Jump to content

Top Gear - interesting, home grown or extreme.


Recommended Posts





On 29/04/2021 at 7:45 PM, andyr said:

 

Nice looking spkrs - but they should be out from the front wall by an additional metre or two.  :(

 

Andy

 

Lyngdorf’s RoomPerfect is one of the best room correction technologies out there allowing the speakers to be positioned close to the wall.

Link to comment
Share on other sites

46 minutes ago, Hydrology said:

Lyngdorf’s RoomPerfect is one of the best room correction technologies out there allowing the speakers to be positioned close to the wall.

 

Interesting, H.  :thumb:

 

But does it include soundstage depth optimisation in its room correction algorithm?  Or merely FR?

 

Andy

 

  • Like 1
Link to comment
Share on other sites



Guest niterida
8 hours ago, mwhouston said:

 

514C34E4-D1B4-4369-BDB5-9D8572760AF2.jpeg

Either she is a teeny tiny miniature human or those doors are massively huge !!

Link to comment
Share on other sites



On 29/04/2021 at 3:41 PM, mwhouston said:

My post was not backed by any listening or evidence just my understanding of the components involved. To me low impedance low efficiency speakers usually don’t go well with tube amps. But until i hear the combo - which may never happen - I’ll reserve comment. 

Quad 57 impedance curve, high impedance at most frequencies suiting valve amps, but low impedance at high frequencies, and reactive 

http://www.justrealmusic.com/content/measurements.htm

 

Arguably the finest midrange to date,  of any loudspeaker.

 

 

 

quadclsimp.jpg

quad 57 stacked pair .jpeg

  • Like 1
  • Love 1
Link to comment
Share on other sites

2 minutes ago, stereo coffee said:

Quad 57 impedance curve, high impedance at most frequencies suiting valve amps, but low impedance at high frequencies, and reactive 

http://www.justrealmusic.com/content/measurements.htm

 

Arguably the finest midrange to date,  of any loudspeaker.

 

 

 

quadclsimp.jpg

quad 57 stacked pair .jpeg

 

Stacked Quads - verrry nice!  :thumb:

 

Are they connected in series or in parallel, each side?

 

And what amp is driving this setup?

 

Andy

 

  • Like 1
Link to comment
Share on other sites

7 minutes ago, andyr said:

 

Stacked Quads - verrry nice!  :thumb:

 

Are they connected in series or in parallel, each side?

 

And what amp is driving this setup?

 

Andy

 

In series I'd hope!

 

Edit: looks like valve mono blocks.

Edited by muon*
Link to comment
Share on other sites

7 minutes ago, andyr said:

 

Stacked Quads - verrry nice!  :thumb:

 

Are they connected in series or in parallel, each side?

 

And what amp is driving this setup?

 

Andy

 

Hi Andy

They look like quad 2 power amps , as for driving them,  a article here delves into how it can be done  https://www.rstaudio.de/en-gb/stacked-quads-2/

  • Like 1
Link to comment
Share on other sites



8 hours ago, mwhouston said:

Just a few.

8326D02A-90DE-40C8-BA75-8825FA0D4BED.jpeg

A bloke had a pair of these for sale in the Classifieds. I think he dropped down to 75K which would of been a bargain for someone in the market.

  • Like 2
Link to comment
Share on other sites

1 minute ago, muon* said:

In series I'd hope!

 

Well, surely it depends which curve is impedance, Ian?  (Solid ... or dotted?)  If it's the:

**  solid line then:

  • in series you get max impedance of 60 ohms @ 40 Hz / min impedance of 2 ohms @ 17kHz
  • and in parallel, you get max impedance of 15 ohms @ 40 Hz / min impedance of 0.5 ohms @ 17kHz

 

**  dotted line then:

  • in series you get max impedance of 60 ohms @ 40 Hz / min impedance of 6 ohms @ 17kHz
  • and in parallel, you get max impedance of 15 ohms @ 40 Hz / min impedance of 1.5 ohms @ 17kHz.

 

Either way - they would seem to need a very special amp!  :o

 

Andy

 

Link to comment
Share on other sites

4 minutes ago, April Snow said:

Wow I wonder if that is a pond in front of him? Likely with Koi in it? But this room is dumb and just plain zero comfort.

Maybe a mirror :D

 

Agreed, It's a horrid room.

  • Like 1
Link to comment
Share on other sites

4 minutes ago, andyr said:

 

Well, surely it depends which curve is impedance, Ian?  (Solid ... or dotted?)  If it's the:

**  solid line then:

  • in series you get max impedance of 60 ohms @ 40 Hz / min impedance of 2 ohms @ 17kHz
  • and in parallel, you get max impedance of 15 ohms @ 40 Hz / min impedance of 0.5 ohms @ 17kHz

 

**  dotted line then:

  • in series you get max impedance of 60 ohms @ 40 Hz / min impedance of 6 ohms @ 17kHz
  • and in parallel, you get max impedance of 15 ohms @ 40 Hz / min impedance of 1.5 ohms @ 17kHz.

 

Either way - they would seem to need a very special amp!  :o

 

Andy

 

I'd change the speakers 🤣

Link to comment
Share on other sites



  • Recently Browsing   0 members

    • No registered users viewing this page.




×
×
  • Create New...
To Top