Lab Gruppen E12:2 - 1200 Watt Amplifier with 2 Flexible Output Channels for Installation Applications

Product Overview

The Lab Gruppen E 12:2 is a 1,200-watt, 2-channel Energy Star certified installation amplifier designed for commercial AV deployments requiring reliable mid-range power output across Lo-Z (2–16Ω) and Hi-Z (70 V) channels in a 1RU chassis. Delivering 2 x 600 W per channel, the E 12:2 is well suited for driving paired loudspeakers, stereo zones, or independent dual-zone speaker systems in conference rooms, training spaces, and commercial buildings where energy efficiency and long-term reliability are priorities for facilities management.

Product Description

The E 12:2 provides 1,200 W of total amplifier output across two independently configurable channels, each delivering 600 W at constant voltage 70 V or at low impedance (2, 4, or 8 ohms) via the rear-panel RSL mode switch. The per-channel flexibility means the amplifier can simultaneously drive a 70 V ceiling speaker circuit in one area and a direct-drive low-impedance loudspeaker in another, without external transformers or hardware modifications. This makes the E 12:2 a compact, single-box solution for small-to-medium dual-zone installations.

Like all E Series amplifiers, the E 12:2 is built on Lab Gruppen's IDEEA (IntelliDrive Energy Efficient Amplifier) Class-D platform, which achieves operating efficiency above 80% and satisfies Energy Star certification requirements through low mains current draw and sub-1 W auto-standby mode. The Rail Sense Limiter (RSL) monitors output rail voltages per channel in real time, adjusting limiting dynamically to reduce clipping and protect connected loudspeakers under varying load conditions or asymmetric configurations.

Rear-panel per-channel level trimmers and signal-present LEDs enable straightforward field commissioning. A built-in 50 Hz high-pass filter is switchable per channel for speaker protection in distributed systems. The GPIO connector provides contact-closure GPI and GPO for control system integration. Energy Star compliance means the E 12:2 powers down to standby automatically after 20 minutes without input signal, then restores operation when signal returns.

Key Features

• 1,200 W Total Output, 2 Channels — 2 x 600 W at 2Ω, 4Ω, 8Ω Lo-Z, and 2 x 600 W at 70 V Hi-Z per channel.
• Energy Star Certified — Operating efficiency >80%; auto-standby <1 W; auto-power-on on signal return.
• Per-Channel Lo-Z / Hi-Z Configuration — Each channel independently configurable for low-impedance or 70 V constant-voltage via rear-panel RSL switch.
• IDEEA Class-D Output Stage — IntelliDrive technology for high efficiency and low thermal output in the rack.
• Rail Sense Limiter (RSL) — Dynamic per-channel rail voltage limiter reduces clipping and protects loudspeakers.
• Asymmetric Channel Loading — 1,200 W total distributable unequally across channels.
• Built-In 50 Hz High-Pass Filter — Per-channel switchable from rear panel for speaker protection.
• GPIO Integration — Contact-closure GPI/GPO for control system power management.
• 1RU Form Factor — Compact 19" rack-mount; standard IEC mains input; designed and engineered in Sweden.

Typical Applications

• Conference room and boardroom stereo or dual-zone audio
• Huddle room and small meeting space speaker systems
• House of worship fill and overflow zone amplification
• Government and commercial building PA and paging
• Training room and multi-purpose room audio
• Retail and commercial space background music

Technical Specifications

Frequently Asked Questions

Q: What is the difference between the E 12:2 and the E 8:2?

A: The E 12:2 delivers 600 W per channel (1,200 W total), while the E 8:2 delivers 400 W per channel (800 W total). The E 12:2 is appropriate when more headroom or higher SPL is needed per zone. Both support Lo-Z and 70 V Hi-Z operation per channel.

Q: Does the E 12:2 support 100 V constant-voltage systems?

A: The E 12:2 supports 70 V Hi-Z operation. For 100 V system compatibility, the higher-wattage E Series models (E 20:2, E 40:2, etc.) include explicit 100 V support. Verify the system voltage requirement before specifying.

Q: Can the two channels operate independently in different impedance modes?

A: Yes. Each channel has its own rear-panel RSL switch for independent Lo-Z or Hi-Z mode selection, allowing mixed configurations within a single installation.

Q: Is external signal processing required?

A: The E 12:2 is an analog installation amplifier without onboard DSP. EQ, crossover, or delay processing should be provided by an upstream DSP processor or digital audio system.

Q: What is the Energy Star standby consumption?

A: Standby consumption is less than 1 W. The amplifier enters standby automatically after 20 minutes without input signal and restores operation when signal returns.

Q: Is a warranty available on the E 12:2?

A: Lab Gruppen provides a 3-year warranty on E Series amplifiers covering components and factory workmanship. An extended 10-year warranty program is available through authorized dealers.