Audia Flight FLS Audio Expansion Board - Single Ended (RCA)
The Audia Flight FLS RCA Expansion Board adds two additional single-ended RCA inputs (labeled IN6 and IN7 on the host unit's display) to an FLS series component. This is the cleanest way to add a second analog source (a CD player, tuner, tape deck, or second turntable feed) to an FLS-based system without giving up the existing input set.
Compatible Models
- Audia Flight FLS 1 Fully Balanced Stereo Preamplifier
- Audia Flight FLS 9 Fully Balanced Stereo Integrated Amplifier
- Audia Flight FLS 10 Fully Balanced Stereo Integrated Amplifier
Installation Slot (A Bay / B Bay)
Every FLS series component (FLS 1, FLS 9, FLS 10) has two removable rear-panel bays where optional boards install: A bay (top) and B bay (bottom). Each FLS optional board has a fixed bay assignment based on its panel layout, and up to two boards can be installed at once, one per bay.

FLS optional board bay assignments:
- FLS DAC Board: A bay only
- FLS XLR Expansion Board: A bay only
- FLS MM/MC Phono Board: B bay only
- FLS RCA Expansion Board: B bay only
Boards that share a bay are mutually exclusive: DAC and XLR cannot both be installed (both A bay), and Phono and RCA cannot both be installed (both B bay). Any A-bay board pairs cleanly with any B-bay board.
This RCA expansion board installs in B bay. It pairs cleanly with the FLS DAC or FLS XLR board (both A bay). It cannot coexist with the FLS MM/MC Phono board, which also occupies B bay.
Other FLS Optional Boards
Made with care
Great value
Elegant design
Quality materials
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.