Power professional PA speakers with the ultra-efficientAshly EcoTour 1500.4, a 4-channel power amplifier that delivers up to 1500W of power per channel (3000W bridged). The unit incorporates Ashly’s proprietary ultra-efficient D-MAX amplifier technology for the cleanest and most reliable performance with lower power draw. The 1500.4 can power a variety of speaker types including Lo-Z (2, 4, and 8 ohms) to Hi-Z (70 or 100V).

The 1500.4 is 2 RU tall and can be mounted into a standard 19″ rack enclosure. The rear panel features combo XLR-1/4″ inputs and removable Euroblock input connectors and speakON speaker output connectors. Each channel includes a switchable 80 Hz HPF and Clip Limiter. The front panel provides a volume control knob for each channel and comprehensive LED indicators for levels and amplifier status.

At a Glance

• 4-channel, 1500W per channel (2 and 4 ohms)
• Active power factor correction (PFC)
• Low-impedance output (to 2 ohms)
• Direct 70 or 100V output
• Extremely efficient and lightweight
• Neutrik Combo XLR-1/4″ jack and Euroblock input connectors
• speakON speaker output connectors
• Front-panel soft-power switch, defeatable
• Front-panel level controls, fully off = mute, defeatable
• Front-panel LEDs for clip/mute, signal, current, temperature, bridge mode, protect,and front-panel disable
• 80 Hz second-order hi-pass filter per channel (on/off)
• Clip limiter per channel (on/off)
• Input gain settings per channel: 26,32, 38 dB, or 1.4V
• Universal 100 to 240 VAC operation, 50 to 60 Hz,detachable AC connector
• Continuously variable cooling fan
• Protection: inrush current limitation, overtemperature, output short-circuit / overpower, output DC, mains fuse
• Safety/Compliance: cTUVus, CE, FCC Class B, RoHS
• Ashly 5-year warranty

D-MAX TechnologyAshly’s all-new proprietary D-MAX technology brings together smart and cutting-edge amplifier design, a brand-new ultrafast switching power supply with silicon carbide semiconductors and diodes, and intelligent power management to deliver ultimate efficiency.

• When current and voltage are exactly in phase, current demand is reduced and efficiency increased. Dynamic Power Factor Correction tracks current continuously to maintain accurate monitoring and control.
• Silicon carbide semiconductors boost both speed and efficiency and are significantly faster than the old-school pure silicon of the past.
• Traditional silicon semiconductors dont shut off instantly. They have a lag time called Switching Loss, leading to a residual tail current. From an audio-quality standpoint, this makes for a sloppier, less precise sound; from an efficiency standpoint it sucks up unnecessary power.
• Instead, Ashly is pioneering the use of silicon carbide semiconductors. They have unique electrical characteristics that render them able to switch on and off far faster than conventional silicon. The result is an amplifier design thats faster (has better audio fidelity) and is more efficient.

SailFlow Cooling Architecture

• Power amplifiers need cooling. In most amps, heat-reducing airflow takes a convoluted path in and around internal components. Front-to-back, back-to-front, or side-to-side, those nice perforated grilles look simple until you look inside the amp and see the helter-skelter airflow.
• Ashly didnt want cooling air to just wander around inside the EcoTour chassis, so it came up with its unique SailFlow architecture, which directs internal airflow strictly over the areas that generate the most heat, rather than arbitrarily over the whole amp. This keeps the already highly efficient EcoTour Series even cooler and assures reliable, stable operation, even under heavy loads.

Specifications

Amplifier

Performance

Signal Processing

Connectivity

Power

Physical

Packaging Info