Efficient Blaze by Sonance PowerZone Connect 122D – 125W 2-Channel Dante DSP Amplifier for Compact Installations
The Blaze by Sonance PowerZone Connect 122D is a 125W DSP-enabled Class-D amplifier with two output channels and integrated Audinate Dante™ audio-over-IP networking — all housed in the smallest chassis in the PowerZone Connect lineup. At just 44 × 220 × 213 mm and 2 kg, it is the most compact Dante-enabled install amplifier in the range, purpose-built for single-zone or dual-zone applications where full DSP capability and network audio matter more than raw wattage.
Built on the same Pascal UMAC™ Class-D platform and PowerZone™ Control web app as every other model in the family, the PowerZone Connect 122D delivers 60W per channel in Lo-Z or 125W in Hi-Z, with automatic power-sharing and full-matrix DSP. For integrators across Africa deploying Dante-networked audio into individual meeting rooms, small retail units, hotel suites, or single-zone background music systems, the 122D provides professional-grade amplification and network intelligence in a footprint that disappears into tight equipment closets, furniture cavities, or half a rack space.
Design and Construction of the Blaze by Sonance PowerZone Connect 122D
The PowerZone Connect 122D uses the shortest chassis in the 1U family. Dimensions are 44 × 220 × 213 mm (1.7″ × 8.7″ × 8.4″) — over 100 mm shallower than the 254 and 504 models — at a weight of just 2 kg (4.4 lbs). Two 122D units sit side by side in a single 19″ rack space, or you can pair one with any other half-rack model to create a mixed configuration. Adhesive rubber feet are included for freestanding desktop or shelf placement, with optional rack ears, extension plates, and full rack support kits available separately.
The amplifier runs on Pascal’s UMAC™ Class-D output stage — the same full-bandwidth PWM modulator used across the entire PowerZone Connect range. The UREC™ universal mains switch-mode power supply features Power Factor Correction (PFC) and an integral standby converter, accepting 100–240V AC at 50–60 Hz. Power consumption at full load is just 75W — the lowest draw in the family.
Protection circuits cover short circuit, DC fault, under-voltage, thermal, and overload conditions. Standby consumption sits below 0.5W, meeting both ErP and Energy Star standards. The unit is UL listed and backed by Blaze’s five-year warranty. A built-in wireless access point (WAP) enables cable-free setup via Wi-Fi from any browser.
Performance and Applications for the PowerZone Connect 122D
In Lo-Z mode, each of the two output channels delivers 60W into 4Ω or 8Ω loads — enough for a pair of ceiling speakers or compact surface-mount cabinets per channel at comfortable background music and speech levels. Switch to Hi-Z and the unit reconfigures as a single 125W channel driving a 70V or 100V distributed speaker line, covering a corridor, open-plan area, or single-zone paging loop.
Automatic power-sharing redistributes up to 125W across both output channels proportionally. In a two-zone Lo-Z setup, the zone with heavier loading draws more than its base 60W while the lighter zone scales back — keeping the system balanced without manual intervention.
The integrated Audinate Dante™ interface is the headline feature that separates the 122D from the standard 122. It provides low-latency, lossless digital audio transport over standard Ethernet, allowing the amplifier to receive streams from any Dante-enabled source on the network. This is particularly valuable in distributed deployments — hotels with an amplifier in every floor’s service cupboard, corporate campuses with a 122D in each meeting room, or retail chains with head-office audio management — where running analogue feeds from a central rack to every endpoint would be impractical and expensive.
The built-in PowerZone™ Control web app provides the same full-matrix DSP found on the larger models: multizone routing, input mixing, priority and ducking for paging, restriction, parametric EQ on inputs and outputs, high-pass filtering, speaker presets, delay, sine generator, Wall-S1 controller configuration, and Master/Slave S/PDIF linking. Audio performance remains strong: signal-to-noise ratio exceeds 106 dB (A-weighted), THD+N stays below 0.05% across 20 Hz – 20 kHz, and frequency response holds within +0/−0.25 dB into an 8Ω load.
Typical applications include individual meeting rooms and boardrooms, hotel guest-floor service closets, small retail units and pop-up shops, single-zone lobbies and reception areas, day spas and treatment rooms, classroom audio in education facilities, and any distributed Dante deployment where a dedicated amplifier is needed at each endpoint.
Specifications – Blaze by Sonance PowerZone Connect 122D
- Total System Power: 125W
- Output Channels: 2 (Lo-Z) / 1 (Hi-Z)
- Output Power (Lo-Z, 4Ω/8Ω): 2 × 60W
- Output Power (Hi-Z, 70V/100V): 1 × 125W
- Powershare (up to): 1 × 125W across all channels
- Amplifier Topology: Pascal UMAC™ Class-D, full-bandwidth PWM modulator
- Output Voltage: 70Vp / 140Vpp (unloaded)
- Signal-to-Noise Ratio: > 106 dB (A-weighted, 20 Hz – 20 kHz, 8Ω load)
- THD+N (typical): < 0.05% (20 Hz – 20 kHz, 8Ω, 3 dB below rated power)
- Frequency Response: 20 Hz – 20 kHz (+0/−0.25 dB, 8Ω, 3 dB below rated power)
- Power Consumption: 75W
- Standby Consumption: < 0.5W (ErP & Energy Star compliant)
- Power Supply: UREC™ universal mains SMPS with PFC
- Operating Voltage: 100–240V AC, 50–60 Hz
- Operating Temperature: 0–40°C
Connectivity and Control
- Dante™ Audio: Integrated Audinate Dante™ AoIP interface (native input)
- Analogue Inputs: 4 × RCA (unbalanced)
- Digital Audio: 1 × stereo S/PDIF input/output
- Network: RJ45 Ethernet port + built-in Wi-Fi / WAP (for PowerZone™ Control web app and Dante™)
- GPIO: Configurable general-purpose input/output (Euroblock connector)
- Outputs: 2 × Lo-Z (Euroblock) or 1 × Hi-Z
- S/PDIF Link: Master/Slave cascading between multiple amplifiers
- DSP Control: PowerZone™ Control web app (built-in) — full-matrix routing, multizone, input mixing, priority/ducking, restriction, parametric EQ, HPF, speaker presets, delay, sine generator, Wall-S1 configuration
Protection and Safety
- Protection Circuits: Short circuit, DC fault, under-voltage, thermal, overload
- Safety Certifications: UL listed audio equipment
- Energy Compliance: ErP 1275/2008/EC and Energy Star
- Warranty: 5 years
Physical Dimensions and Mounting
- Form Factor: Half-rack width, 1RU height (shortest depth in the 1U range)
- Dimensions (H × W × D): 44 × 220 × 213 mm (1.7″ × 8.7″ × 8.4″)
- Weight: 2 kg (4.4 lbs)
- Mounting Options: Adhesive rubber feet included; optional rack ears, extension plates, and full rack support kits (available separately)
Conclusion
The Blaze by Sonance PowerZone Connect 122D is the smallest and lightest amplifier in the entire PowerZone Connect range — and the most affordable entry point into Dante-enabled amplification. With 125W of total system power, two output channels, integrated Dante™ networking, and the full PowerZone™ Control DSP suite, it packs genuinely professional capability into a 2 kg half-rack chassis that is just 213 mm deep.
For integrators across Africa, the 122D shines in distributed Dante deployments where a dedicated amplifier sits at each audio endpoint — hotel floors, individual meeting rooms, classroom AV stations, or remote retail locations. It draws just 75W from the mains, sits on a shelf or in half a rack space, and connects to the entire Dante ecosystem over a single Ethernet cable. Combined with other PowerZone Connect models in the same project, it gives you granular control over every zone in the building while keeping hardware costs, power draw, and physical footprint to an absolute minimum.
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About Blaze by Sonance.
Blaze by Sonance (formerly Blaze Audio) was founded in Copenhagen, Denmark in 2020 as a brand of Pascal A/S, a global leader in professional amplifier electronics. Acquired by Sonance in May 2025, Blaze brings Danish precision engineering and a focused product lineup of high-performance amplifiers and sound reinforcement loudspeakers to the installed sound market.
