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Mesa Boogie PowerHouse Reactive Load Attenuator - 4 ohm

SKU: # 735170   |   Model: # AC.ATT4   |    Product Reviews1 Reviews  Write a Review

PowerHouse Reactive Load Attenuator - 4 ohm

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PowerHouse Reactive Load Attenuator - 4 ohm
PowerHouse Reactive Load Attenuator - 4 ohm
PowerHouse Reactive Load Attenuator - 4 ohm
Your Price: $769.99 CDN
or from $81 CDN/mo
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More Control On-Stage, Infinitely More Tone at Home
Every experienced player knows there's nothing like a great tube amp running in the power band for Tone, feel and excitement. Be it a 30-watt Combo running 6V6 or EL84s, or a full-blown 100-watt Head cranking with 6L6 or EL34s, nothing compares to the dynamics, expressiveness, fullness and dimensionality of a tube power amp operating "in the zone". However these days, venue volumes are down and neighbors everywhere aren't as tolerant as they once were. That's no reason to compromise your sound and run your favorite amp in its less dynamic idle zone because now Mesa Boogie has got you covered with the PowerHouse Reactive Load Attenuator.

The Attenuator You've Been Waiting For
Aficionados, this is the power attenuator youve been waiting for. One that puts Tone and feel first and includes valuable features you need while preserving the magic of your tube amp in all its harnessed-volume glory.

It start with a reactive Load - an expanded version of that used in Mesa's CabClone IR series, that protects your amp's power section and imparts much the same frequency and response curve and reacts with your amp's power section in much the same way your favorite speaker cabinet does, yet allows you to run silently and safely when a live speaker cabinet can't be used.

Set to LOAD or SPEAKER, you can take a signal out the optimized LINE OUT 1/4" output on the Rear Panel and feed your destination of choice, from Impulse Response players to additional amplification for headroom, consoles for re-amping to effects processors or anywhere an unprocessed signal (no Cabinet Simulation such as that found in the CabClone IR Series) is appropriate.

In SPEAKER Mode, the two 1/4" SPEAKER jacks on the Rear Panel function just as those on your amplifier do. In either case, the Attenuator is active and you can use it to reduce the output of your amplifier safely The Attenuation Control in PowerHouse is full featured and provides a Bypass plus 4 Power Reduction levels, -4, -8, -12 and -16dB, with the lowest setting featuring an infinite attenuation LEVEL control that allows whisper soft volumes and below. A Voicing Switch rounds out the Front Panel and includes NORMAL, BRIGHT and WARM settings on the 3-position mini toggle. Output to your Live Cabinets are covered as well with two 1/4" OUTPUT jacks wired in parallel, so running additional Extension Cabs is easy. The PowerHouse can handle amplifiers up to 150 Watts and is available in 4, 8 and 16 Ohm impedance versions/ratings.

Features
• Dynamic new Reactive Load Circuit + Attenuation provides the feel and tone of your amp running at its optimum output at any volume, with or without a real speaker cabinet!
• Rated for Amps up to 150-Watts
• Attenuator Switch provides 4 levels of power/volume reduction, -4dB, -8dB, -12dB and -16dB
• -16dB Level Control allows infinite power/volume reduction down from the -16dB position
• Speaker/Load Switch Choose between using your live speaker cabinet or the internal reactive load
• Normal/Bright/Warm Voicing Switch
• One Input Jack (From Amp Speaker Output)
• Two To Live Spkr Cab Output Jacks
• Independent Line Level Dry Output Jack (exact signal from amps speaker output) with Level Control
• Fan Cooled
• Tall Rubber Feet - Allows PowerHouse to sit on top of most amps, clearing the handle

Dimensions
8" x 7.375" x 3.5" (20.32 x 18.74 x 8.89 cm)
4.11 lb (1.87 kg)

Q & A


Question: Would this be suitable in sound and function for a bass amp rig?
- asked on Nov 30, 2023
Answer: As long as your bass tube amp is under 150 watts. It is generally made for guitar amps. (100 tube watts on a guitar amp is very loud where it is not as loud on a bass amp)
- answered by Daryl Guy, Pickering (Store), Ontario
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Answer: In theory yes, mainly it's important that your load is 4 ohm. but this item is meant to attenuate a tube guitar amp signal so you can have the advantage of the tubes sound without having high volume to manage. Which is handy for guitar amp. Normally bass player use other option to control their volumes. Can you send me an email, I would like to ask you more question to better understand your whole idea ! here is my email: [email protected] , cheers !
- answered by Robert Lalonde, Brampton, Ontario
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Question: Is this compatible with a tube combo amp? How so?
- asked on Mar 27, 2024
Answer: Yes, but impedance rules must be observed when using it in speaker mode.

User manual has more information.

https://legacy.mesaboogie.com/tone-tools/attenuators/powerhouse.html

- answered by Loudon Sharp
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Reviews


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Does Exactly what its supposed to 1 of 1 customers found this review helpful
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Closest Store   Victoria, British Columbia
Transparent attenuation. Better than the onboard tube reduction in my dual rectifier. I use the line out to send a signal to my Rivera guitar sub and it reacts appropriately to the attenuation. Built like a brick.
Posted by Des on Aug 20, 2021
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Protect your investment with the Long & McQuade Performance Warranty

A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.

Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.

How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
  • Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
  • Product Replacement: If your product cannot be fixed or costs too much to fix, we will replace it with the equivalent model for no additional charge. If this is not possible, a full refund will be provided.
  • No Lemon Policy: Your product will be replaced should the same problem occur multiple times.
  • Convenient: Easy drop off and pick up of the product at any Long & McQuade location.
  • Guitar Setup: Guitars purchased at Long & McQuade come with 1 free setup, to be redeemed within 1 year for new guitars and 90 days for used guitars.
  • Loaners Available: A loaner product may be given while the product is being repaired.
  • Power Surge Protection: Your product is covered even if damaged from a power surge.
  • Accessory Coverage: Any peripheral devices or accessories that come with your product (i.e. foot pedal, case) are also covered.
  • Commercial Use Coverage: Music and recording professionals who purchase gear for “heavy-use” commercial purposes will still be covered.
 

Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.

Purchasing additional years of coverage

Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.

If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:

  • NEW products: Starting at 4% of the current new selling price to double the warranty from 1 year to 2 years. Starting at 4% for each additional year.
  • USED products: Starting at 4% of the current new selling price to increase the warranty from 3 months to 1 year. Starting at 4% for each additional year.
  • GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
  • BAND and ORCHESTRAL instruments: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.

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