• QuadraphonicQuad welcomes you and encourages your participation! Treat all members with respect. Please keep all discussions civil, even when you have a strong opinion on a particular topic.

    Do not offer for free, offer for sale, offer for trade, or request copies or files of copyrighted material - no matter how rare or unavailable to the public they might be. We do not condone the illegal sharing of music. There are many places on the internet where you can participate in such transactions, but QuadraphonicQuad is not one of them. We are here to encourage and support new multichannel releases from those companies that still provide them and as such the distribution of illegal copies of recordings is counter-productive to that effort. Any posts of this sort will be deleted without notification.

    Please try to avoid discussions that pit one format against another. Hint for new users: make liberal use of the search facilities here at QuadraphonicQuad. Our message base is an incredibly rich resource of detailed information on virtually all topics pertaining to surround-sound. You will be surprised at what you can find with a little digging!

Review - Koss Phase 2+2 Quadraphones

Help Support QuadraphonicQuad:

doity

Member
Joined
Nov 29, 2014
Messages
47
From Popular Science 1975 I believe. I looked for years for a review of these headphones. Since they came out at the tail end of the quad craze they didn’t get much press. A good review and it basically confirms what I think about these great headphones. Good separation but sometimes hard to tell front from back unless you are listening closely.
35438CA3-44AD-4E9E-BD0D-430CCB5465A3.png
 

Attachments

hobie1dog

300 Club - QQ All-Star
QQ Supporter
Joined
Oct 26, 2008
Messages
309
Location
Cornelius, NC
Those were on my list of quad gear that I wanted to own. Still have the sales brochure of it.
 

par4ken

500 Club - QQ All-Star
Joined
May 28, 2011
Messages
599
Location
NW Ontario
I've had 2 pairs now, the worst thing is the foam ear pads rot and they are rather low sensitivity wise. The control box works by altering phase of the various driver units creating a bigger more spacious sound. I never liked the idea of the rear drivers being mounted in the front with frequency response limited to try to fool you to think the sound is in the rear. I like Quad phones that are elongated to provide some space between front and rear drivers. I have a pair of Koss K/6LCQ's that I sometimes use for monitoring recording or editing audio files. They have the drivers mounted top to bottom but provide absolutely no Quad separation effect at all.
 

Soundfield

701 Club - QQ All-Star
Joined
Dec 29, 2011
Messages
748
Location
Essex, UK
The whole concept of "quadraphonic" headphones is laughably flawed. Either the manufactures didn't know how the human hearing system works (which was quite likely) or they didn't care one way or another, thinking they'd sell any old rubbish at an inflated price if they could just stick a quad label on it (which was even more likely).
Now, I'm off to listen to some stereo records by sending both channels to one ear only.....!
 

Quadzilla

Exiled QQ Veteran
Since 2002/2003
Joined
Jul 9, 2003
Messages
2,179
Location
London, Ontario, Canada
I've had 2 pairs now, the worst thing is the foam ear pads rot and they are rather low sensitivity wise. The control box works by altering phase of the various driver units creating a bigger more spacious sound. I never liked the idea of the rear drivers being mounted in the front with frequency response limited to try to fool you to think the sound is in the rear. I like Quad phones that are elongated to provide some space between front and rear drivers. I have a pair of Koss K/6LCQ's that I sometimes use for monitoring recording or editing audio files. They have the drivers mounted top to bottom but provide absolutely no Quad separation effect at all.
I have a pair of Koss K/2+2 with the same top to bottom driver arrangement, and you are right. There is no quad effect at all. I use them when I record to my quad reel machines because I can hear all the channels at the same time. They are very uncomfortable too, like wearing vice-grips on your head. Quad collectors must have a pair of quad headphones though, even if they never use them.
 

doity

Member
Joined
Nov 29, 2014
Messages
47
In reply to Soundfield’s post:

I am sure that stereo purists said the same thing about Quad listening also. Did you even read the review? The Koss Phase headphones were about the closest to a Quad experience possible back then with headphones because of their design and their ability to shift the ‘listening space’ around via the different buttons. The review even states that the headphones even provided a better Quad experience than speakers do in some instances. But they seem to place more emphasis on overall “liveness” and ambience than just the trick of having instruments jump out from one corner or the other. Which is one thing that the headphones do somewhat well, but in a much more confined way than a 4 speaker setup would do.
 
Last edited:

doity

Member
Joined
Nov 29, 2014
Messages
47
I found a review of the aforementioned Koss Model K/2+2 from Oct.1972 from the same reviewers and they were not impressed. The Phase 2+2’s were almost 3 years later and with a cost of $150, $700 today if you factor in inflation.
 

Soundfield

701 Club - QQ All-Star
Joined
Dec 29, 2011
Messages
748
Location
Essex, UK
In reply to Soundfield’s post:
Did you even read the review?
Yes, I did, it was very amusing. It seemed to largely consist of a regurgitation of some pseudo-scientific marketing twaddle in support of the product.
Although the reviewer was clearly desperate to wring some positives out of the thing, the particularly damning paragraph:

phones 1.JPG

really tells you all you need to know about how ineffectual it actually was.
 

doity

Member
Joined
Nov 29, 2014
Messages
47
Yes, I did, it was very amusing. It seemed to largely consist of a regurgitation of some pseudo-scientific marketing twaddle in support of the product.
Although the reviewer was clearly desperate to wring some positives out of the thing, the particularly damning paragraph:

View attachment 44152
really tells you all you need to know about how ineffectual it actually was.

Well obviously you aren’t going to get the same listening experience as a set of 4 speakers but you do get separation. The positives are that you don’t have to have 4 speakers in your listening space and can move around, lie down, etc.

It is kind of hard to knock something you haven’t tried right? The people who make the Smyth Realiser obviously have figured out how to do it.
 

JonUrban

Forum Curmudgeon
Staff member
Since 2002/2003
Joined
Mar 2, 2002
Messages
15,825
Location
Connecticut
I remember driving from Virginia Beach, VA to an audio store (that I can't remember the name of anymore) in the Washington, D.C. area to purchase a pair of these headphones around 75/76. They were still being made, as I sent away for the QS Koss Perspective LP and it came fairly quickly after sending away the post card (remember those?)

I have to say that even though I was really fired up to get these, and at the time the cost was around $160 or so which for a sailor making $8000 a year a serious stretch, the were not that impressive. They sure LOOKED impressive, and all of the switches and stuff were impressive, but in the end, they were 'quad headphones', which is probably the only time that one can truly say "Hey, I only have TWO EARS"! :sneaky:
 
Top