LE8T-2 (Aquarius IV) recone problem

[Earl K]

Nice turn of effects Ian!

[ian r]

Extraordinary,,, just listened 10 hours ina row....

JBL dynamics

Omnidirectional modality

So engaging and so emtional compared to my old and new Tannoys, sucking ones interest into the music but not with imaging.

Live and especially live rock is definitely unique. Organ music is proof the recone is physically sound. The Beatles Revolution from the Love cd with that distorted guitar was frankly startled me as it began with such slam and control of the bass

. if it was a car I would say it was fast and had real torque.

They definitely needed the dust blowing off and the warm up took them about an hour before a granularity in the HF sweetened up.

More tomorrow

I dont think I have ever heard anything like,them


ever

[macaroonie]

Yup , they are fun and engaging.

[ian r]

one presence control feels like grit in a bucket.

are they glued in..as well as screwed in?

is the pot under the knob or internal... if it feels so granular compard tomth other and only has one place it completes the circuit


is it kaput or will cleaner help?

Tweeters definitely not obviously flawed albeit not jbls

If anyone has a pointers to another pair of complete Aquarius4's

do let me know... and not just the tweeters which in an ideal world i would like to replace

[ian r]

Well after a week of listening i have finally found that one of the bass units needs refoaming inspite of the sellers remarks that he had refoamed them....

So a refoam kit and the LE20 -26 tweeters still needed.

I have an electrical engineer coming by on friday to check the xovers whilst they are in situ
but i have cleaned the presence pots with spray and turning and they are a pleasure to use again.

I was surprised to find the same dreadful speaker connectors are used on the woofer as used externally on the input panel. The electrical quality of the connection must be compromised by this design

[macaroonie]

http://www.audioheritage.org/vbullet...d-Step-by-step

Now while you are at it , and I can't remember this , is there a foam plug behind the dust cap? The foam will be a load of mush by now if there is so you may need to cut the cap off and clear the junk out . Then fit new cap.

Any rubbing noises if you move the cone back and forward ?

Yeah those spring conns were crap. It's not uncommon for the screw that holds it on to the frame to loosen off. Try tightening that one up !!! Also this gives rise to intermittent crackle which can be mistook for burnt coil etc

[ian r]

Thanks Mac, may I ask how you know so much detail?

Were you involved in hifi biz or as an engineer etc. up here in Scotland?

Im impressed anyway

The foam bung that is in sight occupies a hole in the base of the tweeter cab. it feels fine and no friability, and is slightly domed on the downward face

Is it to spread the bass out ....? or perhaps it damps the tweeter cab somewhat.

The dustcap is obviously metal but i havent had occassion to see behind it yet as the
cone moves freely and it was also very clean in there. no dust or bits ...so no need to proceed further till the refoam kit is located. However at least i know what to expect now, but there is no noise of bits etc. when handling the woofer

i have found a US ebay supplier who sells them for some 16$

Thank you very much for the link, thats kind

I probably dont need the xover checked as the source of the imbalance between cabs now...?

[macaroonie]

Were you involved in hifi biz or as an engineer etc. up here in Scotland?

For my sins yup


btw the go to guy for foam kits , with a universal thumbs up , is Rick Cobb.

here's your foams from his e bay store

https://www.ebay.com/itm/JBL-Speaker...-/172182580970

[ian r]

You wouldnt credit the bs Rick and I are getting around ..ebay says he both does and doesnt ship to the UK.
When I try to pay Ebay prevents it and Ricks resets havent shifted it...we are establishing backchannel links via email so hopefully sort something out

Have other UK or eu members had any problems importing or buying outside USA?

If it gets too problematic I will have to get a us friend to send it on as a lovely birthday gift for my wife.

[Odd]

Send an email to Rick directly.
[email protected]

[cooky1257]

You wouldnt credit the bs Rick and I are getting around ..ebay says he both does and doesnt ship to the UK.
When I try to pay Ebay prevents it and Ricks resets havent shifted it...we are establishing backchannel links via email so hopefully sort something out

Have other UK or eu members had any problems importing or buying outside USA?

If it gets too problematic I will have to get a us friend to send it on as a lovely birthday gift for my wife.

All you need is his Paypal linked email address then transfer money from your account to his-bypass eBay process entirely.

[ian r]

thank you

yes we have linked up

gift coming to my mrs.