Product Overview
IPX5:4
4 x 1250 w multi‑channel installation dsp class‑d amplifier
- 4 x 1250 W multi-channel installation DSP amplifier with digitally controlled PFC supply.
- Fully integrated DSP with high-resolution 96 kHz processing and FIR Drive.
- Dante and OCA integration via OMNEO with fallback options.
- Parallel, bridged and parallel-bridged drive modes with 70/100V/140V/200V and low impedance operation
- High efficiency Eco Rail technology for lower operating costs
IPX series are dedicated amplifiers for fixed install application such as e.g. stadiums, arenas, houses of worship, concert halls, theaters and other applications that require high‑power multichannel amplifiers with sophisticated speaker processing. The integrated DSP can run either in 48 kHz or true 96 kHz including FIR Drive. Besides analog inputs also Dante and OCA via OMNEO network inputs are available. Comprehensive fallback options allow redundant scenarios.
Each channel can be individually operated in low impedance mode, or 70V/100V Direct Drive mode. By bridging also 140V/200V Direct Drive is available. By the possibility to parallel two channels and parallel‑bridge four channels all kind of loudspeakers can be driven.
Due to the digitally controlled interleaved PFC supply reliable operation is ensured even under challenging mains supply situations. Reactive current is limited to a minimum, which reduces costs for mains installations and mains fusing in the installation.
In case of idle mode or light mode operation IPX series amplifiers automatically switch to a lower Eco Rail further reducing operating costs. In Eco Mode the amplifiers stay fully functional and supervised.
While IPX series amplifiers are fully integrated in IRIS‑Net, a OLED display on the front panel allows quick local control and supervision of the amplifier.
The connectivity of IPX series amplifiers is optimized for fixed install applications.
| Low-Z mode: Load Impedance | 2Ω | 2.7Ω | 4Ω | 8Ω |
| Normal Mode, all channels driven | 1300 W | 1500 W | 1250 W | 1250 W |
| Bridged | - | - | 2600 W | 2500 W |
| Parallel | 2500 W | 3000 W | 2500 W | 1250 W |
| Parallel-Bridged | 5200 W | 6000 W | 5000 W | 5000 W |
| Direct Drive Mode: Nominal Voltage | 70 V | 100 V | 140 V2 | 200 V2 |
| Maximum Output Power1 | 1250 W | 1250 W | 2500 W | 2500 W |
| Number of amplifier channels | 4 |
| Maximum Output Voltage,Normal mode, per channel | 150 Vpeak |
| Maximum Output Current,Normal mode, per channel | 41 Apeak |
| AMPLIFIER | |
| Voltage Gain | |
| Low-Z mode, ref. 1 kHz | 32.0 dB, adjustable 20.0 — 44.0 dB |
| Direct Drive mode | 33.2 / 36.2 / 39.2 / 42.2 dB for 70 / 100 / 140 / 200 V |
| Input Sensitivity | |
| Low-Z mode, Max. Output Voltage | 10.7 dBu (2.66 V), adjustable -1.3 — 22.7 dBu |
| Direct Drive mode | 6 dBu (1.55 V), fixed |
| THD3 dB below max, AES17, 1 kHz | < 0.05 % |
| DIM 1003.15 kHz, 15 kHz | < 0.15 % |
| IMD-SMPTE,60 Hz, 7 kHz | < 0.05 % |
| Crosstalkref. 1 kHz, 12 dB below Max, 8 Ω | < -80 dB |
| Frequency Response,ref. 1 kHz, analog in to speaker out | 20 Hz to 20 kHz (±0.5 dB) |
| Damping Factor,20 Hz to 200 Hz, 8 ± | > 400 |
| Output Stage Topology | Class D, fixed frequency |
| Signal to Noise Ratio Amplifier | |
| A-weighted, analog input | 112 dB |
| A-weighted, digital input | 115 dB |
| Output Noise | |
| A-weighted, analog input | < -70 dBu |
| A-weighted, digital input | < -73 dBu |
| CONNECTIVITY | |
| Analog Audio Input/Thru | |
| Type | 2 x 6-pin Euroblock, male |
| Maximum Input Level | +21 dBu |
| Input Impedance, active balanced | 20 ㏀ |
| Reference level equal to digital input | +21 dBu for 0 dBFS |
| Speaker Output | 1 x 8-pin Euroblock, 6mm, female |
| GENERAL | |
| Power Consumption | |
| Rated power consumption (see BTU table) | 700 W |
| ⅛ Maximum Output Power at 4 Ω | 900 W |
| Idle Mode (no input signal) | 75 W |
| Standby Mode | < 15 W |
| Dimensions(W x H x D), mm | 483 x 88.1 x 514.2 |
| Weight | 14.3 kg (31.5 lb) |
| Shipping Weight | 16.5 kg (36.4 lb) |
| DIGITAL SIGNAL PROCESSING | |
| Sampling Rate | 48 kHz / 96 kHz, OMNEO/Dante synchronized |
| Signal delay/latencyAnalog In to Speaker Out, 48 kHz/96 kHz | 0.70 ms / 0.53 ms |
| Dante Network Latency | typ. 1.00 ms |
| Signal Processing | |
| User EQ | 12 filters per channel, selectable as PEQ, LoShelv, Hi-Shelv, Lo-ShelvQ, Hi-ShelvQ, HiPass, Lo-Pass & Notch; 2 filters of them with additional asymmetric filter type |
| User Delay | 0 to 2000 ms per channel (units: µs, ms, s, cm, m, inches, feet) |
| Array EQ | 5 filters per channel, selectable as PEQ, LoShelv, Hi-Shelv, LoShelvQ, HiShelvQ, Hi-Pass, Lo-Pass & All-Pass |
| Array Delay | 0 to 500 ms per channel (units: µs, ms, s, cm, m, inches, feet) |
| Speaker EQ | 10 filters per channel, selectable as PEQ, LoShelv, Hi-Shelv, Hi-Pass, Lo-Pass & All-Pass |
| Speaker X-Over | Hi-Pass, & Lo-Pass per dB channel, 6/12/18/24/30/36/42/48 dB Bessel/ Butterworth, 12/24/48 Linkwitz-Riley; Alignment Delay, 0 to 20 ms per channel |
| Speaker FIR | Up to 1025 taps, Linear Phase Filter, Linear Phase Brickwall X-Over |
| Speaker Limiters | Peak Anticipation Limiter & RMS/TEMP Limiter per channel |
| Other Functions | Source Selection & Mix, Level, Mute, Polarity, Sine & Noise Generator, Pilot Tone Generator & Detection, Level Meters, Impedance Measurement & Load Monitoring |
| Memory | |
| DSP Presets | 1 factory preset + 20 user presets |
| Speaker-Pool Presets | 30 speaker settings |
| Source Supervision & Fallback | Pilot Tone supervision at Analog & OMNEO/Dante inputs, switchover to alternative Source Selection |
| CONNECTIVITY | |
| Network | |
| Type | 2 x Neutrik EtherCON/RJ45, redundant PRIMARY/SECONDARY |
| General | 1000base-T/100base-TX, integrated switch |
| Network Audio Inputs | 8 channels, 48/96 kHz, OMNEO/Dante format |
| Network Audio Outputs (Monitor) | 2 channels, 48/96 kHz, OMNEO/Dante format |
| Mains Input | 1 x Neutrik powerCON-HC |
| GPIO Control Port | |
| Type | 1 x 8-pin Euroblock, male |
| Ports & Operating Modes | 3 x GPIO, switchable Analog In/Digital In/Digital Out |
| Analog Input Range | 0 V to +13 V, 40 ㏀ input resistance |
| Digital Input Limits | ON: < 1.5 V / OFF: > 2.0 V, internal Pull Up (10 ㏀) |
| Digital Outputs | ON: Output switched to GND, max. 200 mA OFF: Open Collector (40 ㏀ to GND) |
| Reference Voltage Output | +10 V, max. 200 mA, supervised, short circuit protected |
| READY/FAULT contact | Galvanic isolated relay, max. 30 VDC/500 mADC |
| GENERAL | |
| User Interface | |
| Display | Black/white OLED 256 x 64 |
| Front panel indicators | 4 x status LEDs (POWER, STANDBY, FAULT, OMNEO) |
| Front panel operating elements | 3 buttons (UP, ENTER, DOWN) |
| Rear panel indicators | 1 x status LED (STATUS) |
| Rear panel operating elements | Mains Switch |
| Power Requirements | 100 V to 240 V, 50 Hz to 60 Hz AC |
| Power Supply Topology | Switching Mode Power Supply with digital controlled Power Factor Correction |
| Protections | Audio Limiters, High Temperature, DC, HF, Short Circuit, Back-EMF, Peak Current Limiters, Inrush Current Limiters, Turn-on Delay, Mains Circuit Breaker Protection, Mains Over-/Under voltage Protection |
| Cooling | Front-to-rear, temperature controlled fans, supervised |
| Ambient Temperature Limits | +5 °C to +40 °C (+40 °F to +105 °F) |
| IEC Protection Class | Class I (grounded) |
| Electromagnetical Environment | E1, E2, E3 |
| Color | Black |
