Sub bass & bass Speakers with 18" Volt RV4564 drivers

[MF 1000]

The beasts have landed at the hotel in Stoke …hope to be testing them out late morning tomorrow

 

[newlash09]

The beasts have landed at the hotel in Stoke …hope to be testing them out late morning tomorrow

All the very best for the show sir

 

[MF 1000]

Feedback was good at the show and a few tracks had then hitting their end stops …., given their 1/2” travel that’s some bass !!!

Quite a few people chose tracks from Spotify and then commented they’d never heard the track like that before - seemingly in a good way thankfully.

A few things to do now between now and the 2023 in the Spring ….I’ll keep you updated

 

[MF 1000]

Following up on some discussions I had with Steve57 on the Sat eve (prior to the fire extinguisher inciden), the idea was to remove the 4th stage amp ….running the tweeters from my setup and feed the Scanspeak tweeters from the MingDa 845’s via a cap as a 1st order passive crossover. The idea being they the SET monoblocks should provide a more detailed top end than the Behringer A500.

I dug back into my crossover parts bin and found a pair of Jantzen Silver Z Cap 15uF caps that I could use in a test. Wired them up to the tweeters this afternoon and adjusted the DSP unit to run with them connected up to the Mings. A few tweeks on a filter to add in a bit of lift above 3.3KHz and it was on with a CD.

I’ve only done this by ear listening so far ….will have a look at it with REW next , but so far there doesn’t seem to be a decrease in performance……if anything less sibilance at high volume levels .

I’ll run with it this way for a while and report back.

 

[MF 1000]

Had some time alone this afternoon while Jane was delivering cakes etc so I set about using REW to look at what the changes to the response where after plumbing in the tweeters direct into my 845s.

After a few tweeks on the filters for the tweeters and a bit of gain added to the mid bass I’ve got the response curve below



The red curve was as the system was set up for Stoke and the green curve is as it is know …..top end detail is very crisp - the trade off is a small amount of background hiss.

A good move forward I think …..cheers Steve for being brutally honest etc

 

[MF 1000]

Just looked back in my saved files and found the last curve I had set at home prior to Stoke. This compared to the current curve is quite a change and even more down to the changes to tweeter setup.


the green curve is with the new setup and blue is prior to Stoke ….also shows how much impact the room at Stoke had too if you compare the blue curve with the red one in the previous graph