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Harrison Labs 12 dB RCA Line Level Attenuator Pair

Harrison Labs 12 dB RCA Line Level Attenuator Pair

Q: Does anybody if they are L pads, T pads or π pads? Can the signal go either direction through the pads?

They are directional. They go on the input side, in the back of the amp or receiver you are plugging the CD or other audio-feeding component into.

Q: What are the resistor values of the resistor ladder in this product? Passive attenuator alters the freq response b/c cable and amp input are not purely resistive. Customers should know how much alteration will occur with the passive attenuator.

Resistance measurements are: Jack-to-Gnd:9.0K, Jack-to-Plug:6.8K, Plug-to-Gnd:2.2K. This implies that the attenuator consists simply of a 6.8K series resistor from Jack to Plug, and a 2.2K terminating resistor from Plug to Gnd.As a sanity check, 2.2/(2.2+6.8) = 0.24 = 12.2dB, matching the claimed attenuation.These measurements surprised me, though, because evidently this attenuator is NOT symmetric. You must run the input signal into the Jack end and take the output from the plug end in order for it to behave as a 12dB attenuator. If you run it the other way you will get some indeterminate attenuation based on the source impedance of your signal and the load impedance of whatever is receiving it, along with some worsened frequency response as these interact with non-resistive elements of both ends.

Q: Is this -12dB signal attenuation or -12dB Power attenuation?

From product description found elsewhere. "Attenuators reduce the drive signal to an amplifier so that the input level or gain control can be adjusted in a more useful range. For example, if the line driver has an 8 volt output and the amplifier has a 100mV (0.1V) to 2 volt range of input level, the gain pots would have to be all the way down. A 12 dB attenuator would allow you to adjust the amp's gain control to about 1/2 rotation. Many home A/V receivers and basic amplifiers do not have input level controls and attenuators are also perfect for these applications...24 kt gold over brass construction." Also the product description on Amazon says this, "Attenuators reduce the drive signal to an amplifier so that the input level or gain control can be adjusted in a more useful range. "

Q: My ap4-gm61 has a 4v output, my 4ch amp has a 2v input sensitivity. Will these help?

First, what type of device is your 'gm61'? I don't know how dB translates to volts, but the Harrison 12dB attenuators should definitely make an audible difference. You'll have to turn your 4ch amp volume up higher to hear it as loud as before, but there will be less strain on its input stage.

4.4/5

Product ID: 412540260

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Details

Brand
Harrison Labs
Connector type
RCA
Cable type
RCA
Compatible devices
Amplifier
Special features
High Speed

🔊12 dB precise attenuation

🔗RCA male-to-male connectors

🎛️Optimized for amplifier compatibility

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Harrison Labs 12 dB RCA Line Level Audio Attenuator Pair

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Description

🎧 Master your soundscape with precision and style!

COMPACT DISCREET - Sleek design fits neatly into your audio chain without clutter or signal loss.
DURABLE BUILD QUALITY - Engineered for reliable, long-lasting performance in any professional or home audio environment.
SEAMLESS CONNECTIVITY - Male-to-male RCA connectors ensure effortless integration with your amplifier setup.
UNIVERSAL COMPATIBILITY - Designed to work flawlessly with a wide range of amplifiers and RCA-equipped devices.
PRECISION VOLUME CONTROL - 12 dB attenuation lets you fine-tune your audio levels with surgical accuracy.

The Harrison Labs 12 dB RCA Line Level Attenuator Pair offers precise 12 dB attenuation through durable male-to-male RCA connectors, designed specifically for seamless amplifier compatibility. Ideal for professionals and audiophiles seeking refined volume control without compromising signal integrity.

Specifications

Item Weight	0.01 Kilograms
Shape	Round
Color	Gold
Recommended Uses For Product	Audio signal level adjustment in audio equipment setups
Number of Pins	2
Additional Features	Short Distance
Connector Gender	Male-to-Male
Connector Type Used on Cable	RCA
Cable Type	Composite

Have a Question? See What Others Asked

Does anybody if they are L pads, T pads or π pads? Can the signal go either direction through the pads?

What are the resistor values of the resistor ladder in this product? Passive attenuator alters the freq response b/c cable and amp input are not purely resistive. Customers should know how much alteration will occur with the passive attenuator.

Is this -12dB signal attenuation or -12dB Power attenuation?

My ap4-gm61 has a 4v output, my 4ch amp has a 2v input sensitivity. Will these help?

Common Questions

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Perfect platform for hard-to-find items. Delivery was prompt.

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The product exactly matches the description. Very satisfied with my purchase.

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