Custom Cylindrical XLR FMOD™ (Low Pass Filter)
$175.00
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Low Pass Frequency Range Options
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Please Select Channel Option (2 Units Required for Balanced Stereo System)
⚠️ All sales are final. Custom cylindrical XLR units cannot be returned, exchanged, or refunded. Please double-check your system specifications and crossover frequency requirements before placing your order.
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Custom Cylindrical XLR FMOD™ (Low Pass Filter)
Product Details
🇺🇸 MADE IN THE USA 🇺🇸
Standardized at 22K ohms and a -3db frequency point.
Tame harsh high frequencies and dial in precise sub-bass routing with Harrison Labs Custom Cylindrical XLR Low Pass Filters. Built for high-performance audio engineering, these premium passive inline tools are engineered to eliminate unwanted high-frequency hiss, EMI, and bleed, leaving you with a clean, hard-hitting low-end.
Each unit is custom manufactured using top-tier, heavy-duty Switchcraft connectors and housings for maximum durability, pristine shielding, and exceptional contact reliability in demanding studio, live sound, or broadcast environments.
Key Features
Precision High-Cut Filtering: Smoothly rolls off highs and mids to isolate clean bass frequencies for subwoofers, electronic crossovers, or specialized signal routing.
Balanced Mono Architecture: These are true balanced mono XLR units designed to maintain complete signal integrity and maximum common-mode noise rejection over long cable runs.
Standard Orientation: Engineered with a Female Input and Male Output for seamless, plug-and-play placement directly along your signal chain.
Harrison Labs · XLR Series
Crossover Spec Guide
Every XLR inline crossover filter is available at the same standard crossover frequencies as the FMOD series, with no color-band coding. Tap a frequency to see its exact −3dB spec at 10K and 47K ohm loads.
20Hz crossover
high pass only
Low Pass
Not offered at this frequency
High Pass
25Hz @ 10K Ω
17Hz @ 47K Ω
30Hz crossover
high pass only
Low Pass
Not offered at this frequency
High Pass
37Hz @ 10K Ω
26Hz @ 47K Ω
50Hz crossover
Low Pass
54Hz @ 10K Ω
46Hz @ 47K Ω
High Pass
62Hz @ 10K Ω
43Hz @ 47K Ω
70Hz crossover
Low Pass
76Hz @ 10K Ω
64Hz @ 47K Ω
High Pass
87Hz @ 10K Ω
60Hz @ 47K Ω
80Hz crossover
Low Pass
86Hz @ 10K Ω
74Hz @ 47K Ω
High Pass
100Hz @ 10K Ω
68Hz @ 47K Ω
100Hz crossover
Low Pass
108Hz @ 10K Ω
92Hz @ 47K Ω
High Pass
125Hz @ 10K Ω
85Hz @ 47K Ω
150Hz crossover
Low Pass
162Hz @ 10K Ω
138Hz @ 47K Ω
High Pass
187Hz @ 10K Ω
128Hz @ 47K Ω
200Hz crossover
Low Pass
216Hz @ 10K Ω
184Hz @ 47K Ω
High Pass
250Hz @ 10K Ω
170Hz @ 47K Ω
300Hz crossover
high pass only
Low Pass
Not offered at this frequency
High Pass
375Hz @ 10K Ω
255Hz @ 47K Ω
500Hz crossover
Low Pass
540Hz @ 10K Ω
460Hz @ 47K Ω
High Pass
625Hz @ 10K Ω
425Hz @ 47K Ω
1kHz crossover
Low Pass
1.1kHz @ 10K Ω
920Hz @ 47K Ω
High Pass
1.25kHz @ 10K Ω
850Hz @ 47K Ω
2.5kHz crossover
Low Pass
2.7kHz @ 10K Ω
2.3kHz @ 47K Ω
High Pass
3.13kHz @ 10K Ω
2.13kHz @ 47K Ω
3.5kHz crossover
Low Pass
3.78kHz @ 10K Ω
3.22kHz @ 47K Ω
High Pass
4.37kHz @ 10K Ω
2.98kHz @ 47K Ω
6.5kHz crossover
Low Pass
7kHz @ 10K Ω
5.98kHz @ 47K Ω
High Pass
8.12kHz @ 10K Ω
5.5kHz @ 47K Ω
How to read this: the standard crossover frequency shown is the −3dB point, standardized at 22K ohms. Expect an 8% (LP) / 25% (HP) increase at 10K ohms, and an 8% (LP) / 15% (HP) decrease at 47K ohms.
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