Specifications

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TOUR

` SPECIFICATIONS

Summary Specifications

The power ampliﬁer shall be a solid-state four-

channel model employing Class I (BCA

) output

circuitry.

The ampliﬁer shall contain protection from

shorted, open and mismatched loads, general

overheating, DC, high frequency overloads,

under/over voltage, and internal faults.

If an ampliﬁer channel starts to overheat, the

Thermal Level Control (TLC) circuit shall

engage the channel’s input compressor in

an amount proportional to the amount of

overheating, in order to generate less heat. If

the channel becomes too hot for safe operation,

the channel shall shut off, and the Thermal

Indicator for that channel shall illuminate brightly

to alert the user that a state of thermal stress or

overload has caused the channel to shut down.

The front-panel controls shall be a power

switch, Menu/Exit button, Previous button, Next

button, Encoder knob with push button, and a

touch screen color LCD screen. The encoder

knob and button combined with the touch screen

shall allow changes to be made to the ampliﬁer

via the LCD screen.

Rear-mounted controls shall include a reset

switch for the circuit breaker.

The recommended load impedance in Non-

Bridge/Mono mode shall be 1/2/4/8/16 ohms.

The load impedance in Bridge-Mono mode shall be

2/4/8 ohms across Channels 1+2 and/or Channels

3+4. The ampliﬁer shall be safe when driving any

kind of load, including highly reactive ones.

The rear-mounted output connectors for the

Speakon version shall be two high-current 50A

Neutrik SpeakON NL4MLP (mates with NL4FC or

NL4) and one high-current 50A Neutrik SpeakON

NLT8MP (mates with NL8FC). The rear-

mounted output connectors for the Binding Post

version shall be four pairs of high-current, 60A

color-coded 5-way binding posts (for banana

plugs, spade lugs, or bare wire).

The rear-mounted input connectors shall be

a 3-pin female XLR analog input connector for

each channel, and two 3-pin female XLR digital

input connectors that accepts a digital signal in

the AES3 format for Channel inputs 1+2 and 3+4.

The rear-mounted Ethernet connector accepts

an RJ-45 EtherCON connector for HiQnet™,

CobraNet™ and VDrive from a standard network

cable. Built into this connector shall be a yellow

LINK ACTIVITY indicator that shows network

activity, and a green 100Mb indicator that shows

a 100Mb network connection.

The rear-mounted Data indicator shall be a

yeallow LED that indicates data activity. The

rear-mounted Preset indicator shall be a yellow

LED that ﬂashes to signal the number of the

current preset active.

The I-Tech 4x3500HD DriveCore Series shall

be fully compatible with Harman Pro System

Architect, JBL HiQnet Performance Manager,

and the Powered by Crown iOS app. The I-Tech

4x3500HD DriveCore Series shall also be

compatible with CobraNet networks.

Front panels indicators shall include a 4.3”

Color Touch Screen LCD with backlight to

control the ampliﬁer’s setup and operation. A

yellow Bridge-Mode Indicator illuminates when

the ampliﬁer is set to Bridge-Mono mode for

Channels 1+2 and/or Channels 3+4. A Ready

Indicator (one per channel) illuminates when

the channel is initialized and ready to produce

audio output and is off when the ampliﬁer is

in standby mode via the control software, a

green Signal Indicator (one per channel) that

illuminates to indicate the presence of input

signals above -40dBu, a red Clip Indicator that

illuminates when the THD of the channel’s output

signal reaches the onset of audible clipping

and illuminates during Thermal Level Control

(TLC) limiting, a red Thermal Indicator (one per

channel) that illuminates when the channel has

shut down due to thermal stress or overload,

a red Fault Indicator (one per channel) that

illuminates when the ampliﬁer output channel

has stopped operating, a yellow Data Indicator

that ﬂashes during network data activity, a

blue Power Indicator that illuminates when the

ampliﬁer has been turned on and AC power is

available (and ﬂashes when the AC line voltage

is 15% above or below the nominal rated value),

and a green AC Mains Preset Indicator in the

power switch that indicates AC power is preset

at the power cord.

The ampliﬁer shall include onboard BSS

OMNIDRIVEHD DSP with 24-bit conversion and

32-bit ﬂoating-point processing, DSP presets in

ﬁrmware and downloadable, load supervision,

error reporting, and a global power supply with

Power Factor Correction.

The ampliﬁer shall meet or exceed the following

performance criteria.

Input sensitivity for rated output:

adjustable in 0.1V steps from 1.4V to 7.75V.

Voltage gain: 37.9 dB to 23 dB.

Rated output of all four channels driven with

0.35% THD (20Hz to 20kHz): 2000 watts per

channel into 2 ohms, 2000 watts per channel into

4 ohms, and 1900 watts per channel into 8 ohms.

Rated output in Bridge-Mono mode with

Channel 1+2 and Channel 3+4 both in Bridge-

Mono mode and driven at 0.35% THD (20Hz

to 20kHz): 4000 watts into 4 ohms and 4000

watts into 8 ohms.

Frequency Response at 1 watt, 20Hz to 20kHz:

=/-0.25dB.

Signal to Noise Ration below rated power,

A-weighted: greater than 112dB.

Total Harmonic Distortion at full rated power:

less than 0.35%.

Intermodulation Distortion (60Hz and 7kHz at

4:1 , from full rated output to -35dB):

less than 0.35%.

Damping Factor (20Hz to 100Hz):

greater than 5000.

Crosstalk (below rated power, 20Hz to 1kHz):

greater than 80 dB.

Common Mode Rejection (20Hz to 1kHz):

greater than 70dB.

DC Output Offset: less than +/-3mV.

Input Impedance (nominal) 20 kilohms

balanced, 10 kilohms unbalanced.

Maximum Input Level: +15 dBu or +21 dBu,

depending on the input sensitivity.

Latency (analog, digital inputs):

1.13 mS analog, 1.81 mS digital (96kHz).

The ampliﬁer chassis shall be constructed of

aluminum with a durable powder coat ﬁnish

with microprocessor controlled, continuously

variable-speed forced-air ventilation from the

front panel to the back panel

The dimensions of the ampliﬁer shall allow for

19 inch (48.3 cm) EIA standard (RS-310-B)

rack mounting. The ampliﬁer shall be 3.5

inches (8.9 cm) tall, and 16.95 inches (43.1 cm)

deep behind the rack mounting surface.

The ampliﬁer shall weigh 29 pounds (13.1 kg).

The ampliﬁer shall be designated the I-Tech

4x3500HD DriveCore Series.

Regulatory Certifications

The I-TechHD DriveCore Series offers amazing power, light weight and ease of use for touring sound

applications. Unlike other amplifiers, it includes onboard high-definition DSP, a Color Touchscreen LCD

control screen, and a built-in network connection. Modern power amplifiers are sophisticated pieces of

engineering capable of producing extremely high power levels.

Harman Pro Group | 2012

Section:

Harman Pro Group | 2012

Section:

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