Next, the two:1 relationship anywhere between typical presenter impedance recommendations enables certain alternatives when combo some other critiques

Next, the two:1 relationship anywhere between typical presenter impedance recommendations enables certain alternatives when combo some other critiques

Fundamentally, the brand new training offered by a keen ohmmeter is on the 2/3 to three/4 of impedance of one’s presenter

Well, let’s say brand new audio system keeps some other impedances? Such as for instance a keen 8 ohm cupboard and you may good cuatro ohm cabinet? A similar approach can be utilized. Making it easier, just remember that , impedance try an actual assets that does not believe the new voltage. This new presenter has the same impedance if the provider was 10 volts otherwise 1 volt. Therefore let’s use step 1 volt to really make it simpler The 8 ohm cupboard create mark 1V/8 ohms or 0.125 amperes. Brand new cuatro ohm closet manage draw 1V/cuatro ohms otherwise 0.250 amperes. Each other with her mark 0.375 amperes. Full impedance was 1V/0.375 amperes, otherwise 2.67 ohms. (See that the is lower than a reduced worth presenter.)

A cuatro ohm, an enthusiastic 8 ohm and you will an excellent sixteen ohm drawer all of the linked to a similar amplifier (1V aside) manage draw currents of 1/cuatro, 1/8 and you may step one/sixteen amperes, to have an entire most recent off 0.4375 amperes. Impedance was step 1/0.4375, or dos.286 ohms. (Having fun with a great calculator having a-1/x secret can make this rather easy. Key in: cuatro (1/x) + 8 (1/x) + 16 (1/x), =, (1/x) and read the answer.)

So, how will you give what the impedance of a speaker is?

Basic, if the every audio system (otherwise cabinets) have a similar impedance reviews, the full impedance is obtainable utilizing the impedance worth of one presenter and you can separating you to definitely by the final amount off speakers. If you return to all of our instance of 8 ohm audio system, we found that an individual presenter got an entire impedance out of 8 ohms (duh. ), a couple 8-ohm sound system had an entire impedance of cuatro ohms (8/2); around three sound system got an entire impedance of 8/3 ohms, or dos.67 ohms, and you may 4 speakers totaled 8/4 otherwise 2 ohms. (What the results are which have 5, six, or more audio system?)*

Just one cuatro ohm presenter is the equivalent of a few 8 ohm audio system inside the parallel. So a great 4 ohm presenter combined with an 8 ohm speaker would have an equivalent complete impedance due to the fact three 8 ohm sound system within the synchronous. (See if you can figure out brand new competitors to own an excellent 4, 8 and you may 16 ohm speaker combination.)*

So, once you see a presenter jack branded “Lowest Weight 4 ohms”, that implies you might link as much as a couple 8 ohm speakers or just one cuatro ohm speaker to this jack. (Imagine if the fresh new jack label says “Minimal 2 ohms”?)*

When you’re blend sound system with different impedance product reviews, make sure to look at the overall impedance utilizing the laws above to make sure the complete is within the limits of your amplifier. Solid-state amps typically have a ‘minimum load impedance’ expressed close the fresh new audio speaker terminals, and the full audio speaker impedance should be equal to or deeper than simply you to value. Tubing amplifiers normally have an activate the back to regulate towards the audio speaker weight impedance. Pipe amps have different yields qualities than just solid state amplifiers, and you will as well reasonable a load impedance will not usually ruin them, but the full yields can be weaker and dirty. Very too little stream impedance is still undesirable. Too high a load impedance towards a tube amp can lead to large voltages during the amp that ruin stamina yields tubes or even the output transformer.

On most cupboards, it ought to be posted for the a tag next to the jack. Should your audio speaker can be seen, it ped with the figure otherwise magnet. Determine the real impedance of a speaker or case needs an extremely state-of-the-art techniques involving laws generators, electricity amplifiers and high-frequency Air-conditioning voltmeters. Yet not, which have raw audio system and several cupboards, the newest ohmmeter purpose of an electronic multimeter helps you pick exactly what the impedance of the audio speaker are going to be. So, good cuatro ohm presenter often usually measure on the 2.5 – step 3 ohms, and you can an enthusiastic 8 ohm presenter tend to normally discover 5-six ohms, if you are a 16 ohm presenter tend to scale to a dozen ohms.

برچسب‌ها: بدون برچسب

دیدگاه خود را به اشتراک بگذارید

آدرس ایمیل شما منتشر نخواهد شد. قسمت‌های مورد نیاز علامت گذاری شده‌اند *