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Harley Benton PA-100 Power Attenuator

Power Attenuator

  • Useful tool for rehearsal room, live and recording applocations
  • Tube amplifiers as they sound best - high output level with reduced and controlled volume
  • Can also be used as a dummy load
  • Input power up to 100W
  • LED with overload indicator
  • Quiet fan
  • Controls: Speaker Level and Line Level
  • Inputs: 4/8/16 Ohm
  • Balanced speaker output
  • XLR DI output with speaker simulation
  • Dimensions: 19 x 14 x 11 cm
  • Weight: 1.5 kg

Further Information

Impedance 4, 8, 16
Noise Supression No
DI Interface Yes
Speaker Simulation Yes
Dummy Load (usable without cabinet) Yes

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Our most popular Guitar Amp Attenuators
315 Customer Ratings
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4.3 /5
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Alone and with Helix
Boddumblues, 05.03.2018
I got this unit and hoped it would work for me, and it does.
I wanted the mic sim and line out to be before the the dampening,
and thankfully it was easy to convert it to this.
I did not want the line out and mic sim to follow the dampening.
I added a 25 k pot on the mic sim out to add more control. Now I use it with my Marshall 6100 head and a VOX AC-10 (with a speaker in mod), and am quite pleased. I do find that mic micsim signal kind of collapses. But when using the linesignal through a Behringer Ultra-G Di. box I have a beautiful full signal. Of course it would be nice to have the micsim do it, but the Behringer just sounds better in every way. For the price of the PA-100 and the Ultra-G and my mods, you have a package that is hard to beat. ;-)
I do run presence on 100% on the 6100, and raise the treble on the AC-10 but it's fine.

What this unit allows for also, is use of the lineout in different ways;
1: Load your amp into a Helix.
I have patches in my Helix based on a VOX AC-15, but if I want to have my real AC-10 replacing the modelling amp, i can patch it in via one of the loops (line level) and it works like a charm.
I hear my amp in real life, the FOH gets a lineout from the Helix with the real amp through the Helix, and then I play with IR's, mainly Celestion Blues and Golds - sweet!
2: Lineout + IR's
The lineout without the micmod can have IR's added (Moer Radar etc.) to add flexibility and quality to the sound. Even using my Digitech RP-155 just as a cabinet simulator opens up a lot of sounds.
So there are a lot of sounds waiting to be heard.
Also in a DAW. Cheers ;-)
03-07-2018 Update
I tested running a JOYO JDI-01 from the line out, and man what a difference to the mic-mod out it is, it really works now, the cab sim on the JOYO is sooo much better in fidelity, the AC-10 really shines through the mixer now. It also beats the Behringer in clarity (the Behringer only has 1 cab sim, a 4x12, the JOYO has a 2x12 combo sim and a 4x 12 sim), I am very very pleased with this new dicovery!
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Fantastic for recording
SvBvBvBvBvB, 27.08.2021
Like the majority of people who buy this, I wanted a way to record my amp silently. I didn't want to pay over 200 euros for a "reactive" load which isn't really reactive (to get reactive you have to pay a lot more than 200, the closest popular "reactive" competing product is actually not properly reactive but uses it more as a marketing tool). It turns out this HB attenuator does a fantastic job at providing a clear line out signal. Running a Laney Ironheart at 60 watts at high volume, the attenuator doesn't seem to heat up at all. It's completely silent. Also, the actual attenuation (which for most people is just a side bonus feature) is great! Now I can have my master volume cranked up, my channel volumes cranked up, and the overall speaker output down at 0.5/10. I was afraid this might change the tone too much, i.e. remove a lot of high end, but no, it is minimal - it sounds a LOT better than just having the master volume turned down. The amp now sings. A great purchase.
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Attenuates more than the volume
sixstringslinger, 08.08.2020
For the price I wasn't looking for an amazing sounding attenuator, but I was pleasantly surprised.

Starting with the Pros:
- Inexpensive,
- Not impedance specific as other models are. The attenuator has 4, 8 & 16 ohm inputs.
- Sounds good

Cons:
- It attenuates the lows of an amp quite a bit, which could be a good thing if you have an overly boomy amplifier.
- It is a little brighter than the unattenuated sound of the amplifier.
- When the attenuator is turned all the way up, it's not nearly as loud as the unattenuated volume and there is no bypass switch to switch to full output.

I have not used and don't foresee a need for me to use the direct out option so I cannot attest to the effectiveness or sound quality of that part of the device.

All in all, It's a great solution to bring the volume of your amp down to bedroom volumes for practice, but I'm still on the fence as to whether or not this attenuator is gigable.
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Unbelievable value for money
Callum Hitchen, 26.11.2020
I searched high and low for a good attenuator, but most places charged £100+, when i saw the reviews of the Harley Benton one for the price i thought, might as well give it a try, so glad i did, brilliant piece of kit for the money!
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£58
Including VAT; Excluding £8 shipping
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

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