---
product_id: 52438377
title: "IMG Stageline 21.2840 Passive Level Attenuator"
brand: "monacor"
price: "€ 111.74"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.it/products/52438377-img-stageline-21-2840-passive-level-attenuator
store_origin: IT
region: Italy
---

# Gold-plated contacts for pristine signal RCA plug to RCA inline jack 3-step attenuation (10/15/20 dB) IMG Stageline 21.2840 Passive Level Attenuator

**Brand:** monacor
**Price:** € 111.74
**Availability:** ✅ In Stock

## Summary

> 🎛️ Master your sound, own the stage.

## Quick Answers

- **What is this?** IMG Stageline 21.2840 Passive Level Attenuator by monacor
- **How much does it cost?** € 111.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/52438377-img-stageline-21-2840-passive-level-attenuator)

## Best For

- monacor enthusiasts

## Why This Product

- Trusted monacor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for the Road:** Solid metal construction delivers durability and reliability for DJs and musicians on the move.
- • **Pure Signal Integrity:** Gold-plated contacts guarantee zero signal loss and crystal-clear audio fidelity.
- • **Plug & Play Simplicity:** RCA plug to inline jack design ensures effortless integration with your existing setup.
- • **Power-Free Performance:** Completely passive design means no batteries or power supply needed—always ready to perform.
- • **Precision Volume Control:** Fine-tune your amplifier’s input with 3-step attenuation for flawless sound balance.

## Overview

The IMG Stageline 21.2840 Passive Level Attenuator is a robust, metal-bodied audio accessory designed to reduce excessive line levels by 10, 15, or 20 dB. Featuring gold-plated RCA connectors for optimal signal clarity and a passive design requiring no power, it enables precise volume control and maintains pristine sound quality—ideal for professional musicians, DJs, and audio enthusiasts seeking reliable, on-the-road performance.

## Description

Product Description Monacor img Stage Line passive level attenuators for attenuating excessive line levels in order to fully utilise the complete adjustment range via the volume control of the amplifier. features attenuation to be adjusted in 3 steps: 10 dB/15 dB/20 dB. RCA plug to RCA inline jack. Gold-plated contacts. No power supply required.The passive level attenuators appear to be solid and heavy, provide an absolutely neutral sound in practical applications which will be highly appreciated by every musician and DJ, especially for on-the-road applications and on stage. Box Contains 1x Passive Level Attenuator

Review: Great performance and value - Excellent performance. I have not measured at all, but from ear I cannot detect any degradation in sound . I use the maximum switch and it works brilliantly. Great value
Review: Solid and precise construction - Although expensive, you get what you pay for. Highly recommend!

## Features

- For attenuating excessive line levels in order to fully utilise the complete adjustment range via the volume control of the amplifier
- Rca plug to rca inline jack
- Gold-plated contacts
- No power supply required
- Attenuation to be adjusted in 3 steps: 10 db/15 db/20 db

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0057G44WM |
| Best Sellers Rank | 30,152 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 2,447 in Microphone Accessories |
| Body material | Metal |
| Compatible Devices | Amplifier |
| Connector | RCA/RCA |
| Country Produced In | China |
| Customer Reviews | 4.0 4.0 out of 5 stars (239) |
| Date First Available | 13 Feb. 2012 |
| Finish type | Matte |
| Global Trade Identification Number | 04007754222197 |
| Included components | RCA Cable |
| Item Weight | 40 g |
| Item model number | ILA-1020 |
| Manufacturer | IMG Stageline |
| Material Type | Metal |
| Package Dimensions | 9.1 x 3.9 x 1.2 cm; 40 g |
| Scale Length | inches |
| Set Name | Set of 2 |

## Product Details

- **Brand:** Monacor
- **Colour:** n.a.
- **Item weight:** 0.04 Kilograms
- **Material:** Metal
- **Model name:** ILA-1020

## Images

![IMG Stageline 21.2840 Passive Level Attenuator - Image 1](https://m.media-amazon.com/images/I/61bL+LJ9VdL.jpg)

## Questions & Answers

**Q: Please, it's not clear to me whether they are sold in pair or 1 only? Thanks.**
A: Hi, I ordered a single item and got a pair delivered, so they seem to be sold in stereo pairs. As mentioned they are about 50mm long so positioning them in the middle of a pair of short Phono extension leads stops them getting damaged on the back of some equipment.

**Q: are they directional?**
A: I think they are directional.  I've not cut into one to check but a multimeter suggests: direct connection between the grounds at either end; single resistor between the signal connectors at either end; 3 switchable resistors between the grounds and signal connectors at the plug end.  Therefore the plug should go in the amplifier and the cable from your cd player or whatever should go in the socket end.  That way the cd player is seeing a relatively easy load and the amplifier is seeing a reduced signal at one of the 3 switched levels.

**Q: Are these a voltage divider with a series and parallel resistor for each attenuator value and what is their input impedance?**
A: You are not able to get inside the casing without breaking it. I would assume they are a basic set up of a series/parallel resistor divider. Other makes I have purporting to do similar are basic dividers to attain a fixed attenuation.

**Q: Perplexing description - 'appreciated by every musician and DJ, especially for on-the-road applications and on stage' What about home Hi-Fi?**
A: I use them with my reasonably good Roksan Kandy amplifier as I found that there was a very small usable rotation of the volume control basically in between 25 to quarter to, this made it difficult to get the correct level as it's either too quiet or too loud, these attenuators give you a far greater rotation of the volume control making it far easier to get the correct level - Also some CD players can overload the input section of some amps these also will prevent that, reducing distortion, you will not lose any power by using these - I found no reduction in quality & my hi-fi if far easier to use now - A few people use them who subscribe to well known UK hi-fi magazine with good results from reading the magazine forum, that is where I first read about these devices.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great performance and value
*by P***P on 31 January 2025*

Excellent performance. I have not measured at all, but from ear I cannot detect any degradation in sound . I use the maximum switch and it works brilliantly. Great value

### ⭐⭐⭐⭐⭐ Solid and precise construction
*by A***R on 5 January 2024*

Although expensive, you get what you pay for. Highly recommend!

### ⭐⭐⭐ Faulty On Receipt
*by L***C on 31 October 2014*

1 attenuator worked the other did not, so they were returned as faulty, bear in mind these are also quite long so if clearance at the back of the unit you are using them with is tight beware - As I was somewhat unimpressed with the quality I actually bought more expensive ones which enables more of the travel of the volume pot on my Roksan Kandy amp to be used - If you are using better than budget gear you can do better than these I feel, I may have been unfortunate with 1 being faulty, & overall they may be OK.

## Frequently Bought Together

- IMG Stageline 21.2840 Passive Level Attenuator
- Sony STRDH190.CEK 2 Channel Amplifier with Phone Input and Bluetooth - Black

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-28*