Audia Flight FLS Audio Expansion Board - Balanced (XLR)

The Audia Flight FLS XLR Expansion Board adds two additional balanced XLR inputs (labeled IN10 and IN11 on the host unit's display) to an FLS series component. Balanced connections reject common-mode noise across longer cable runs, which makes this board the right choice for adding a second XLR source (a balanced DAC, streamer, or tape loop) to an FLS-based system.

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 XLR expansion board installs in A bay. It pairs cleanly with the FLS Phono or FLS RCA board (both B bay). It cannot coexist with the FLS DAC board, which also occupies A bay.

Other FLS Optional Boards

• Audia Flight FLS DAC Board (A bay)
• Audia Flight FLS MM/MC Phono Board (B bay)
• Audia Flight FLS Audio Expansion Board, Single Ended (RCA) (B bay)