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Harrison Labs 12 dB RCA Line Level Attenuator Pair

4.2 out of 5 stars 25 customer reviews

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1 new from $25.90

Technical Details

  • Brand Name: Harrison Labs

Product Description

Attenuators reduce the drive signal to an amplifier so that the input level or gain control can be adjusted in a more useful range.

Product Information

Product Dimensions 4.2 x 2.8 x 0.1 inches
Item Weight 0.3 ounces
Shipping Weight 0.3 ounces
Manufacturer Harrison Labs
ASIN B0006N41B0
Customer Reviews
4.2 out of 5 stars 25 customer reviews

4.2 out of 5 stars
Best Sellers Rank #630 in Electronics > Accessories & Supplies > Audio & Video Accessories > Cables & Interconnects > Audio Cables > RCA Cables
#7,338 in Electronics > Accessories & Supplies > Home Audio Accessories
#13,373 in Electronics > Accessories & Supplies > Cables
Date first available at Amazon.com February 1, 2006

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Customer Reviews

Top Customer Reviews

By James Brady on February 23, 2013
Verified Purchase
Pros: Well built, work exactly as described, no quality loss
Cons: None

I've been interested in the Schiit Magni amplifer, along with the Schiit Modi DAC. I purchased them and they paired well with my Hifiman HE-400, but as the Magni is something of a budget amp that hits beyond its price point, they had to cut cost somewhere.

That cut game with the volume potentiometer. There's very little play on the volume pot, especially at a fixed gain of 5. I was only ever able to get it to around 9 o'clock before I was comfortable, but moving just a little bit put it out of my range.

Enter the Harrison Labs 12 dB RCA Line Level Attenuator Pair. I bought these, plugged them into the back of my Magni's RCA ports, used by Blue Jeans Cable LC-1 RCA cable with them and into the Modi and viola - I instantly had more play on the volume knob. I could get to around 3 o'clock without it being totally uncomfortable, and small turns didn't result in drastic changes.

Best of all, I was unable to discern any loss of quality in what I was able to do in regards to blind testing.
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I got this so I could skip a pre-amp, and go straight from my USB DAC to my power amp.

It indeed does the trick.

I have no idea why people pay $$$$ for these crazy passive systems, when a simple resistor-divider devices like this does the trick (without the associated impedance issues, since the higher-impedance output is right next to the amp, and has very little capacitance to drive).
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This was exactly what I needed. I'm transferring vinyl records to my computer, but the super high 9.5mV output of a Shure M44-7 was too much for my sound card to handle. These attenuators helped. I'm glad I read other reviews and went with the 12dB model. It was barely enough. If you are in the market for these, go with 12dB.
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These do the trick for a BLARING Nintendo Wii Game System. Volume levels that are WAY TOO LOUD are a common problem for the Nintendo Wii. Plugging these into the audio cables between the Wii and the A/V amplifier is easy and brings the audio level down to the same level as that of the other components in the system. I used the 12 dB Attenuators. You get two in the package, one for the left channel and one for the right channel. I highly recommend these units as the build quality and function is excellent !!!
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I have speakers that are so efficient that my receiver volume control gets quite loud enough after turning up the control (the pot) only a little bit. It's an old Onkyo and has a lot of power, and my speakers are Polks in a model that is very efficient. So, I always wanted to get this amplifier attenuated a bit to get the volume control in a better range.

This receiver/amp makes using the Harrison attenuators easy. It has rca preamp outs right into main amp in on the back of it. So, I pulled the little pins making those connections, used two very short patch cords along with the two attenuators, and put the -12 db in between the preamp out and the amp in. It works perfectly. It gets my volume control that much more off the floor of it's range where it's not all that even between channels (like most of such pots that control volume).

IF I had any need to turn the -12db on and off with my remote control, I could have put these on the good old Tape 2 monitor and created a loop where, when I selected that (along with whatever other input) it would loop the signal out the back and back in again, minus the 12db, and have it as a handy on and off for the attenuation. But, I don't need to turn the attenuation on and off. On all the time is great.

So, works as advertized for me. If there is any degradation in sound, I surely cannot detect it and I'm pretty picky. These are excellent.
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These are rather expensive attenuators but being made of solid brass and gold platted to boot, they are worth the money spent since these are very hard to find!

I bought these to attenuate my Hafler DH-500 amp with my Carver C-1 preamp that are both in mint condition. These worked perfectly and didn't effect the sound output in any way other than simply knocking down the amps output by 12 DB.

Sold from Parts Express as well as from Amazon.
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I got these so that I can hook my Wii up to my receiver. The Wii's sound output is WAY too high for most receivers, resulting in clipping and distortion. These reduce the audio level to eliminate that issue.
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They did the trick and work exactly as expected. I almost went with the 6db version but glad I decided on the 12db. I have them hooked up to a cd player with a very high output which now has a usable volume range.
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