# AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)

Analog active subwoofer crossover with selectable frequencies, XLR/RCA I/O and independent sub level control.

- **Seller:** [Analog Audio Lab's store](https://www.lectronz.com/stores/aalab), LES MONTS D AUNAY, Calvados, France
- **Price:** €255.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Audio
- **Country of origin:** France
- **Product page:** https://www.lectronz.com/products/aal-analog-subwoofer-crossover-eco-xlr-rca

## Images

![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNzAsInB1ciI6ImJsb2JfaWQifX0=--596fe0ef3c65f1120358013d047a71918bc49507/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_20260505_093907.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNzQsInB1ciI6ImJsb2JfaWQifX0=--5d6bfa71c3b0776d5ec8ed9913d303dce7eacb7f/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_20260505_093930.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNzgsInB1ciI6ImJsb2JfaWQifX0=--66e2775f65f831b7add18579516f70f63448b5f9/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_20260505_094004.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExODIsInB1ciI6ImJsb2JfaWQifX0=--8db2f509d89f00b7868e401d77458c482c7da2eb/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_20260505_094054.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExODYsInB1ciI6ImJsb2JfaWQifX0=--3e495e45d0d4c28d5bd5db6cf0cc3771fabf2a6b/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_20260505_094152.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExOTAsInB1ciI6ImJsb2JfaWQifX0=--772c922835e8f6dddbe182fa89af2e22b6db523c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF%203D%20-%202026%20-%20Top%20Inside%20view.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExOTQsInB1ciI6ImJsb2JfaWQifX0=--6fe2fd60e25955cec16e55770b6204b4a42bc1ac/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF%203D%20-%202026%20-%20Inside%20view.jpg)
![AAL – Analog Subwoofer Crossover – ECO (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExOTgsInB1ciI6ImJsb2JfaWQifX0=--821f4affd390e8e7138c831cd0a76462a0001ccf/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF%203D%20-%202026%20-%20Top%20view.jpg)

## Description

##What is it?

The **AAL – DIY Analog Subwoofer Crossover – ECO** is a fully analog active low-pass filter designed for subwoofer integration in Hi-Fi, studio and DIY audio systems.

Designed for users who want a simple, musical and effective analog solution without DSP complexity, software setup or digital processing.

This ECO version is housed in a robust PETG enclosure and powered using carefully selected external power and symmetrical supply modules, while preserving AAL’s audio-focused design philosophy.

##Why did you make it?

Many subwoofer systems are either:

- overly complex DSP solutions
- noisy low-cost filters
- difficult to integrate into existing audio systems

Many users simply want clean and controlled bass without DSP menus or software setup.

This crossover was designed to provide a practical, transparent and musical solution for seamless subwoofer integration with precise low-frequency control.

**Features**

- Fully analog active low-pass crossover
- Selectable frequencies: 40 / 50 / 63 / 80 / 100 / 120 Hz
- Cool / Huge bass character adjustment
- “Sweet Spot” sound optimization control
- Independent subwoofer output level adjustment
- XLR and RCA connectivity
- External 24V DC / 2A power supply included
     - Input: 100–240V AC, 50/60 Hz
     - Output: 24V DC / 2A
     - Region compatibility: EU plug (Type C)
     - Compatible with worldwide mains voltage. A plug adapter may be required outside EU regions.

**XLR/RCA Connectivity**

- Left / Right inputs
- Left / Right outputs
- Dedicated subwoofer output

**Typical Applications**

- Hi-Fi subwoofer integration
- Studio monitoring with subwoofer
- DIY speaker systems
- Mobile studio setups
- Analog audio systems requiring simple bass management

##What makes it special?

- No software setup, DSP headaches or menu diving
- Audio-conscious analog design
- Optimized internal wiring and grounding strategy
- Carefully selected components
- Robust 4P6T rotary selector
- Clean, dynamic and controlled bass reproduction

**ECO vs Premium version**

The ECO version prioritizes affordability while maintaining sound quality.

For fixed installations or professional environments, a premium **19" rack version** is available with a custom-designed symmetrical linear power supply and near-silent idle noise performance.

##Why this price?

Built using carefully selected components and hand assembly practices focused on signal integrity, reliability and long-term durability.

##Who did it?

Designed, hand-assembled and individually tested in France by **AAL — Analog Audio Lab**.

*Practical electronics designed to solve real-world problems.*

[analog.audio.lab@gmail.com](mailto:analog.audio.lab@gmail.com)