Dynaudio Heritage Special

[watchnerd]

What is the driver doing exactly? Can you measure what "medium high level" is for you so we can get to the same dbSPL?

BTW what amplifier are you using to drive them?

Well, yeah, if the amp is clipping, bad things can happen.

 

[watchnerd]

The driver has excessive movement, using an Accuphase E 470 with the volume at 10 O’clock.

You need to measure the SPLs.

Those of us who don't own Accuphase can't tell anything by your volume knob setting.

 

[PLB]

What SPL?

I'm not even seeing the drivers move at what I consider normal listening levels, 75-85 dBA at a distance of 5-6 meters.

 

[PLB]

80-85 DBA

 

[PLB]

So far only with that specific track.

 

[watchnerd]

80-85 DBA

At what distance?

 

[PLB]

At what distance?

Well, yeah, if the amp is clipping, bad things can happen.

Amp i
3m

 

[watchnerd]

Amp i
3m

Well, I'm hitting that level at double the distance (i.e. I'm listening louder).

Driver isn't even visibly moving unless I get really close and look at just the right angle.

Accuphase too wimpy!

 

[PLB]

Well, I'm hitting that level at double the distance (i.e. I'm listening louder).

Driver isn't even visibly moving unless I get really close and look at just the right angle.

Accuphase too wimpy!

I highly doubt it’s the Accuphase being to wimpy!

 

[watchnerd]

I highly doubt it’s the Accuphase being to wimpy!

Defective track?

It's not even remotely close to a challenging track.

What do you define as 'excessive' movement?

 

[Lavawood]

Swap speaker leads and see if the problem moves

 

[watchnerd]

Swap speaker leads and see if the problem moves

Oh, you think his phase is borked?

 

[PLB]

Swap speaker leads and see if the problem moves

That’s what I was thinking

 

[PLB]

file:///var/mobile/Library/SMS/Attachments/14/04/0AB1F470-E100-43B8-B437-850ED1231F49/IMG_8774.mov

 

[watchnerd]

file:///var/mobile/Library/SMS/Attachments/14/04/0AB1F470-E100-43B8-B437-850ED1231F49/IMG_8774.mov

We can't access that link -- that's a local link.

 

[PLB]

Sorry...Attempting to show a video.

 

[Lavawood]

I bought a pair of special 40’s From a Dealer floor once. I was assured they were perfect. When I got em home I played Stavroz, The Finishing at a near max level and found one woofer lost control. Swapped leads and the problem stayed in that woofer indicating a damaged woofer. It was replaced under warranty. If the problem moved you could point to input, not necessarily the track itself but you could rule out a speaker problem.

 

[watchnerd]

I bought a pair of special 40’s From a Dealer floor once. I was assured they were perfect. When I got em home I played Stavroz, The Finishing at a near max level and found one woofer lost control. Swapped leads and the problem stayed in that woofer indicating a damaged woofer. It was replaced under warranty. If the problem moved you could point to input, not necessarily the track itself but you could rule out a speaker problem.

Dealer abuse.

 

[Lavawood]

Or customer who borrowed them...
Or “poked” them
I was in a shop in Boise last week, they had a pair of C1’s on display. One of the tweeters was ripped open.

 

[PLB]

I bought a pair of special 40’s From a Dealer floor once. I was assured they were perfect. When I got em home I played Stavroz, The Finishing at a near max level and found one woofer lost control. Swapped leads and the problem stayed in that woofer indicating a damaged woofer. It was replaced under warranty. If the problem moved you could point to input, not necessarily the track itself but you could rule out a speaker problem.

Both drivers are behaving the same way. I'm going to swap out the speaker cables and see what happens. Tried the cd as well as Roon with the same outcome. Only with the first track and the first 10 seconds.