PDA

View Full Version : I've gone Quadraphonic



Audio Al
16-09-2012, 15:01
I've gone Quadraphonic

Picked this up recently , it's a Napolex QA-10

Found this on the web

" The NapolexQA10 Quadraphonic Adaptor allowed users to add a second pair of speakers for surround sound duties while switching allowed
A choice between stereo 2 channel and
A 4 channel 'surround’ or 'hall' effects
With the Rotary Knob setting the rear levels. "

And its made in JAPAN so must be good ;)

Looks like this

Macca
16-09-2012, 15:28
Great little curiosity that. Must be from about 1970.

synsei
16-09-2012, 15:35
It looks to be well made although the nasty, spring loaded speaker terminals would limit you to fairly modest speaker cable. Nice find though Al and it is in terrific condition ;)

Rare Bird
16-09-2012, 15:54
I have a Sony 'SQD-2010' Decoder, i am however looking for minto Sony 'SQE-2000' Encoder & 'SQD-2020' Decoder..

jandl100
17-09-2012, 06:48
Ooo - I'm jealous. I love playing around with stuff like that. :drool:

All you need now is a graphic equalizer ... :thumbsup:

Rare Bird
17-09-2012, 13:36
All you need now is a graphic equalizer ... :thumbsup:

;)

TBL
17-09-2012, 17:19
Ooo - I'm jealous. I love playing around with stuff like that. :drool:

All you need now is a graphic equalizer ... :thumbsup:

There's a brand new one on ebay

http://www.ebay.co.uk/itm/140809519827

SteveW
17-09-2012, 17:34
got a quad version of Dark side of the moon.
Never really known what on earth to do with it. How does it work anyhow?

Beechwoods
17-09-2012, 17:47
Which version?

jandl100
17-09-2012, 18:00
There's a brand new one on ebay

http://www.ebay.co.uk/itm/140809519827

Nah - that's getting on for a £ton - it's the sort of thing you want to pick up on eBay for a fiver. :eyebrows:

Beechwoods
17-09-2012, 18:46
The best Quad transfers I've heard have been taken from 8-Track carts played back on converted 8-track open reel machines.

This is a good page for what's out there...

http://www.quadraphonicquad.com/QQ-PFQ.htm

Audio Al
17-09-2012, 20:10
got a quad version of Dark side of the moon.
Never really known what on earth to do with it. How does it work anyhow?


Is that on LP , CD or 8 track

If it 8 track i have a nice Akai player to listen to it on :eyebrows:

Beechwoods
18-09-2012, 08:34
Al,

I think that's a stereo machine. You'll need a proper Quad 8-track to listen to all four channels simultaneously.

Audio Al
18-09-2012, 11:27
I think that's a stereo machine. You'll need a proper Quad 8-track to listen to all four channels simultaneously.

O Bottom ! :lol:

synsei
18-09-2012, 17:10
Ooo, I like that Akai, I should imagine that's a rare beast... :)

Audio Al
18-09-2012, 17:15
Ooo, I like that Akai, I should imagine that's a rare beast.

Hi Dave

Yes it's on the same list as Hens teeth and rocking horse Poop :lol:

I even have the original instruction manual for it :)

For its size its mega heavy as well

Cheers

Rare Bird
18-09-2012, 17:42
As Nick knows i have an CR81D, correct they are mega heavy & built like tanks..

Beechwoods
18-09-2012, 18:04
:lol: I have one as well, and they are indeed exceedingly well built!

awkwardbydesign
19-09-2012, 20:43
I've gone Quadraphonic

Picked this up recently , it's a Napolex QA-10

Found this on the web

" The NapolexQA10 Quadraphonic Adaptor allowed users to add a second pair of speakers for surround sound duties while switching allowed
A choice between stereo 2 channel and
A 4 channel 'surround’ or 'hall' effects
With the Rotary Knob setting the rear levels. "

And its made in JAPAN so must be good ;)

Looks like this
Is this unit what used to be called a Hafler effect unit? If it is, then it simply takes the outputs from the 2 positive speaker terminals and runs it round to 2 rear speakers wired out of phase with each other. You can bleed a little to ground between the rear speakers via a volume control, to increase separation. I used to do this in the '70s, and it can be very good, depending on room and speakers. You need speakers with not too much bass, or it will cancel. I must try it again sometime.