PL400/PL 700 speaker connections

[marcok]

Till now I have used short banana plugs ,
since long banana plugs are not "suitable" , because shorts could occur .
What kind of connectors do you use ?
Thank you and ciao
Marco

 

[laatsch55]

Marco, I have always used the "expandable" type banana plugs. You twist to the right and the middle prong moves forward expanding the two banana sections....

 

[Fishoz]

I've heard, first hand, that you can over tighten the expandables and crack the receptacle. Have you ever experianced?

 

[laatsch55]

Nope, never had that happen. It would have to be a pretty cheesy receptacle....

 

[marcok]

Thank you , Lee .
Please can you give me
a reference for this kind of banana plug .
There is an another solution , that I have used in my father's PL 400 :
the dual short banana plugs .
I think it's a good solution , but now there's only one suppller in Hong Kong .
If I remember well it was a very popular solution in the ' 70s
What do you think about this connection system ?
I want to use the safest connections .
Ciao
Marco

 

[marcok]

I have found a type by Nakamichi .
https://www.amazon.it/Webkaufhaus24...9276&sr=8-2-fkmr1&keywords=banane+espandibili.
Are they the right type ?
Ciao
Marco

 

[moewillis]

I have found a type by Nakamichi .
https://www.amazon.it/Webkaufhaus24...9276&sr=8-2-fkmr1&keywords=banane+espandibili.
Are they the right type ?
Ciao
Marco

i like that style banana plug a lot.

i currently have a set of speaker cables with this style on it now...

https://www.aliexpress.com/item/500...2635873731.html?spm=2114.40010208.4.83.rE1g1Y

personally i hate them. they are too long and i had to pinch them down to fit is some of my binding posts

 

[Fishoz]

I've heard, first hand, that you can over tighten the expandables and crack the receptacle. Have you ever experianced?

Guess he was just a strong dumb ass.....

 

[R1200S]

Sometimes I wonder about those Nakamichi plugs and jacks since the internet seems to have LOTS of them for sale. Prices are all over the place.

http://www.ebay.com/sch/i.html?_fro...ana.TRS0&_nkw=nakamichi+banana+plugs&_sacat=0

I do remember reading an article a year or so ago that talked about the MASS of the plug or jack affecting the performance of the system. If I remember correctly the less mass of the connection device, the better. Unrelated to speaker jacks, I do know that a slim interconnect will work on my Acurus preamp and the fat ones just don't have enough clearance to fit their jack spacing.

Nothing beats bananas for convience!! Long term though... I think I'm going with spades. Seems like you want the maximum jack to connector contact for the best connection. You'll read about the surface area connection between the 2 parts and how there can be variability in that surface area with SOME banana plugs.

 

[marcok]

Thank you guys !
On Sunday there will be an electronic exhhibition near Milan and so
I will search for good connectors .
Ciao
Marco
P.S: Nakamichi was only an example .

 

[Billboard]

I have been using these, the spring type fell out to easily.

https://www.amazon.com/GLS-Audio-Lo...0BBDD3B8/ref=cm_sw_em_r_dp_d_i9A6xbBT1TPBB_tt

 

[laatsch55]

I like the looks of those...

 

[marcok]

Cool !!!
Ciao
Marco

 

[laatsch55]

Thank you , Lee .
Please can you give me
a reference for this kind of banana plug .
There is an another solution , that I have used in my father's PL 400 :
the dual short banana plugs .
I think it's a good solution , but now there's only one suppller in Hong Kong .
If I remember well it was a very popular solution in the ' 70s
What do you think about this connection system ?
I want to use the safest connections .
Ciao
Marco

Marco, I get mine at the local radio shack. Solder the speaker cable to it and voila!!

 

[marcok]

O.K. Lee .
Anyway for me right companion is this .
http://www.ebay.com/itm/GOLD-PLATED...hash=item41b3639e59:m:mvS_ZRH-dQ4rmuZhr9LFhVA
Already used on PL 400.
Ciao
Marco

 

[laatsch55]

I have those on the analyzer , but would not put them on an amp, they just won't stay tight...

 

[62vauxhall]

I have those on the amp. With the original 40+ year old posts, they did not inspire 100% confidence but do fit tighter in the new posts grapplesaw installed. There are definately better.

 

[marcok]

Anyway ,
it'must be said that if you want a perfect contact with short banana plugs ( single or dual )
it's necessary to loosen completely the banana sockets fitted on PL and Dynaco .
I was sure that I would have received many different answers .
Good thing to learn something new .
Thank you again guys .
Ciao
Marco

 

[marcok]

http://www.velleman.eu/products/view/?country=be&lang=en&id=9233
I have found this kit for dc protection .
I think it's O.K. for PL 700 .
My idea is to locate it in an extarnal plastic case and to use the switched outlet
for power supply .
What do you think about ?
Ciao
Marco

 

[laatsch55]

10 amps seems a little light....