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P. 2

AUDIOLAB STEEL SERIES - 

1. OVERVIEW

Steel S7.4

Professional Power Amplifier

Steel S7.4

 is a professional power amplifier with a 

maximum output power of 4 x 670W @ 8-ohm / 4 
x 1030W @ 4-ohm and a maximum bridged output 
power of 2 x 2300W (RMS) @ 8-ohm. With a per-
formance that stands out for its very low distor-
tion and high fidelity, Steel S7.4 is equipped with 
a switching-mode power supply. Precisely thanks 
to the design of its power supply, the amplifier 
allows the peak power to follow the dynamic range 
of the musical program, being able to reproduce 
up to twice the RMS power, without clipping. This 
translates, basically, into peaks with much more dy-
namic range than a conventional-source amplifier. 
As one would expect in amplifiers of this range, the 
whole Steel series is equipped with a very efficient 
ventilation and has a comprehensive section of 
protections, to assure its correct operation in the 
most demanding situations.

Specifications

Output

• 

Rated output power (8-Ohm): 4 x 670W

• 

Rated output power (4-Ohm): 4 x 1030W

• 

Rated output power (Bridge @ 8-Ohm): 2 x 
2300W

Performance

• 

Input impedance: 

• 

Balanced: 20Kohm

• 

Unbalanced: 10Kohm

• 

Input sensitivity: 0.775Vor1.4V

• 

Frequency Response: 20Hz~20KHz

• 

THD: <0.05%

• 

Damping factor (8-ohms) 10Hz-400Hz: >200

• 

Crosstalk (at 1Khz): - 75dB

• 

Signal to noise ratio: >100dB

• 

Slew rate: 20V/us

• 

Voltage gain: 35.5dB

• 

Intermodulation distortion: =/<0.35%

• 

Protections: Thermal, short circuits, no-load, 
on/off muting & RF interference

Connectors & back panel controls

• 

Power supply connector: Interlock In

• 

4 XLR-3 inputs

• 

4 Speakon speaker outputs

• 

Bridge, parallel & input sensibility switch

Physical

• 

Cooling: Two Front-to-back fans, tempera-
ture controlled speed. 

• 

Net Weight: 8 kg. / 17.6 lbs.

• 

Dimensions: 482x227x88 mm. / 19x8.9x3.5 
in.

English version

Summary of Contents for S10.2

Page 1: ...P 1 AUDIOLAB STEEL SERIES S7 4 S10 2 S13 4 S15 2 Professional Power Amplifier USER MANUAL...

Page 2: ...eries is equipped with a very efficient ventilation and has a comprehensive section of protections to assure its correct operation in the most demanding situations Specifications Output Rated output p...

Page 3: ...uipped with a very efficient ventilation and has a comprehensive section of protections to assure its correct operation in the most demanding situations Specifications Output Rated output power 8 Ohm...

Page 4: ...is equipped with a very efficient ventilation and has a comprehensive section of protections to assure its correct operation in the most demanding situations Specifications Output Rated output power...

Page 5: ...s is equipped with a very efficient ventilation and has a comprehensive section of protections to assure its correct operation in the most demanding situations Specifications Output Rated output power...

Page 6: ...te for a long time protect the horn will not be burned and will automatically control the input signals when the amplifier ir overheat ed to make the amplifier reduce heating and use more safe 4 Profe...

Page 7: ...not expose the amplifier in the fume high humidity high temperature and dust accumulation place and use 4 Do not put this amplifier sidelong or upside down use it in a good air flow environment 5 Whe...

Page 8: ...D will light Turn on the amplifier within three seconds the amplifier is ready to work the LED will shine When finish start or the problem is removed the LED will estinguish and resume working normall...

Page 9: ...e is cor rect or not if the voltage is wrong it could damage the amplifier please ensure the device be connected to the power supply with ground to use Signal input The input interface connects to the...

Page 10: ...n when M1 dial switch faces up which means CH1 is parallel to CH2 when it faces down which means it is off Key switch function when key switch faces up which means CH1 is bridge to CH2 when it faces d...

Page 11: ...P 11 AUDIOLAB STEEL SERIES Mono connection Bridge connection English version...

Page 12: ...oblem is removed the LED will estinguish and resume working normally Clip LED When the output signal distortion of the corresponding channel exceeds 1 the LED will light because of the signal level is...

Page 13: ...des the output by connecting the SPEAKON connector Circuit breaker When amplifier overloaded cause by the small load impedance of the amplifier or the continuous input signal the button of the circuit...

Page 14: ...DGE output socket output must use the volume control of CH1 to adjust the volume PARALLEL mode make CH1 input signal by CH1 and CH2 output socket output The input socket of CH2 is no effect Channel s...

Page 15: ...if the product damages or has failure except for not within the warranty range and the individual reasons mentioned below and be confirmed by our technical department that the errors are not caused by...

Page 16: ...our service center and the product is sent back to Name Phone No Date repair by the customer For the requirements of going out for warranty or maintenance all the trip expenses are paid by you Our com...

Page 17: ...P 17 AUDIOLAB STEEL SERIES Note English version...

Page 18: ...protecciones para asegurar su correcto funcionamiento las situaciones m s demandantes Especificaciones Salida Potencia de salida 8 Ohm 4 x 670W Potencia de salida 4 Ohm 4 x 1030W Potencia de salida P...

Page 19: ...on una comprehensiva secci n de protecciones para asegurar su correcto funcionamiento las situaciones m s demandantes Especificaciones Salida Potencia de salida 8 Ohm 2 x 1000W Potencia de salida 4 Oh...

Page 20: ...iva secci n de protecciones para asegurar su correcto funcionamiento las situaciones m s demandantes Especificaciones Salida Potencia de salida 8 Ohm 4 x 1220W Potencia de salida 4 Ohm 4 x 1670W Poten...

Page 21: ...iva secci n de protecciones para asegurar su correcto funcionamiento las situaciones m s demandantes Especificaciones Salida Potencia de salida 8 Ohm 2 x 1520W Potencia de salida 4 Ohm 2 x 2300W Poten...

Page 22: ...n mico en tiempo real A su vez adapte la se al y los requisitos de carga a las necesidades de su equipo para evitar cualquier posibilidad de recalentamiento 3 L mite de tensi n Cada canal de entrada c...

Page 23: ...resente manual para evitar descargas el ctricas incendios o que el equipo sufra da os irreparables 2 No coloque objetos pesados incluso el ampli ficador sobre el cable de corriente ya que podr a produ...

Page 24: ...ndicadores LED FLT Cuando se active la protec ci n del circuito se encender el indicador LED Particularmente cuando haya recalentamiento en el disipador t rmico o cuando se detecte voltaje CC Presione...

Page 25: ...imentaci n Antes de utilizar el amplificador verifique que el rango de voltaje de entrada sea el correcto De lo contrario el equipo puede sufrir da os irreparables Entrada de se al La interfaz de entr...

Page 26: ...anal 1 es puente del canal 2 deslizado hacia abajo el interruptor est apagado Interruptor de modo Modo MONO Los dos canales funcionan de forma independiente La se al de entrada del canal 1 es por la s...

Page 27: ...P 27 AUDIOLAB STEEL SERIES Conexi n Mono Conexi n puente Versi n Espa ol...

Page 28: ...encen dido se apagar el indicador LED y el equipo reanudar sus funciones Indicadores LED CLIP Si la distorsi n de la se al de salida de un canal es mayor a 1 se encen der el indicador LED para se alar...

Page 29: ...plificador causada por una impedancia de carga m nima o la se al de entrada continua el bot n del disyuntor saltar de inmediato y apagar el amplificador como sistema de protecci n Si presiona el bot n...

Page 30: ...del conector de salida Utilice el control de volumen del canal 1 para regularlo a gusto Modo PARALELO parallel La se al de entrada del canal 1 viene del puente de los conectores de salida de los canal...

Page 31: ...durante ese plazo el producto se da ase o no funcionase de forma adecuada y el departamento t cnico confirmase que dicho inconveniente no se genero como conse cuencia de un uso inadecuado de la unida...

Page 32: ...nual Nombre Tel fono Fecha La cobertura de la garant a incluye la repa raci n del producto pero los gastos de env o deber n ser abonados por el cliente La empresa no se responsabiliza por los da os di...

Page 33: ...P 33 AUDIOLAB STEEL SERIES Notas Versi n Espa ol...

Page 34: ...P 34 AUDIOLAB STEEL SERIES FOR MORE INFO ON THIS PRODUCT PLEASE CHECK WWW TEC SHOW COM PARA MAS INFORMACION SOBRE ESTE PRODUCTO VISITE WWW TEC SHOW COM...

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