MADE IN RICHMOND, VA

Phoenix Speaker Terminals in Black for AC650

Now with a new FIR profile. Six powered channels. AirDSP control over Wi-Fi. Engineered to get the most out of your speakers.

Phoenix Speaker Terminals in Black for AC650
ABOUT THE PRODUCT

Connects up to 3 audio channels on each Phoenix Speaker Terminal. Included 2 sets of 2 Phoenix Speaker Terminals in Black - 4 total.

  • For up to 12 AWG raw cable - with out Ferrules
  • Also ideal for AWG 14/2.5mm² Ferrules(recommended) - Insulated Copper Crimp Connectors - use square ferrule crimpers for best results. 
REVIEWS
SPECIFICATIONS
Inputs
  • Bluetooth® via AAC, AptX-HD and more
  • USB Audio 24-bit / 192 kHz
  • Optical (S/PDIF) up to 24-bit / 192 kHz
  • Coaxial (S/PDIF) up to 24-bit / 192 kHz
THD+N

0.073505% @ 1 kHz

Signal-to-Noise Ratio

100 dB @ 36 W into 4 Ohms

Amplification
  • 54 W into 4 Ohms per channel
  • 40 W into 8 Ohms per channel
Optical Output
  • 2 channels up to 24-bit / 192 kHz
  • Up to 50-foot cable at 24-bit / 96 kHz
RCA Output DAC
  • 2 channels analog outputs
  • 112 dB SNR · 2.1 V RMS
  • Up to 50-foot RCA cable
Power Supply

Onyx: 25.2 V DC · 10 A · 252 W

Deluxe edition / White: 24 V DC · 8.3 A · 200 W (CUI Inc., ultra-low-noise)

DSP Profiles

FIR Profile · 24-bit / 48 kHz (recommended)

All AirDSP modules including FIR Builder and custom FIR capabilities.

Rich Profile · 24-bit / 96 kHz

All AirDSP modules, excluding FIR capabilities.

Pure Profile · 24-bit / 192 kHz

Core AirDSP modules at the highest sample rate.

Max Channel Programming

Simultaneous programming of 1–10 channels over Wi-Fi

Channel Invert

1–10 channels

Channel Delay Time

0–50 ms

IIR Crossovers

High Pass and Low Pass 20–20 kHz

Butterworth 6, 12, 18, 24, 30, 36, 42, 48 dB/Oct

Linkwitz-Riley 12, 24, 36, 48 dB/Oct

Bessel 6, 12, 18, 24, 30, 36, 42, 48 dB/Oct

FIR

Engine: 1,500 taps per channel · 8 channels (6 powered + 2 RCA)

Crossover types: Linkwitz-Riley · Invisible · NTX-Pro · Linear-phase

Tools: Phase Linearizer · REW import/export · rePhase

Presets

Stores: Full DSP state, now including FIR and Groups.

Switching: Near-instant between presets. Slightly longer when the preset includes FIR.

15-Band Equalizer

Live tuning of 1–10 channels

Frequency · Gain · Q · RTA mode

Dimensions

9″ × 7″ × 2.6″

Weight

3 lb 11 oz

WiFi

2.4 GHz

Design your system

Wondering if it'll drive your speakers?

Each driver gets its own channel and crossover, so 50 watts goes further than it sounds. See which drivers fit, then build your system and see exactly how loud it gets.

The catalog

Find your drivers

Browse 100+ drivers that run on the AC650. Filter by size, brand, impedance, or cone material.

Browse drivers
The builder

Build your system

Pick a 2-way or 3-way layout, drop in a driver per way, and see the loudness, headroom, and cost.

Build a system
COMPARE EDITIONS

What changes between editions.

Dimension Onyx Deluxe edition White
Finish Black anodized Black anodized White powder-coated
Power supply 25.2 V · 10 A · 252 W 24 V · 8.3 A · 200 W ultra-low-noise (CUI) 24 V · 8.3 A · 200 W ultra-low-noise (CUI)
Powered channels 6 × 50 W 6 × 50 W 6 × 50 W
AirDSP control Included, all platforms Included, all platforms Included, all platforms
Warranty 1 year 1 year 1 year

Common questions

Is 50 W per channel enough for my build?

The AC650 is sized for active speaker builds, desktop and studio systems, and efficient drivers in normal listening rooms. For high-SPL builds or low-sensitivity woofers, use the RCA or optical line outputs to feed external amplification while keeping AirDSP control of the full chain.

Why is there no analog input?

The AC650 runs an end-to-end digital signal path. For turntables or analog preamps, run a phono preamp into a USB audio interface or optical converter, and the AC650 handles the rest.

Are Phoenix connectors a problem?

Phoenix connectors are compact, secure, and serviceable. They keep the rear panel clean while supporting multi-channel active builds. We recommend ferrules on cables up to 14 AWG, or bare wire up to 12 AWG directly into the terminal blocks.

Is this too advanced for me?

Use the AC650 like a normal amplifier on day one. When you're ready to tune, AirDSP opens crossovers, delay, parametric EQ, REW import, and FIR. Start at any depth, go deeper at your pace.

How reliable is the AirDSP app?

AirDSP ships on iOS, Android, macOS, and Windows. All four platforms get free updates. Support comes directly from the team in Richmond, Virginia.

What's the return policy?

30 days. If there are any issues whatsoever, the replacement is free. We'll work with you until you're fully satisfied.

Still have a question? Contact us