This attenuator has a main volume knob and 3-position treble compensation switch which affect the signal to the speaker. The line out signal is dependent on your amplifier settings.
Impedance selector for 4, 8, 16 ohms, 3-position treble compensation switch, MASS bypass switch, unbalanced line out. The MiniMASS employs an actual speaker motor for realistic interaction between the attenuator and the output circuit of the amplifier. The attenuation is continuously adjustable from about -3dB to over -50dB.
By turning the speaker control to minimum (maximum attenuation), the unit may be used as a dummy load for testing or for DI use.
5.5” x 5.5” footprint (add 1” in front for knob). 3.75” tall. 3.35 lbs basic.
Line Out jack has no volume control and is dependent on your amp volume setting, but we do offer a Line Level Volue Control here:
This item is hand-built to order, to ensure the best attention to detail is paid to its construction. We build them one at a time, on a table – not hundreds at a time on an assembly line. This allows us to reduce the margin for error and produce an overall higher-quality product. Please allow at least 7-10 business days for your order to be built and then shipped.
IMPORTANT NOTE ABOUT HIGH GAIN AMPS: High gain amps such as Marshall or clones (with heavy distortion) are hard on attenuators. Unfortunately, an amp’s volume dial is not a good indicator of how much power is being produced. Many amps can reach full power at 3 or 4 on the volume dial, so it is a good suggestion to get an attenuator with 4x the power handling. For example, if you have a 50w high gain amp, you should opt for the MASS 200. If you have a 100w amp, you should still go wtih the MASS 200 but you should not crank the amp.
1) do not attenuate too far down. this puts a lot of power through a very small section of the volume rheostat which can cause it to fail
2) also do not turn your amp all the way up. even if you’re just knocking a little off the top with the attenuator, it’s a good idea to keep the amp somewhere in the middle at most. it’s best to find the lowest volume on the amp that is the acceptable tone to you, and then use the attenuator to bring it the rest of the way.
CABLES: for combo amps, most people like to set the unit on top of the amp. sometimes there is enough slack in the speaker wire to reach and sometimes there isn’t. these cables will make it work for you: GMC2P and GMC2E If the speaker is hardwired, then you need the PV30MH.
(click the links to view them, and add to your order if you need them.)