# AAL – Analog Subwoofer Crossover – 19" (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://lectronz.com/stores/aalab), LES MONTS D AUNAY, Calvados, France - **Price:** €460.00 (EUR, before shipping and taxes) - **Availability:** In stock - **Categories:** Audio, Amplifier - **Country of origin:** France - **Product page:** https://lectronz.com/products/aal-analog-subwoofer-crossover-19-xlr-rca ## Images ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExMjEsInB1ciI6ImJsb2JfaWQifX0=--303bfa468865d3c767cd3d81dafc2651f7bcd99c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Frontpanel.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExMjUsInB1ciI6ImJsb2JfaWQifX0=--535630b025072d1d79fe5ddd222ae1b1fd097a0c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Frontpanel-Left.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExMjksInB1ciI6ImJsb2JfaWQifX0=--8c716b10518fdd73b86d1886fd44a6f33c47cbd8/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Pots.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExMzMsInB1ciI6ImJsb2JfaWQifX0=--565102e9bf48517cf852494fdc8097fb35ac233b/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Power.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExMzcsInB1ciI6ImJsb2JfaWQifX0=--2321aa391ef4e2053848010698565f7871b250bc/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Rearpanel.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNDEsInB1ciI6ImJsb2JfaWQifX0=--774d105fe55785f3e3d76b8a20956b70a2eb1858/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-RCA_XLR.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNDUsInB1ciI6ImJsb2JfaWQifX0=--722ee137b742c7b148d50102eed10987c0f3a257/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Text-Rearpanel.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNDksInB1ciI6ImJsb2JfaWQifX0=--10a0d56bac56044fcd9448218c43926ac0bc9a36/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Inside%20Top%20View.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNTMsInB1ciI6ImJsb2JfaWQifX0=--e8ee768a975f624d97c76e2fdf72c6a655e723db/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Audio-Board.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNTcsInB1ciI6ImJsb2JfaWQifX0=--01f1326aade914083b0889033b89bbec78b0a9a5/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-Connectors.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNjEsInB1ciI6ImJsb2JfaWQifX0=--73ecc1fc01eed43cf39e9a35c019efe4fcac3d41/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-4P6T.jpg) ![AAL – Analog Subwoofer Crossover – 19" (XLR / RCA)](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzExNjUsInB1ciI6ImJsb2JfaWQifX0=--baac1846a06dfcf9f3dbbe11ea67fd479cd405bc/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ALPF-2026-PSU-Board.jpg) ## Description ##What is it? The **AAL – Analog Subwoofer Crossover – 19"** is a fully analog active low-pass filter designed for subwoofer integration in Hi-Fi, studio and audio systems. Designed for users who want a simple, musical and effective analog solution without DSP complexity, software setup or digital processing. This PREMIUM version is housed in a customized 19" rack enclosure and powered by an **AAL-designed symmetrical linear power supply** developed specifically for demanding audio applications. The result is exceptionally clean operation, excellent signal integrity and extremely low idle noise. ##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 **Power & Safety** - Supported mains input: 220–240V AC, 50/60 Hz - IEC C14 mains input with integrated fuse protection (T1.25A slow-blow fuse) - IEC C13 power cable included - Internal AAL-designed symmetrical linear power supply - Designed for indoor Hi-Fi and studio use **XLR/RCA Connectivity** - Left / Right inputs - Left / Right outputs - Dedicated subwoofer output **Typical Applications** - Hi-Fi subwoofer integration - Studio monitoring with subwoofer - Active speaker systems - Mobile studio setups - Analog audio systems requiring simple bass management **Included** - Ready-to-use AAL – Analog Subwoofer Crossover – 19" - Integrated AAL symmetrical linear power supply - IEC C13 mains power cable included - Fully assembled and tested unit ##What makes it special? Want simple, musical and analog bass integration? - 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 **PREMIUM vs ECO version** The ECO version features a compact PETG enclosure for portable or flexible setups and prioritizes affordability while preserving the same analog sound philosophy. The 19" PREMIUM version is designed for fixed Hi-Fi or studio installations and features: - Custom symmetrical linear AAL power supply - Improved internal grounding and power distribution - Rack-ready construction for permanent installations - Extremely low idle noise - Enhanced long-term robustness **This first rack unit includes a minor cosmetic imperfection on the rear panel labeling.** A rear-panel labeling issue was carefully corrected using a clean label solution (see product photos). This does **not affect performance, reliability or usability in any way**, and the listed price already reflects this cosmetic defect. ##Why this price? Built using carefully selected components and hand assembly practices focused on signal integrity, reliability and long-term durability. Hand-built in small batches with careful attention to internal wiring, grounding and long-term reliability. ##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)