Popping noise from Monitor 70s

F1nut

mole', it's not the speakers. It's because you are driving the amp section of your AVR into clipping. It clips sooner with the M70's because it's trying to drive a lot more speaker than the M50.

mole'

did some more testing, still getting the popping sounds.

last test is to try them on a buddies Rig/setup tomorrow.

F1nut

Do they still pop at much more reasonable volume levels?

mole'

F1nut wrote: »

Do they still pop at much more reasonable volume levels?

i ran to channels of wires to them (bi wired.Amped) and they still popped at the same area. the denon Tech had me hook them up that way. i did the micro cal 3 different times. changed settings area on the AVR and so on.

Any ideas???


Denon Tech said he is 99% sure its the speakers.

i (Bi Wired) the Monitor 50 and OMG did they sound awesome.

F1nut

You didn't answer my question.

mole'

F1nut wrote: »

You didn't answer my question.

Yes



sorry

mole'

i know the Polk Ebay Refurb shop is in Vista, Ca. i wonder how much they would charge to look/fix these?

F1nut

Ok, in that case I'll have to agree with the Denon rep. I would suggest you call, do not email, Polk Customer Service to see what they have to say.

For the record, -10 is still too high, keep the level down.

mole'

F1nut wrote: »

Ok, in that case I'll have to agree with the Denon rep. I would suggest you call, do not email, Polk Customer Service to see what they have to say.

For the record, -10 is still too high, keep the level down.

thanks.

im just gonna drive over to their shop and see whats up.


i wonder if it would be cheaper to just buy a Refurb set of M70s or get these ones fixed?

and if these cost too much to get fixed, which is the next best floorstanding speaker to get to replace them?

mole'

THANKS for everyones help

Loud & Clear

Both speakers are popping? What about other sources that are being played loudly?

I'd be surprised if both speakers suffered from the same problem.

Are you getting the popping when you're playing CDs? Cranking the FM radio stations? Etc?

tonyb

Sounds like something got jarred loose in the shipping. Call CS pronto.

domflane

Did you ever get a chance to try the 70's on your buddy's rig? Just wondering, if it is the speakers, Polk CS will help you work out the problem in a hurry. They're fantastic. But I would definately give them a call before you just show up at their refurb center.

BWilberg266

Curious what you have for your settings on the Denon. I'm running Monitor 70 with my Denon 1910 and the only time I've had issues is when I really crank it up with Mulit Eq On, Dynamic EQ On, and Dynamic Volume On.

Now that I know what I'm doing I realized I should never have the Dynamic EQ and Dymanic Volume on with it turned up that loud. The Denon attempts to boost various EQ points with Dymanic EQ causing some crazy peaks along the spectrum, and the Dymanic Volume compresses eveything to have more of a flat response no matter what volume is coming into the reciever. When listening at reference levels I would say only use the Multi EQ.

Even there I would express caution as with Audysee the lower frequencies can be boosted as much as 20db to attempt to create a flat curve when in actuality your speakers just cant reproduce the lowest frequencies.

I would suggest using the Multi EQ Flat setting, or use and SPL Meter and set up the Manual EQ for best results outside of Audysee EQ

Lastly, how do you have the speakers set up? Small/Large, crossover point, db adjustments etc?

DaveHCYJ

mole' wrote: »

i know the Polk Ebay Refurb shop is in Vista, Ca. i wonder how much they would charge to look/fix these?

mole' wrote: »

im just gonna drive over to their shop and see whats up.

I got the impression they won't do anything in person. I live ~10 miles away and they wouldn't let me come pick up some speakers I bought off the e-bay site so I had to pay the $20 shipping. I've been looking at getting some A9's off their e-bay site, but the $120 to ship them 10 miles makes my head hurt.

I'd be very interested in hearing how it goes if you stop by, maybe thats what it takes -- talking to someone in person rather than e-mail.

ZeroCoolPolks

Some AVR manuf.'s recommended not to exceed volume levels a little past 1/2 way. Cause of distortion that will damage speakers.

But on a scale of -80 to +116 or so,
On my high end Yamaha's Z11 & 3900 I don't go past -20. No need to with M70's, CS2, M40's and M30's. It’s all good.

For a mid range Yamaha RX-V665 not past -15 with Monitor 50's or 60's, CS1 & M30's in a 5.1, it's loud and clear. It can't drive much more than that and sound good.
Lucky to be getting 30 watts per channel in a 5.1.
Notice how this power is rated for a rxv665 at 1KHz
(RMS Output Power (1kHz)) 90W x 7 & a THD of 1 Khz with .9% THD
I would avoid those models that rate power with a 1KHz scheme, it's marketing crap.

With a RX-V765 and Monitor 70's, CS2 M30's. Volume not past -15.
RMS Output Power (20Hz - 20kHz) 95W x 7
Notice not rated on a 1 KHz scale (20Hz - 20kHz) Big difference in amp & audio quality to me.
(DISCRETE AMPS AND THD of .08%

The 5.6 Lbs. & RMS Power ratings between the 665 and 765 makes a noticeable difference in audio quality and the ability to drive larger & more speakers.

RX-V665 & RX-V765 both have pre outs.


And 4 the hec of it:
Something looks real wrong here:

Any manuf. that has benches like this I would avoid, but these numbers just look real wrong in 7.1:
Denon AVR-4810CI A/V Receiver:
HT Labs Measures

Five channels driven continuously into 8-ohm loads:
0.1 percent distortion at 123.5 watts
1 percent distortion at 148.2 watts

Seven channels driven continuously into 8-ohm loads:
0.1 percent distortion at 30.9 watts
1 percent distortion at 36.0 watts (Protection Engages)

Try and figure out who made the mistake HT Labs or Denon ?

Had an old Sony Dolby Digital used to pop in rears only was a Receiver defect well noted.


BTW:
Polk Audio Monitor60C Series II Floorstanding Loudspeaker (Cherry) Each
$299.99
Your Price: $129.99 each
With Promo Code EMCYVNV67

Denon rates their 2311CI at 105 a channel at 20Hz to 20KHz at 8 ohms and .08% THD
Good specs but you aren't getting it in a 7.1 config. and it's 23 Lbs. 8 ozs.

The Yamaha RX-V765 has more bang for the buck, unless U have to have 3D

mole'

ok, i adjusted the EQ in manual mode and used the Mic as per the Denon Tech.

my current settings on the Denon are
FL 0.0bD
FR 0.0bD
SW +5.0bD
C +1.5bD
RR +1.0
RL + 1.0
im using a 5.1 setup at the moment
they pop in a 2 channel mode too, but not as bad

Dynamic Volume is off

mole'

Polk CS said to unhook all the speakers but 1 of the M70s, place a pillow over them and narrow it down to see which speaker is popping. then pull that speaker out and see if anything came loose on the back side.

each sub is $60 and the twetters are $40 plus shipping.

they also said i could take them to the Refurb shop in Vista and have them looked over for a price cause i got them used and there is no longer a warranty on them.

domflane

Just go with what Polk CS recommended. Check all of your drivers, chances are that something came loose during shipping. What are the crossovers set at in your receiver? I see that you have the levels properly adjusted now. Hopefully its just a loose connection, $60 a driver hurts when newegg was selling the 70's new for as cheap as they were a few months ago. Did you tell CS that you're a Club Polk member?

mole'

domflane wrote: »

Just go with what Polk CS recommended. Check all of your drivers, chances are that something came loose during shipping. What are the crossovers set at in your receiver? I see that you have the levels properly adjusted now. Hopefully its just a loose connection, $60 a driver hurts when newegg was selling the 70's new for as cheap as they were a few months ago. Did you tell CS that you're a Club Polk member?

i did not mess with the crossovers. so im not sure what they are set at.

na i did not tell him i was a CP member. if i have to order ill see if that helps for a discount.

BWilberg266

On my setup I know that the Denon set my Monitor 70's to large when I set things up with the mic. Almost anyone you talk to would say they need to be set to small with a crossover at either 60 or 80. If they are set to large they are getting the full spectrum of sound and may be having issues there.

Just a thought.

mole'

im getting ready to head home now, does anyone know how to adjust/play with the crossover on the Denon?

if not ill call the Denon tech up. funny, but he did not even say anything about my crossover settings.

BWilberg266

Also seeing that the pop isn't the same or "as bad" when you go to two channel mode makes me think there is some sort of issue with the receiver. I can't imagine that would have any change to the pop if the issue was with the speakers.

mole'

BWilberg266 wrote: »

Also seeing that the pop isn't the same or "as bad" when you go to two channel mode makes me think there is some sort of issue with the receiver. I can't imagine that would have any change to the pop if the issue was with the speakers.

im new to this world.


so i have no idea.......

mole'

btw i have a SONY STR-DE635 that im taking home to try out with the M70s and see what happens plus the TS that the CP Tech told me about........

ZeroCoolPolks

Pillow method & another AVR, now your covering all your bases.:)

Speaker connection loose, may short, but not a popping sound, may be scratchy till it just goes out.
I'd wire just the 2 M70's and nothing else but a clean cd music or blu ray source

I'll guess the AVR, but hope I'm wrong.

BWilberg266

For instructions check out Batpig's Denon Guide

It's the best Denon guide out there. Turns the manual into plain spoken english. For the part on how to do the speaker settings scroll down to STEP 1 - Set up your Speaker Parameters, and then look under Option 2: Manual Setup.

He's got the instructions marked out pretty simply to change your speaker size and crossovers.

As far as with your remote control you will go to Manual Setup, then Speaker Setup. It's on page's 57 and 58 of the actual Denon manual

mole'

hooked the M70s up to the Sony. hooked up a CD player via rca cables.

played a CD and still getting the popping noise.

so i now know its not the Denon at all, but is in fact the speakers

now time to open them up and see what i find

mole'

BTW grimmace19 informed me that he did have insurance on the speakers Shipped via UPS

ZeroCoolPolks

Front covers off, pillow test 1st.

All the speakers popping or can U isolate the popping to one or two individual speakers.

Was looking for this forever "i (Bi Wired) the Monitor 50 and OMG did they sound awesome."
Obviously it's not the AVR, Geeez:)