NCDI1000 vs NCT475A-U-US — Compare
Crown Audio CDi 1000 Two Channel 500W Power Amplifier vs Crown Audio CT475 Four-Channel 75W Power Amplifier
The CDi 1000 is a heavyweight installed-sound powerhouse with dual channels, extensive DSP, and extreme power scaling from 2Ω to 140V systems; the CT475 is a compact four-channel workhorse optimized for live, studio, and touring use with efficient Class D/AB hybrid technology. Choose the CDi 1000 for complex fixed installations requiring deep processing and multi-impedance flexibility; choose the CT475 for mobile rigs, venues, and studios where compact footprint and four independent channels matter.
No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.
Crown Audio CDi 1000 Two Channel 500W Power Amplifier
Crown Audio CT475 Four-Channel 75W Power Amplifier
Specs side by side
| Crown Audio CDi 1000 Two Channel 500W Power Amplifier | Crown Audio CT475 Four-Channel 75W Power Amplifier | |
|---|---|---|
| Price | $1,803.00 | $1,582.00 |
| Brand | Crown | Crown |
| Wattage | 300W to 500W | 1W to 300W |
| Condition | New | New |
Why choose Crown Audio CDi 1000 Two Channel 500W Power Amplifier
- ✓ Scales to 1,400W bridge-mono and handles 70V/140V distributed systems natively
- ✓ Onboard DSP with crossovers, EQ, delay, limiting, and 20 presets eliminates need for external processors
- ✓ Exceptional damping factor (>500) and 100 dB SNR for transparent, controlled reproduction
- ✓ 2 RU form factor and lightweight construction suit both installed and mobile applications
Why choose Crown Audio CT475 Four-Channel 75W Power Amplifier
- ✓ Four independent channels vs. two, ideal for multi-zone or surround applications
- ✓ DriveCore efficiency exceeds 90% with Class AB sonic character and no fan noise
- ✓ Convection-cooled design keeps footprint minimal in 1U or smaller chassis
- ✓ Lighter weight and narrower form factor optimized for touring and live-performance transport
Frequently asked questions
Which amplifier is better for a small venue with a simple stereo PA system?
The CT475 is lighter and more tour-friendly, but if you need only two channels, the CDi 1000's DSP, higher power, and load flexibility make it more versatile for a venue's evolving needs. Choose the CDi 1000 if the venue will grow; choose the CT475 if portability and four independent channels are priorities.
Can either amplifier handle 70V/100V installed speaker systems directly?
The CDi 1000 handles 70V and 140V natively without adapters. The CT475 requires an optional XFMR 4/8 transformer to work with 70V/100V systems, making it less convenient for distributed installations.
What is the power difference between them for a typical 4-ohm speaker load?
The CDi 1000 delivers 500W per channel at 4Ω. The CT475 delivers 75W per channel at 4Ω—nearly seven times less power. The CDi 1000 is for high-output installations; the CT475 suits smaller rooms, monitors, or secondary zones.
Which one avoids external signal processing equipment?
The CDi 1000 includes onboard crossovers, EQ, delay, limiting, and presets, reducing your outboard gear budget. The CT475 is a pure power amplifier with no DSP, requiring an external processor or mixer for signal shaping.