Emotiva BasX A3+ Three-Channel Power Amplifier

The Emotiva BasX A3+ is a three-channel power amplifier that’s built for folks who want to upgrade the power/feed to their front speakers (Left, Center, Right) in a home theater, or run a 3.1 / LCR setup with better headroom and fidelity. It’s part of Emotiva’s BasX line, which gives a lot of performance for the money. Emotiva Audio Corporation+2www.av.com+2

Key Features & Specifications

Power Output
• 140 W RMS per channel into 8 Ω (when all three channels are driven) Emotiva Audio Corporation+1
• 200 W per channel into 4 Ω (at 1 kHz, all channels driven) Emotiva Audio Corporation+1
• When just two channels are driven, you get ~150 W into 8 Ω, ~250 W into 4 Ω. thelittleaudiostore+1
Topology and Build
• Class A/B amplification with a heavy-duty linear power supply. Uses a toroidal transformer. Emotiva Audio Corporation+1
• Balanced (XLR) and unbalanced (RCA) inputs for each of the three channels. Emotiva Audio Corporation+1
• Solid binding posts (five-way) to allow good speaker cables, bananas/spades, etc. quantumav.co.uk+1
Audio Performance
• Frequency response: ~20 Hz to 20 kHz at rated power, pretty flat. thelittleaudiostore+1
• Broader bandwidth: (–1.8 dB) down to ~10 Hz, and up to ~80 kHz. thelittleaudiostore+1
• THD + Noise: < ~0.1% into 8 Ω at rated power, and very low (≈ <0.02%) under many conditions. Signal-to-Noise Ratio (8Ω): ~112 dB. thelittleaudiostore+1
Other Features
• Remote trigger input/output (to auto-turn on/off with other gear) Emotiva Audio Corporation
• Automatic switching between 115 V / 230 V AC power – so it works internationally. Emotiva Audio Corporation
• Protection features: against overheating, speaker shorts, ground faults, etc. Emotiva Audio Corporation
Physical / Mechanical
• Size: about 17″ wide x 4″ high x ~15½″ deep (unboxed) for the unit itself. thelittleaudiostore+1
• Weight: ~25 lbs (≈ 11-12 kg) unboxed; more when boxed.

Description

The BasX A3+ is a three-channel power amplifier that delivers 140 watts/channel into 8 Ohms and 200 watts/channel into 4 Ohms, all channels driven, with a rated THD+N of <0.02%, and an A-weighted S/N ratio of 112 dB. The BasX A3+ features a heavy-duty linear power supply, high-quality Class A/B amplification, transparent fault protection, and a trigger input and output.

The BasX A3+ offers both individual unbalanced RCA inputs and balanced XLR inputs for each channel, so it can be used with almost any preamp or processor, and any AVR that has preamp outputs. Audiophile-grade five-way speaker terminals accept banana plugs, spade lugs, or bare wire. These features combine to enable the BasX A3+ to deliver true audiophile performance and sound quality at an amazingly affordable price.

The BasX A3+ is the ideal choice to power a 3.1 channel system, to upgrade the front three channels of a surround sound receiver, or for anywhere where three channels of great-sounding, clean power are needed.