CLICK HERE TO READ THE ATTENUATOR FAQ
This attenuator has a main volume knob and 3-position treble compensation switch which affect the signal to the speaker. It also has a 3-band tone stack and volume control for the line out signal only.
Impedance selector for 2, 4, 8, 16 ohms, 0, 3db, and 6db treble boost, MASS bypass switch, unbalanced line out, tone stack for line out, tone stack bypass, extra output jack, range switch. The MASS employs an actual speaker motor for the load to yield a realistic interaction between the attenuator and the output circuit of the amp. The attenuation is continuously adjustable from -3dB to over -70db using the speaker control and the range switch.
By turning the speaker control to minimum (maximum attenuation), the unit may be used as a dummy load for testing or for DI use.
There is an option to add a headphone output, and this adds an extra jack with an independent volume control. For the footswitch option, we install a relay which requires 7.5V external power. This only powers the relay – the attenuator itself is still passive. We include the power plug but the footswitch itself is not included. You can use any latching footswitch, including one incorporated in a multi-effect floor unit.
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*: *if you have a Fender or similar amp, and play with cleaner tones, this part does not apply to you. 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 with 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.)
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If you have a 1959 Fender Bassman, LTD reissue, or a clone: you need the BMH. Click here.
JC –
This product these people have crafted, is hands down, without a doubt, one of the BEST pieces of gear I own. With the Weber Mass, my tube head, and an ADA GCS-2 cab sim/di, I have achieved the guitar sound I have always sought after and dreamed about. I’m not sure if tears of joy were streaming but I’m pretty darn sure it was close. I’ve been experimenting and recording with this setup and it’s just face-melting. I’m worried the Weber Mass has just gateway-drugged me into going amp head crazy (already got my eye on a fender head). I can NOT heap enough praise onto this product. The people at Ted Weber should be commended and praised! Also, the build quality of this thing is insane! AND all the tone shaping features on it; amazing. I am going to be BURIED with this thing. The people at Ted Weber seriously need to infiltrate all the Guitar Centers and Sweetwaters of the world and show them how it’s done. They’ve made an advocate for their products out of me and I’m just 110% satisfied. Just jaw-dropped! Also the price compared to the value is ridiculously economical! If this thing was stolen I would buy a replacement immediately without hesitation. I also have to mention the tech support of a Mr. C.J. Sutton; I had a bunch of question and he answered them all for me EXTREMELY quick. Amazing tech. support (Seriously it was like an email reply within half an hour or less).
I have to say, after starting out and spending years recording guitars with Line6s/Zooms/Bosses/Guitar Rigs/Amplitubes and other amp modelers, I am NEVER going back thanks to tube amps and the Ted Weber Mass. EVER.
Also, check out this review of the Mass. Amazing, hilarious, and cracks me up every time!
https://www.youtube.com/watch?v=oo5gxyUWQ2Q
Cheers!
DR J –
Got one for a blackface super reverb and it does not disappoint. I use it to get a good tone on the Super and dial down the loudness to where you’re comfortable but still pushing some air and working the amp. You are able to add the highs back in with a flip of a switch and you cannot tell any difference with the mass on other than you are knocking down the db’s a to where you want them. Great product and can’t say enough about the customer service from this company. Highly recommended!
Matthew Meister (verified owner) –
WOW! This is a seriously great piece of kit. I ordered this specifically for a Tweed Bassman, but the versatility of this Mass 100 has found itself on many other amps in the collection. I can’t recommend this enough! It is a truly wise investment to get the most out of the amplifiers without going deaf or attracting the attention of law enforcement.
Viktor Iassinskii (verified owner) –
Just got mine, its amazing. Finally I can get the beautfill sounds at home out of my Fender Supersonic 60.