NXFMR4CH vs NXLI2500-0-US — Compare
Crown XFMR-4 Four Channel Transformer vs Crown Audio XLi 2500 Two-channel 750W Power Amplifier
The XFMR-4 is a passive transformer for converting standard amplifier outputs to 70V/100V constant-voltage systems, while the XLi 2500 is an active power amplifier that drives speakers directly. Choose the XFMR-4 if you need to integrate existing amps into distributed speaker systems; choose the XLi 2500 if you need a standalone amplifier for direct speaker control.
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Crown Audio XLi 2500 Two-channel 750W Power Amplifier
Specs side by side
| Crown XFMR-4 Four Channel Transformer | Crown Audio XLi 2500 Two-channel 750W Power Amplifier | |
|---|---|---|
| Price | $640.00 | $719.00 |
| Brand | Crown | Crown |
| Wattage | — | 500W and More |
| Condition | New | New |
Why choose Crown XFMR-4 Four Channel Transformer
- ✓ Converts standard amplifiers to 70V/100V constant-voltage output for large distributed installations
- ✓ Compact single rack unit footprint with four independent channels
- ✓ Minimal insertion loss (≤1.0 dB) and flat frequency response (±1.0 dB, 70 Hz–15 kHz)
- ✓ Straightforward installation with pluggable barrier block connectors
Why choose Crown Audio XLi 2500 Two-channel 750W Power Amplifier
- ✓ 750W per channel at 4 ohms—standalone amplifier with no external transformer needed
- ✓ Low distortion (< 0.5% THD) and high damping factor (>200) for tight, controlled bass
- ✓ Flexible inputs (RCA and XLR) and outputs (Speakon and binding posts) for any pro setup
- ✓ Built-in protection circuits and excellent SNR (>100 dB) for clean, reliable operation
Frequently asked questions
What's the main difference between these two products?
The XFMR-4 is a passive impedance-matching transformer that adds 70V/100V capability to existing amplifiers, while the XLi 2500 is a complete active power amplifier. They serve different needs: one retrofits amps into distributed systems, the other is a standalone amp.
Can I use the XLi 2500 with the XFMR-4?
Yes, you could connect the XLi 2500 into an XFMR-4 if you needed to convert its output to constant-voltage for a distributed system, though the XLi 2500 alone can drive speakers directly at standard impedances without a transformer.
Which is better for a touring PA system?
The XLi 2500 is better for touring because it's a complete amplifier ready to power speakers immediately with its 750W per channel output and robust protection circuits. The XFMR-4 is a support component for integrating existing amps into permanent installations.
What frequencies does the XFMR-4 handle?
The XFMR-4 maintains flat response from 70 Hz to 15 kHz (±1.0 dB), which covers the vocal and midrange spectrum but rolls off below 70 Hz; it's optimized for speech and music in distributed systems, not full-range subwoofer integration.