Rivera Amplification Power Attenuator And Load Box - Long & McQuade Musical Instruments
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Rivera Amplification Power Attenuator and Load Box

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SKU: # 423062
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ROCKCRUSHER

Your Price: $825.00 CDN

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One of the greatest tools for a guitarist to adjust stage or studio levels while opening up the throttle on their tube amp is a great power attenuator. For home or silent recording, having a high-wattage capacity load box gives artistic freedom to record at all hours and in all environs. The ability to record or perform at controlled, low, or even silent levels is what the Rockcrusher is all about.

Taking a preamp output or turning down your volume doesnt give you all of your amps tone, because getting your favorite tube amp to perform and sound like it does when it is turned up means that you need the power-amp section to add that rich overdrive character. Unfortunately, there are not enough venues that allow for high levels that come from an amp running at full tone and power through speakers.

The Rockcrusher can be placed in between your amp and speaker cab as a power attenuator, or use it in place of your speaker cabinet as a load box while sending its balanced XLR or unbalanced line out to another amp as a slave, or even send its output to a mixer for recording or live performance.

In addition to providing superior tone, impedance matching is critical for your tube amp's health and longevity. We gave the RockCrusher an 8/16-ohm selector switch so you can use either value to accurately match your cabinets and amplifiers.

We also built in features that ensure the Rock Crusher is easy to use both onstage and in the studio. For bypass on the fly, which lets you use the amp with a speaker cabinet when full output level is desired, we included a front-panel full bypass switch that removes the load entirely.

When low speaker volume is desired, there is a Studio position of the Attenuator Level Selector that enables the Studio Level control to adjust from low to quiet output--perfect for home, project, and studio recording.

Balanced XLR and unbalanced " phone jacks with a convenient front-panel level control allow interfacing with practically any audio equipment. Two Speaker jacks allow easy connection with up to two speaker enclosures.

Solid construction is a standard feature of Rivera equipment, is also engineered into the Rockcrusher with a 16-gauge welded steel chassis, heavy-duty and rugged industrial-grade components are used throughout. The Rockcrusher is designed to give you years of reliable, cool-running service. In addition, both sides of the Rockcrusher chassis facilitate mounting rack ears or other brackets for professional road case installation.

Features:
• Superior natural tone balance at any level
• Selectable 8- and 16-ohm capability
• Reactive internal network for true amplifier/load interaction
• Immense thermal capacity ensures cool running and long life
• Tight impedance tolerances
• XLR and unbalanced line outputs with level control
• Low- and high-frequency equalization selection
• Load box and attenuator function up to 120W RMS capacity
• Enormous and robust internal components
• Full bypass capability with no insertion loss

Specifications:
Power Handling Capacity: 120Watts RMS Maximum
Amplifier Input Impedance: 8 or 16 Ohms, selectable.
Speaker output Impedance: 8 or 16 Ohm
Line Output Impedance: 560 Ohms Balanced or Unbalanced
Line Output Level: +10 db V Maximum
Chassis: 16 Gauge Cold Rolled Steel, Welded, Powder Coat Painted

The best Attenuator out there!1 of 2 customers found this review helpful

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Product ExperienceI own it
Closest StoreCalgary, Alberta
I've been using Rivera amps for almost 10 years now so when Rivera announced they were making an attenuator some years ago I knew I had to get one to replace the THD Hotplate I had at the time. Rivera's build quality is above and beyond and their attention to detail is amazing and comforting in that their products will last! The RockCrusher does a great job in maintaining the amp's tone and feel without compromising it with each level of attenuation. I found that the THD really got fizzy and fuzzy at the higher (quieter) attenuation levels where the RockCrusher did not. Another nice feature is that the RockCrusher can do either 8ohm or 16ohm where as "others" you have to buy one to match the required ohm loading. It's a big piece of gear but again, the quality is there! A little on the pricier side but if you are particular to your tone and amp's feel I don't think you can put a price on that. Attenuator's really should be an essential piece of gear for any owner of a tube NMV amp. I moved onto the RockCrusher Recording a couple of years ago but for the few years I had a RockCrusher it was great.
Posted by Jeremy on May 30, 2017
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Better Than I Expected0 of 1 customers found this review helpful

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Product ExperienceI own it
Closest StoreOshawa, Ontario
Get the recording version if that's what you want to do. It will record your ideas, but that's about it. However ... using it as intended, and mic recording your amp/speaker combo, it's wonderful. Or just keeping things low in a small club. There's no need to have your amp over volume 5. It picks up on the amp tone at a safe level. I honestly don't think this is good with a dark amp and dull speakers. Number one ... you will need speakers with some hi end sparkle and colour. And an amp that doesn't need the treble and bass boosted.
Posted by Pat McIntyre on Nov 12, 2016
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Great tool0 of 2 customers found this review helpful

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Product ExperienceI own it
Closest StoreBelleville, Ontario
Works great I have a 1967 Traynor yba 1 through two vintage 30s and it is very very loud but has a tone I have never herd before the rock crusher takes volume down and the sound stays the same works great built very well to love it would have like the rock crusher recording but did not have cash but this one is all I really need it a a must have for the yba 1 thanks
Posted by Brook on Aug 18, 2016
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Best piece of gear you will ever buy4 of 4 customers found this review helpful

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Product ExperienceI own it
Closest StoreToronto (Bloor St.), Ontario
Ladies and gents, the Rock Crusher is hands down the best investment you will ever make in any piece of gear. It totally -- totally! -- solves the #1 problem tube amp players have: these amps don't sound good at low volume. I cringed at the price tag but let me tell you, if I had to pay double I would bite the bullet and do it. It will give you true overdriven tones at reasonable volumes. If you live in an apartment (as I do), or even a house, volume is a serious issue and if you're like me, you bite your lip knowing you're giving up serious tone to avoid a knock on the door from the cops. Not any more. This unit gives you that pure, sweet overdriven tone at a volume no one can complain about. It has tons of adjustability -- if you want you could even get it as low as the sound of your pick hitting the strings and it still sounds great. Initially I hesitated to buy it because I thought the description was too good to be true. Well, it's $640 for a reason -- it does exactly what the manufacturer says it does. Don't waste your money and your tone on the cheaper attenuators. This is the real deal.
Posted by anonymous on Mar 16, 2015
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