Someone was asking about this decoder on the forum a few weeks ago. This is an Electro-Voice EVX-44 Universal Four Channel Decoder.
![IMG_0058.JPG IMG_0058.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2969-a573d99110c0602bc7f0855c78aeca63.jpg)
I picked this one up for next to nothing and expected it to be on par (or worse) with the bottom line Radio Shack quad synths. I was pleasantly surprised how well these units work. They will never make you trade your Tate or QSD-1, but they do a pretty good job of decoding both SQ and QS as well as the few records actually recorded to be decoded using an EVX-44. The Beach Boys "Surf's Up" album states in the liner notes that it was recorded to be played back using one of these units.
![IMG_0066.JPG IMG_0066.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2970-5804d0fab1aca68244e9b23c444fb976.jpg)
The construction is nothing fancy - brush aluminum front, plastic & aluminum knobs, plastic 'wood grain' sides and metal back and surrounding case. Cheap, but solid with decent input/output jacks. (The pictures make it appear there is some yellowing on the front face, but that is from my flash. This thing looks brand new.)
![IMG_0061.JPG IMG_0061.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2971-9b3396f7e83886a4399176d229a4bbdd.jpg)
It has inputs for a quad tape deck and a stereo deck, so pretty versatile as these things go.
![IMG_0064.JPG IMG_0064.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2972-00115ed365a2e3c3e6199e0c0335984c.jpg)
The unit only draws 5 watts, so there isn't a whole lot going on inside the single circuit board that holds the electrical components. The decoder switch has three settings (in addition to a discrete pass through for a quad tape deck). The different decoder settings are explained in the owners manual below.
![EVX44a.jpg EVX44a.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2968-b63d12bfc3f4e06e335753a6e8588408.jpg)
![EVX44c.jpg EVX44c.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2974-049a2bc2a57cad080144534c09b7ade4.jpg)
![EVX44e.jpg EVX44e.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2976-066340808767c78d28dfd1ac1b2489f6.jpg)
That's all for tonight. I have a few more oddities I upload soon.
Mark
![IMG_0058.JPG IMG_0058.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2969-a573d99110c0602bc7f0855c78aeca63.jpg)
I picked this one up for next to nothing and expected it to be on par (or worse) with the bottom line Radio Shack quad synths. I was pleasantly surprised how well these units work. They will never make you trade your Tate or QSD-1, but they do a pretty good job of decoding both SQ and QS as well as the few records actually recorded to be decoded using an EVX-44. The Beach Boys "Surf's Up" album states in the liner notes that it was recorded to be played back using one of these units.
![IMG_0066.JPG IMG_0066.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2970-5804d0fab1aca68244e9b23c444fb976.jpg)
The construction is nothing fancy - brush aluminum front, plastic & aluminum knobs, plastic 'wood grain' sides and metal back and surrounding case. Cheap, but solid with decent input/output jacks. (The pictures make it appear there is some yellowing on the front face, but that is from my flash. This thing looks brand new.)
![IMG_0061.JPG IMG_0061.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2971-9b3396f7e83886a4399176d229a4bbdd.jpg)
It has inputs for a quad tape deck and a stereo deck, so pretty versatile as these things go.
![IMG_0064.JPG IMG_0064.JPG](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2972-00115ed365a2e3c3e6199e0c0335984c.jpg)
The unit only draws 5 watts, so there isn't a whole lot going on inside the single circuit board that holds the electrical components. The decoder switch has three settings (in addition to a discrete pass through for a quad tape deck). The different decoder settings are explained in the owners manual below.
![EVX44a.jpg EVX44a.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2968-b63d12bfc3f4e06e335753a6e8588408.jpg)
![EVX44b.jpg EVX44b.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2973-ed27fe2f408e4257a801c57bb850ad0d.jpg)
![EVX44c.jpg EVX44c.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2974-049a2bc2a57cad080144534c09b7ade4.jpg)
![EVX44d.jpg EVX44d.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2975-14475140fa8afbf2331dac121400c15b.jpg)
![EVX44e.jpg EVX44e.jpg](https://cdn2.imagearchive.com/quadraphonicquad/data/attachments/2/2976-066340808767c78d28dfd1ac1b2489f6.jpg)
That's all for tonight. I have a few more oddities I upload soon.
Mark