Roberts Reel to Reel tube preamps

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Good Friend

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I have had a few new starved plate tube products but they always sounded lame to me. I would buy them for like 1-2 hundred bucks then end up selling them to friends for like 40 bucks. Changing out the tube really didnt change the sound too much it just made it kind of different.

I ended up buying an old Roberts tube reel to reel and trying to use the preamps as tube preamps without the recorder and at first it sucked because the circuit is set for ultra high gain that makes the preamp sound way to bassy and totally lacking in high frequency content and detail. But inside there are switches that change what input you can use. Once you hit the switch you can use a normal sounding input. It makes them sound TEN TIMES BETTER. It really sounds like a tube sound and not some imitation. I also put a 3 prong power cord on them and it made them way more quiet. I am thinking about adding xlr and phantom soon. I know that people who are only into high end sounds will shit on this method, but for normal home recordists looking for a real tube sound i think you should give this a try. Just be careful because there are some serious electrical hazzards if you dont pay attention to what wire goes where when you are taking it all apart and rigging it for normal use.

I am going to possibly begin to make a few of these for sale already pre fixed up. I have seen a few pre modded ones for sale, but always way too expensive or way too amateurly done. If this helps anyone looking for a real tube preamp, good.
 
I've got a modded one, and yep, they are the real deal. Realy good sounding coloured preamp....
 
If I'm not mistaken those Roberts-branded reel-to-reels are actually made by akai. There's a guy online (like vintageaudio.com or something) who mods these exclusively.

Really nice looking pres

h1pst3r
 
Yep, they are indeed Akai's. I've got two Roberts machines and love the modules in them. I think I paid 80 bucks for the pair which gave me four preamps (line, mic, and even phono inputs) that sound better than four two hundred dollar preamps.
 
Great idea. It's always fun to think of creative ways to add some new color to the signal chain.

The Electro Harmonix tube pre is the best one I've got my hand on, on a budget. It's not starved plate. I recommend it.

I've got an old Akai machine. It doesn't have tube pre's, but they don't sound half bad either...
 
bounce said:
I've got one of these I really like :

http://www.vintageaudio.org/robertspres.html

It's more "sizzly" on the top than the EH pre. Very cool for some things...It's a bit noisy (small internal 60 cycle hum) but very workable.

Cool link. I've got four of those. I need them restored but I know a guy who can beat that price by a long shot.
 
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