High Power and Extraordinary Efficiency
The H3000 delivers 350 wattsThorough Circuit Protection per channel into 8 ohm loads. The H-series amps are approximately twice as efficient as conventional types. This means that for the same power output you only need half the power normally required...
High Power and Extraordinary Efficiency
The H3000 delivers 350 wattsThorough Circuit Protection per channel into 8 ohm loads. The H-series amps are approximately twice as efficient as conventional types. This means that for the same power output you only need half the power normally required from the AC supply. The amps themselves run cooler for significantly improved reliability.
Superior Sound Quality
The best possible sound quality through careful component selection, circuit design, layout and construction. They respond instantaneously to transients of virtually any magnitude without distortion, for extraordinarily crisp, punchy sound - particularly in the bass region.
Stereo, Bridged Mono, and Dual Mono Modes
This model can be used in the bridged mono mode for extra high power: 900 watts, all into 4-ohm loads. An extra margin of flexibility with a dual mono mode which allows a single input signal to drive two independent speaker systems. In the dual mono mode the power rating for each speaker is the same as in the stereo mode.
MediaLink™ Network Compatible
15-pin MONITOR/REMOTE terminals on the rear panels of all three H-series models provide direct compatibility with MediaLink™ protocol networks for state-of-the-art computer based system control and monitoring - an important advantage in large systems with many amplifiers in remote locations. The H-series amplifiers allow power and channel mute control as well as status monitoring of per-relay output level, clipping, output on/off, and heat sink temperature. Level control is also possible with the addition of an optional circuit board.
Thorough Circuit Protection
Power-on muting isolates the speaker outputs for several seconds after the power is turned on. This prevents the power-on voltage surge from reaching the speakers and allows the amplifer circuitry to stabilize before operation begins. DC sensing circuitry shuts off the outputs if a DC voltage greater than +/= 2 volts is detected at the output terminals. Thermal protection shuts down the system if the heat sink temperature exceeds 90°C, and a power limiter reduces power output if a fault results in a speaker load of less than 1 ohm. Protection, clip/limit, and thermal LEDs indicate the type of fault that has occurred.
Variable-speed Forced-air Cooling
A comprehensive cooling system for optimum reliability and safety. Dual variable-speed fans automatically maintain internal temperatures within a safe operating range.
Calibrated Input Attenuators
The input attenuators feature precisely-calibrated detents and smooth, noise-free control. This configuration allows accurate, repeatable levels settings while providing perfect level matching between channels.
Both balanced XLR and balanced phone jack input terminals are provided. Heavy-duty binding-post type terminals ensure solid, reliable speaker connections.
Pin-1 Ground Switch
This thoughtful feature lets you lift pin 1 of the XLR-type connectors from ground to interrupt ground-loops when they occur, achieving quiet, hum-free operation.
Audio & Video
|Power Output Level||f=20 Hz- 20 kHz, THD+ N < / = 0.1% Stereo RL= 8 OHM 350 W RL=4 OHM 450 W Bridge RL=8 OHM 900W|
|Frequency Response||0 dB+ 0, -1 dB; f=10 Hz-50 kHz RL=8 OHM, Po= 1 W|
|Power Bandwidth||10 Hz-50 kHz, Half Power, THD+ N=0.1%|
|Total Harmonic Distortion||(THD + N) f=20 Hz-20 kHz, Half Power Stereo RL=8 OHM, 4 OHM < / = 0.07% Bridge RL=8 OHM < / = 0.07%|
|Intermodulation Distortion||Half Power, f=60 Hz: 7 kHz, 4:1 Stereo RL=8 OHM, 4 OHM < / = 0.07% Bridge RL=8 OHM|
|Channel Separation||Half Power, RL= 8 OHM > / = 65 dB, f=20 Hz-20 kHz ATT. max. Input 600 OHM shunt > / =80 dB, f=1 kHz|
|Residual Noise||12.7 kHz LPF < / = -70 dB; ATT min. IHF- A network < / = -80 dB; ATT min.|
|Signal-to-noise ration||Input 600 OHM shunt 12.7 kHz LPF 101 dB IHF-A network 106 dB|
|Damping Factor||> 200; RL=8 OHM, f =1 kHz|
|Slew Rate 8ohm Full Swing||Stereo+/=30 V/ mms Bridge +/=50V/mms|
|Sensitivity||(ATT max.) Rated Power into 8 OHM +4 dB|
|Voltage Gain||(ATT max.) 32 dB|
|Input Impedance||30 k OHM (balance), 15 k OHM (unbalance)|
|Indicators||Power (Stand-by) (Red) Temp; Heatsink Temp > / = 85 deg. C (185 deg. F) (Red; flashing) Protection (Mute) (Red) ClipL/ Limit (Red) Output Signal x 2 (Yellow) Input Signal x 2 (Green)|
|Protection||Power SW On/Off muting Heatsink temp > / = 95 deg. C (203 deg. F)|
|PC Limiter||RL < / = 1 OHM|
|Limiter Circuits||Comp; THD > / = 0.5% (f=1 kHz)|
|Fan Circuit||-50 deg. C (122deg. F)~ 70deg. C (158deg. F)- Low-speed - variable- Hi- speed|
|Controls||Front Power SW; Push on/ Push off Attenuator; 31-position dB calibrated Rear Mode SW; Stereo/ Bridge/ Parallel Pin-1 GND SW; On/Off|
|Power Requirement||UL & Canadian Models: 120 V, 60 Hz General Model:230 V, 50/60 Hz British Model: 240 V, 50 Hz|
|Power Consumption||400 W/500 VA|
|Dimensions (W x H x D)||480 x 100.5 x 455.8 (mm) 18-7/8" x 3-15/16" x 17-15/16" Panel height: 88 mm (3-1/2") Depth behind front panel: 407 mm (16")|
|Weight||17.5 kg (38 lbs. 9 oz.)|
|Connectors||Input XLR- 3-31 type x 2 XLR-3-32 type x 2 1/4" Phone (balance) x 2 Output 5-way binding posts x 2 Monitor & Remote D-SUB 15 pin female|
|Monitor and Remote||Monitor Pre Relay Output Level x 2 Clip/Limit Indicator x 2 Output On Indicator x 2 Temp Indicator Remote Control Muting (Output Relay) x 2 Power Off|