It's my understanding the Ray4 shares the same pickups as the Ray34, but the Ray4 is series and the 34 parallel. I have a Ray5HH that I had rewired in parallel and find lots of great tones with it.
The Ray34 has the three band preamp, like a Sting Ray, while the Ray4 has a two band.
As for the bridge: the Ray34 bridge has two bolts into barrel nuts drilled into the body, kinda simulating the Sting Ray bridge I guess, while the Ray4 bridge has two screws. It's not a straightforward change, but is doable with a drill press…
I'm sure the Ray34 is overall much higher quality and I'm anxious to try one out soon, but I'm pretty amazed at what a great bass the Ray4 is overall and for that price point (Full disclosure: I bought my Ray5HH on a Musician's Friend Stupid Deal of the Day for under $300!). I've gigged with it and enjoyed the power and tone I got, along with an easy to play neck.
Bottom line for me would be if you're in the market for a $900+ bass, the Ray34HH is probably the way to go.
If you're starting out thinking about having to make a bunch of upgrades, I'd skip the Ray4HH.
The Ray34 has the three band preamp, like a Sting Ray, while the Ray4 has a two band.
As for the bridge: the Ray34 bridge has two bolts into barrel nuts drilled into the body, kinda simulating the Sting Ray bridge I guess, while the Ray4 bridge has two screws. It's not a straightforward change, but is doable with a drill press…
I'm sure the Ray34 is overall much higher quality and I'm anxious to try one out soon, but I'm pretty amazed at what a great bass the Ray4 is overall and for that price point (Full disclosure: I bought my Ray5HH on a Musician's Friend Stupid Deal of the Day for under $300!). I've gigged with it and enjoyed the power and tone I got, along with an easy to play neck.
Bottom line for me would be if you're in the market for a $900+ bass, the Ray34HH is probably the way to go.
If you're starting out thinking about having to make a bunch of upgrades, I'd skip the Ray4HH.