Rickresource Rickenbacker Forum

Ok I had this thread in amplifier section and maybe I am to impatient But am wondering if this TR100 is worth 300 dollars and even if it can be used with a bass. I figured it is a guitar amp but was curious so what do you folks think????
Has a nice 4X10 half stack cab too

The guy is the second owner of it and he hardly used it as it is in his words TOO LOUD!!!!!!lolololololol

Is the cab a sealed one? If so, that may work fine as long as you put appropriate drivers in it; the amp itself, should be fine, too. Can you test drive it, before purchase?

Yes I can test drive it .....lololol will find out about sealed cab. never heard of sealed cab what is purpose of that ????

also is it a good buy at 300 dollars if i decide to go there. I still love my Acoustic rig but was like if it is a good deal maybe i will get it type thing

I can't say as to the price, I really do not know the value of these amps. As to a sealed cab, look up 810 SVT.

RicOSoundMan wrote:never heard of sealed cab what is purpose of that ????

Well, mostly, it's just another way of designing a speaker cabinet. A speaker driver, just sitting in the air won't produce a lot of usable sound because the opposite sides of the speaker produce sound waves that are 180 degrees out of phase and will cancel each other. So, you have to do something to stop this.

The simplest way is just to stop the sound from the back side of the driver from coming out to interfere with the sound from the front - often called an infinite baffle, though those may not always be sealed.

Another way is to "port" the speaker cabinet and then tune the cabinet so that the sound from the back gets shifted 180 degrees to add to the sound from the front. This gets tricky and will only cover a relatively small range of frequencies before the tuning doesn't work and you start to get cancellation.

Now, a sealed cabinet causes the air inside the cabinet to get compressed when the driver cone moves inwards and acts like a spring to push the cone back out as it moves forward. This can give it a faster transient response, allowing it to respond quicker to sudden changes. This can give you a punchier, more accurate sound than you can get with a ported cabinet. The ported cabinet can, in general, move more air and can have a deeper bass response, all at the expense of frequency range and clarity (they may sound muddier).

It's WAY more complicated than that, but that should give you the general idea...

whether you can use it or not, 300 bucks for a amp that you dont see very often seems like a good deal if you like collecting odd ball stuff

cjj wrote:A speaker driver, just sitting in the air won't produce a lot of usable sound because the opposite sides of the speaker produce sound waves that are 180 degrees out of phase and will cancel each other. So, you have to do something to stop this.

Tell that to these guys. I love mine!

I did say that things were more complicated than that simple explanation. It certainly doesn't cover all speaker/driver designs..

Yet this is a guitar amp isn't it??? thanks for the input guys