker to get 6 ohms. A music Hall a Need your suggestion on this please. I have two 4ohm bass speakers, one 8 ohm mid, 8ohm tweeter and 3-way crossover.

Tell me how to connect those to have total 6 or 8 ohm? The main front tower speaker are 6 ohms and the surround speakers are 8 ohms.

Speaker Impedance Defined

I inherited a home audio setup from my audiophile brother. There are three Polk LSi9 4 ohm speakers, beautiful things, I want to use them, but not the two smaller Polk speakers. Is it possible to run the three 4 ohm speakers from the receiver? Do subs affect connection considerations? They are all powered subs: The Jensen is a big black box, that should be hidden away somewhere.

What about loudspeaker impedance?

Maybe more info than needed? My experience is that audiophiles want more, rather than less info. On the back of the speakers is specified ohm. At what impedance should the receiver be set? Hi Clint, I recently auditioned a home theater system from Martin Logan. I am considering powering this system with the Marantz receiver. I am wondering if this receiver is a good match for these speakers, which has a nominal impedance rating of 4 ohms. Can you shed some light on this? Sorry, I sent before finishing. Can you please advise.

Your email address will not be published. Speaker Impedance Rating Explained That speaker impedance rating on your towers and bookshelf speakers is held up as a mystery—something strange and mystic, yet dangerous. Speaker Impedance Defined I think the easiest way to define speaker impedance is to say that it is the resistance any speaker gives to the current and voltage being applied to it. It makes perfect sense if you understand the math. This method will raise the impedance to 8 ohms.

4 ohm speakers on 8 ohm receiver? - Home Audio - Tom's Hardware

Since you are dealing with individual speakers, you must wire them in series to get the desired results. Wire the speakers as per the instructions. Plug your single 8-ohm cabinet into your 8-ohm amplifier. This procedure will allow for the most amount of watts going to the speaker cabinet.

Use an impedance matching device. Plug a speaker wire from your amplifier into the impedance matching device. From the device, plug another speaker wire into the 4-ohm cabinet. This method will match the impedance load to the minimum impedance that the amplifier can handle. In this case, it will change the impedance recognized by the amp to 8 ohms from the cabinet. These devices are expensive, but can reduce the risk of failure due to overheating. Never run an amplifier below its minimum impedance.