description Blue Spark SL Overview
The Blue Spark SL is a large-diaphragm cardioid condenser microphone designed for vocals, speech, and musical instruments in project and home studios. It uses discrete Class A electronics and provides selectable low-frequency filtering and attenuation for controlling rumble or recording louder sources. Its fixed cardioid pattern emphasizes sound from the front, and it connects through XLR while requiring phantom power from recording equipment.
help Blue Spark SL FAQ
What is the Blue Spark SL best suited for?
The Spark SL is a large-diaphragm cardioid condenser built for vocals, speech, guitars, drums, and other home-studio sources. Its discrete Class A electronics give it a broader studio role than the small-diaphragm AKG P170.
Does the Blue Spark SL have a low-cut filter?
Yes, it has a selectable 100 Hz high-pass filter that reduces low rumble and excess proximity bass. It also includes a -20 dB pad for louder sources. [Blue's product specifications](https://www.bluedesigns.fr/products/spark-sl/) list both controls.
What power and connection does the Blue Spark SL need?
It is an XLR condenser that requires +48 V phantom power from an interface or mixer. The published specification gives a 20 Hz to 20 kHz frequency response and a cardioid pattern. [Blue's official specifications](https://www.bluedesigns.fr/products/spark-sl/) confirm the power and response.
How is the Blue Spark SL different from the AKG P170?
The Spark SL uses a large diaphragm and is voiced for vocals, speech, and general studio recording, while the P170 uses a 1/2-inch small diaphragm for instruments and overheads. Both are cardioid condensers with 20 Hz to 20 kHz specifications, but their form factors and intended placements differ.
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