Raezer´s Edge Open-Back Cabinet 1x10 (EU)

[lapideusvir]

Selling a Raezer´s Edge Open-Back Cabinet 1x10
Eminence Copperhead.

Mint condition. With original cover.
399 Euro

Feel free to ask questions.

[marcwhy]

These are excellent cabs! GLWTS!

[lapideusvir]

These are excellent cabs! GLWTS!

I totally agree. I just sell because I have another one.

[58flame]

Excellent cabinet!! What I use.

[Woody Sound]

I never understood what makes an open back cab great or not great? I mean, as long as it's structurally solid, it's pretty basic, no? Maybe I just don't know what I'm talking about....

[nevershouldhavesoldit]

I never understood what makes an open back cab great or not great? I mean, as long as it's structurally solid, it's pretty basic, no? Maybe I just don't know what I'm talking about....

Open back cabs affect tone in many ways. First, the size of the opening affects tone, and it varies greatly from cab to cab. IIRC, about 50% of this RE 10 cabinet's back is open. The back of a Princeton Reverb is maybe 35% open, and many earlier vintage amps are closer to 80% open. The more open the cab is, the more rearward radiation reaches you from the speaker cone. That sound starts out 180 degrees out of phase with the front radiation, and it's reflected from every surface it hits on its way to your ears. All those reflections cause even more phase shift, so there's a richness and an openness to the sound from a wide open back that you don't get from a narrowly open back (or, obvously, from a closed cab).

Some of that rearward sound remains 180 degrees out of phase and cancels some of the front radiation, which is part of the "looser" bass you get from an open back than from a closed or ported cab. But overall you get a broad spectrum of direct and reflected sound with a wide open back that sounds "bigger" than the same cab with a smaller rear opening. This is part of the big sound of a Twin.

A deeper open cab will "hold" the rear radiation longer before it gets into the room. This reduces the amount of phase interaction with front radiation because the rear sound waves are more attenuated before they get out of the cabinet So the sound is less full and open from a deeper cab, but the bass is tighter and the midrange is in better balance with it (which cuts boxiness).

How well braced the cabinet is affects tone, because some cabinets vibrate sympathetically and have resonances that color the sound. An original Raezer's Edge cab is solid as a rock and braced like te Brooklyn Bridge. So it adds very little coloration of its own. But light and/or weakly braced cabs act as sound radiators themselves, and their resonances can grossly affect tone. Many older open back amps used thin baffle boards because it was thought that the vibration of the baffle added positively to the tone quality of the amp (e.g. tweed Fenders). No doubt, it affected tone - but whether that was positive or not is an individual decision. Changing the baffle to a stiff thick one or a thin flexible one in an open back cab can dramatically change tone.