K1 8000 amplifier stabilized at 11 volts

Steg

Discontinued

Amplifier Type
1 channel
Crossover
Yes
RMS Power 4 Ohm
2200 Watt
Signal-to-Noise Ratio
104 dB S/N
RMS Power 2 Ohm
1x4200 Watt
Total Harmonic Distortion
0,8% % THD
RMS Power 1 Ohm
1x8000 Watt
MAX Power Consumption
100 Ampere
Size
460 x 60 x 255 mm
Weight
7 Kg

GTTrading is proud to present the first car amplifier stabilized at 11 volts and the most powerful ever conceived, developed and manufactured entirely in Italy: STEG K1|8000.

Beyond the high power of the K1|8000, the feature that makes it unique is the use of a switching power supply (completely developed in GTTrading laboratories) in "current doubler in current mode" this system allows to control cycle by cycle the output current of our Switching power supply, in order to say STOP to the impedance limitations of your speaker, and to reduce by 70% the breaks caused by low impedances. Thanks to this system we are able to deliver 8000Watt RMS at 1 ohm, at 0.5 and also at 0.15.

Another feature of the STEG D Class amplifier line is the very low distortion they are able to maintain even at very low loads. Thanks to the LOW TOLERANCE OF PASSIVE COMPONENTS AND THE CAREFUL LAYOUT DESIGN, which reduce power losses to a minimum and make performance excellent. The components used are of selected type and of particular value, low tolerance resistors and capacitors are used, polyester coupling capacities with high linearity and low thermal drift and made specifically for audio applications. The choice of each individual device has been studied down to the smallest details, each element finds its best placement in the delicate electrical balances of the system in order to ensure exceptional performance, invariable over time.

TECHNICAL SPECIFICATIONS

High-Current car power amplifier monofonico| 1x2200w RMS @4 ohm | 1x4200w RMS @2 ohm | 1x8000w RMS @1 ohm | 1x8000w RMS @0.5 ohm |
Integrated electronic Crossovers LP | Integrated subsonic filter | INTELLISPEED forced cooling system | Stabilized power supply up to 11 Volt Battery

PROTECTION SYSTEM
The K1|8000 integrates two a protection systems one global managed by microprocessor that has the task of performing, continuously, the control of the following functions:

  • Output short circuit
  • Direct current across the speakers
  • Temperature rise
  • Muting in the power-on transient
  • Power supply voltage out of range
  • Intelligent control of fans "INTELLISPEED"

The numerous "sensors" present on the circuit send a continuous data flow that is processed at very high speed. Thanks to the dedicated software, the protection system reacts instantly, intervening appropriately and signaling any malfunctions through the LEDs placed on the control panel. The other protection system is managed by the AT90PWM2 microprocessor the same one that generates the PWM signal that is able to regulate the power supply up to bringing it to values close to 0Vcc in case of final stage failure or overload.

GR.I.P.S. - Ground Improved Path System
In order to avoid the generation of ground loops in the connection between the car radio and the power amplifier, in the past numerous expedients and systems have been adopted including the separation of the amplifier ground from that of the vehicle battery. This system proved to be particularly effective and reliable so much so that the major Hi-Fi car manufacturers adopted it using it in their products and using it to this day. In recent years, with the advent of electronic injections this system has begun to prove insufficient as it has greater effectiveness against disturbances of electrical origin but is less efficient against those of an electromagnetic nature. Steg has designed the GR.I.P.S. system capable of reducing both types of disturbance, alternative to balanced lines, and with the advantage of not degrading sound quality, maintaining compatibility with existing connections. The GR.I.P.S. circuitry isolates each input ground from the others, preventing the generation of loops even in multi-amplified, multichannel implementations and also reduces installation time while ensuring maximum sound quality.

INTELLISPEED - Intelligent cooling fans power regulator
The efficiency of the D'' Class cooling system is among the highest on the market. The extraordinary dissipation characteristics are the result of innovative design choices, including the dynamic forced ventilation system Intellispeed controlled by the microprocessor. The high dissipative power of the finned profile is combined with the effectiveness of the 6 fans integrated in the lateral tunnels, positioned to channel cold air to the most appropriate points. The integrated sensors continuously monitor the thermal/electrical conditions of the transistors and diodes, communicating with the microprocessor in real time. The control system, interpreting the readings, reacts with intelligent fan management, activating them when the heatsink temperature exceeds 40°C. With ventilation inserted, the software controls its flow, varying the rotation speed of the fans according to the acquired parameters to always guarantee the best working conditions of the D'' Class.

Power 4 ohm stereo Watt RMS @ 11 - 14.4 Volt 100 x 2
Power 2 ohm stereo Watt RMS @ 11 - 14.4 Volt 200 x 2
Maximum threshold of operation in class A Watt RMS @ 11 - 14.4 Volt 50 x 2
Minimum load impedance Ohm 2
Damping factor @ 4 ohm - 1 Khz - > 36
Input sensitivity Volt RMS 0.4 - 5.5
Input impedance Kohm > 5
Frequency response Hz -3 dB @ 1W 5 - 250.000
Linearity in band dB @ 1W, 20 - 20.000 Hz +- 0.2
Negative feedback rate dB 0
Harmonic distortion (THD) % @ 50% max power, 1KHz < 0.8
Intermodulation distortion (DIM) % @ 50% max power, 1KHz < 0.12
Signal/Noise ratio dB @ 10W (A weighted) > 101 (> 104)
Channel separation dB @ max power, 1KHz 73
Power supply voltage range Volt 10.5 - 16
Maximum stereo absorption @ 4ohm A -11/14.4 Volt 50 / 38
Maximum stereo absorption @ 2ohm A - 11/14.4 Volt 78.5 / 60
Absorption at rest, no signal A @ 14.4 Volt 3.2
Fuse (external) A 100
Dimensions mm 460 x 60 x 255
Weight Kg. 7

Discontinued