Via G. Saragat, 4 - 20834 - Nova Milanese (MB)  
+39 0362-571116
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Hoellstern Delta 12.2- Hi-End Digital Audio Amplifiers

Delta 12.2-DSP - Amplificatore 2x2 DSP - 2 x 2200 W @ 8 ohm

HIGH Performance Digital Amplifier -  
Hoellstern-Delta-7.2Hoellstern-delta-rear low    The HardwareSince its market launch in 01/2004, the Hoellstern® amplifier platform has been a trend-setting pioneer in the professional sound industry. It's not for nothing that competitors have been trying for years to emulate the technical properties of Hoellstern® amplifiers. With our no- compromise design and an equally uncompromising component selection we combine huge output powers
with a high efficiency in a compact two-channel construction.Output currents of up to 125 Apeak and voltages of up to 190 Vpeak add to the load independent, strikingly audiophile and neutral sound: a synonym for Hoellstern® amplifiers. Double output power with halved impedance provides stress-free limiter settings and gives the sound technician at the console a feeling of ultimate control over a PA system. Setting new standards, all Hoellstern® amplifiers have an active power factor correction (PFC) circuit integrated into their super performance switching power supply.Together with the intelligent software-controlled power management (iCVP®- intelligent Constant Voltage Power), this technology allows huge output powers and a safe operation at surprisingly small mains fusings with 10 A (class B circuit breaker). The broad AC mains input voltage range ensures constant high output powers even with AC mains fluctuations and AC mains frequency variations. For a longterm stressless and maintenance-free operation in rough environments, the electronic modules have been sealed against soil and humidity. A dependable cold start temperature of minus 40 °C documents the high quality standard of Hoellstern® amplifiers. In the event of failure, sophisticated protection circuits (LIMIT / LF / HF / TEMP) with intelligent software algorithms will gently limit the hardware without cutting out abruptly. Their high efficiency, relatively moderate heat generation, low heatsink temperatures and outstanding overall quality of workmanship are reflected in high reliability and a long service life. ALSO AVAILABLE with out DSP 
DELTA 12.2 Audio AmplifierThe DELTA 12.2 amplifier is a high-performance two-channel power amplifier.    With their two individual audio inputs and two individual audio outputs Hoellstern® amplifiers are perctly suited for all applications.The high sound quality, the extraordinary flexibility and the great overall quality are lasting guarantors for a future-proof investment which will amortise quickly and make the daily routine of professional sound technicians a lot easier.
Hoellstern® Amplifier Technology:  
• 2 individual inputs and 2 outputs • 0.000 ms latency, ZeroLatencyTM technology • Exemplarily load stable high-current audio outputs • 2 x 2.2 kW at 8 ohms2 x 4.4 kW at 4 ohms2 x 8 kW at 2 ohms• Comprehensive protective functions • Damping factor 1500 at 8 ohms • Strikingly audiophile, high-resolution, neutral sound • Amazingly well-controlled bass response • Digitally controlled amplifier setup • Robust RS-485 network (and RS-232 interface) • Deterministic Hoellstern® network protocol • Active mains relieving PFC circuit • Rugged iCVP® switching power supply technology • Intelligent AC mains management for 10A breaker  • AC mains voltage from 75 V to 265 V (> 100 VDC) • AC mains frequency between 40 Hz and 100 Hz • Very high overall efficiency • Maintenance-free design  • Reinforced Neutrik® PowerCON® mains socket • Reinforced high-current Neutrik® SpeakON® • Full-metal Neutrik® XLR sockets and plugs • Sturdy, vacuum-cleanable spring steel air filter • Black powder-coated full-metal housing • All heatsinks screwed to housing for reinforcement • Mechanically protected rotary controls and LEDs • 2 RU housing weighting only 10 kg (22 lbs) • 2 RU housing of only 29 cm depth (from rack ears) • Replaceable 2 RU rack ears • Top-grade temperature-controlled fans • Front sucking fans • Top-grade rear-panel switches (ball mechanism) • Safe operation in damp and soiled ambience • Permissible start-up temperature -40 °C • All functions internally controlled by firmware • All technologies successfully introduced since 2004 • DSP loudspeaker management as option available • Engineered and made in Germany  


  • {tab= Specifiche Overview |grey}
    {tab= Specifiche Tecniche |grey}
    Number of individual inputs 2  
    Number of individual outputs 2  
    Output voltagepeak 190 V  
    Output current cut-out limitpeak (with 5 retries) 125 A  
    Output powers and permissible nominal loads Output C1  Output C2   
    8 ohm [Bridge 8 ohm] 2200 W [8800 W] 2200 W  
    4 ohm [Bridge 4 ohm] 4400 W [16000 W] 4400 W    
    2.7 ohm [Bridge 3.2 ohm] >6000 W 6000 W  
    2.0 ohms >8000 W 8000 W  
    THD at 1 kHz at 4 ohms and -3 dB     < 0.03 %  
    Frequency response 20 Hz to 20 kHz at 8 ohms at -15 dB        + / - 0.5 dB (typically + / - 0.05 dB)  
    Damping factor at 8 ohms, 100 Hz > 1000, typically 1500 comprising the SpeakON® connectors, typ. 5 mohms    
    Latency without DSP or bypass (connector to connector) 0.000 ms, ZeroLatencyTM technology   
    Signal limiter yes  
    LF limiter - HF limiter Yes, reduces the gain gently  
    {tab= Specifiche Meccaniche |grey} 
    Larghezza:       19" (483 mm) 
    Altezza: 2 rack U (88 mm)
    Profondità: 290 mm interno alette rack 
    Peso:  10 Kg 
    AC mains supply input   1 x Neutrik® PowerCON® 
    Amplifier output connectors     2 x 4-pin high current Neutrik® SpeakON® 

    {tab= Software |grey}

    Hoellstern Software hoellstern Konfigurator-k2_1b 
    {tab= Accessori |grey}



Audio Network S.r.l.

Via G. Saragat, 4
20834 - Nova Milanese (MB)


Tel: +39 0362 571116


P.I. 12779640155