Hertz Mlk165 - Power?

[goldway 10+ year member]

To share with my setup. I was run MLK165 with Lrx2.9 which give 280w per channel. midbass is strong. passive setup.

Now changed to two unit of Vrx2.150 seems..less midbass. Vrx2.150 only give 110w per channel. Maybe Vrx2.250 is right choice for MLK165, to archive sound clearity and better misbass.

But i can not do anything now, Vrx2.150 is not cheap to me.

 

[titanle 10+ year member]

**** thats alot of power you guys are pushing!!! I have the hsk and i was doin 75 per side with my alpine mrv-f545. Just upgraded to the sundown sax100.4, apparently these amps are underrated and usually push about 125 per side. And I thought I had big power lol

 

[datboiroy]

i have a zapco dc reference 1000.4 hooked up to my MLK's, 500x2 at 4ohms.

 

[titanle 10+ year member]

i have a zapco dc reference 1000.4 hooked up to my MLK's, 500x2 at 4ohms.

holyyyyyyyyyyy.......does it really make that much of a difference in output?????

 

[Here-I-Come 10+ year member]

Power is not a bad thing until you good crazy with the volume and start to clip you head unit.

Headroom is you friend. We just have to remember because your amp is rated at 500x2 rms and can make to much power, it does not all the time. Not at the frequency we use them at for comps. You have see maybe 30-50% of that power most of the time. Subwoofer is a different story. Have to extra power ensure you also get super can power. It is always better to have it and not need it, then to not have it and need it.

Also somewhere on page 2 someone ask about using two amps in mono, one per side for his MLK165 and some said mono is not a good match, ask WHY NOT? He not saying he is going to run a mono signal (sum of L/R), but he going to use one amp for L and one amp for R. This is a great idea and some of the best system run this why. Its the same as having a 4 channel amp and bridging it to make 2 channels.

 

[BloWNMind 10+ year member]

**** thats alot of power you guys are pushing!!! I have the hsk and i was doin 75 per side with my alpine mrv-f545. Just upgraded to the sundown sax100.4, apparently these amps are underrated and usually push about 125 per side. And I thought I had big power lol

It's the 100.2 that is underrated, the 100.4 is very close to rated.

 

[khanhfat 10+ year member]

i have a zapco dc reference 1000.4 hooked up to my MLK's, 500x2 at 4ohms.

You blew the tweeters lol //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif 440w x2 from hertz HP4 amp is good enough not to blow it.

 

[datboiroy]

You blew the tweeters lol //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif 440w x2 from hertz HP4 amp is good enough not to blow it.

its ok, im waiting for a new set //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif gotta love warranty!!!

 

[buggsson 10+ year member]

I wrote to elletromedia or whatever the company owning Hertz is called. They said not to give the comp more than the rated 150W, and if you needed more, it would be because of crappy, overrated amps.

A general question, when a company rates a comp at, as in this example, 150W, do they mean "true" (as a substitute for a better term) 150W, that is, actual 150W from an amp. An amp rated at 2x150 will not give you the full 150W per channel, if you get what I'm trying to say? If I understand this correctly, a 2x200W class AB amp is approx. 60% effective, would that mean that the comps then only will se approx 120W each channel?

 

[fast85_gt]

you can give them to me and not worry about it j/k

 

[tcguy85 10+ year member]

I wrote to elletromedia or whatever the company owning Hertz is called. They said not to give the comp more than the rated 150W, and if you needed more, it would be because of crappy, overrated amps.
A general question, when a company rates a comp at, as in this example, 150W, do they mean "true" (as a substitute for a better term) 150W, that is, actual 150W from an amp. An amp rated at 2x150 will not give you the full 150W per channel, if you get what I'm trying to say? If I understand this correctly, a 2x200W class AB amp is approx. 60% effective, would that mean that the comps then only will se approx 120W each channel?

this should help ya, either that or confuse ya more.

Music is not constant in its peak amplitude. The ratio of average power to peak power is in the order of 10-20dB. (10dB = 10 times power and 20dB = 100 times power). I would imagine that modern rock and roll/rap music the value is closer to 10dB. This means that with typical music the average power when using a 200w/ch amplifier is in the order of 20 watts per channel with the peaks rising to 200 watts. Anything higher than the 20 watt average will most certainly push the amplifier into clipping.

an excerpt from here: http://www.diymobileaudio.com/forum/showthread.php?t=36040&highlight=clipping+explained&page=2

it talks all about clipping.

 

[headless 10+ year member]

i'd be pretty dissatisfied with my power line CS's if i only pushed them 150w/side.

Another thing to consider about power ratings is that they are generally given at a specific crossover point. If you cross your speakers over at a higher x-over point than they rate them at, it is likely that you can push more power to them than the rating suggests before they reach mechanical failure, because higher frequency = less excursion //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Note that you can still melt the VC's just fine, so it really depends on the speaker as to whether they can take the extra power or not. If the rating from a particular speaker is given because they just can't take the heat of that much power, raising the x-over point isn't going to help. If the speaker can take all that power without a problem but it its mechanical max at a particular wattage at a particular frequency that the company rates them at....then you may have room to work with. For example, the power line CS are rated from 35hz up. True to form, you can run them full range if you're nuts...you just can't turn them up too far, or they will reach their mechanical limits. If you cross these suckers over at 80hz/12db (fairly 'standard' for lesser component sets...or even 12db/100hz! ugh), they barely even move, compared to crossing them over at 60hz and steep 24db slope results in a lot more movement. If you push the volume too far, you will reach their max excursion. If you bring the x-over point back up to 80hz, you have room once again to add even more power.

 

[Psycareyo 10+ year member]

Hmm. So I guess my 60.4 will fail pretty hard providing the Hertz 570 comp set power? I'm not buying another friggin amp when I do my new setup on saturday. Can anyone recommend a good comp set that fits my Alpine 9883 & JBL CS60.4 well? I should probably just bite the bullet eh?

 

[buggsson 10+ year member]

Thanks guys, now I have a bit more understanding of the subject.

 

[khanhfat 10+ year member]

I wrote to elletromedia or whatever the company owning Hertz is called. They said not to give the comp more than the rated 150W, and if you needed more, it would be because of crappy, overrated amps.
A general question, when a company rates a comp at, as in this example, 150W, do they mean "true" (as a substitute for a better term) 150W, that is, actual 150W from an amp. An amp rated at 2x150 will not give you the full 150W per channel, if you get what I'm trying to say? If I understand this correctly, a 2x200W class AB amp is approx. 60% effective, would that mean that the comps then only will se approx 120W each channel?

So you say Audison is sucks? nah J/k

Well cause the magnet and the design of the MLK is so power hungry that it needs more than what the manufactuer's rating . IN the back of teh tweeter of ML28 it rated at 180W and the woofer rated at 250W if you added up it'll be 430W for the load ... so its perfect match for a HErtz HP4 amps.

250W + of power is plenty enough to make it sound good just to be on the safe side.