Six Channels/DSP/EQ and 3-way Input Summing Amplifier?

Helix-P-SIX-DSP

Audiotec-Fischer’s new six-channel amplifier with built-in DSP/EQ and high wattage high-level input with six-channel of summing capability is simply a work of art – try to say that fast. The milled aluminum with black exterior accents is easy on the eyes, but what about the inside?

Let’s look at their description of the amplifier:

  • New “Class Ultra D” concept which combines the sound quality of class AB technology with the benefits of class D amplifiers
  • Cutting-edge, compelling “fixed point” Audio DSP with 64 Bit resolution and 1.2 billion MAC operations per second
  • Six speaker outputs with up to 215 Watts RMS into 2 Ohms
  • Two processed RCA outputs
  • Extremely high damping factor (> 1,000)
  • Inputs: 6 x RCA, 6 x High-level with up to 20V RMS input ­sensitivity, optical SPDIF input
  • HELIX Extension Card slot (HEC) for additional input/output modules like Bluetooth® Audio Streaming
  • Compact design with low heat dissipation thanks to ­extraordinary efficiency

I have not seen damping factors (> 1000) in years since the old Rockford Fosgate DSM amplifiers of the early 90s. This is unheard of in a class “D” amplifier! With the chassis only being 10 x 7 x 2 inches in size, this next generation of an amplifier will fit any vehicle today. And with a minimum of 120 x 6 watts in this heatsink, this piece becomes a true solution piece for upgrading or replacing those troublesome factory amplified systems that we all have a love/hate relationship with.

Let’s dig deeper into their claims of performance (import text isn’t importing correctly, sorry in advance):

RMS power (measured acc. to CEA 2006-A)
Channel A – F @ 4 Ohms …………………………………120 Watts per channel (≤ 1% THD+N)
Channel C – F @ 2 Ohms……………………………………………………………………..215 Watts per channel (≤ 1% THD+N)
Inputs…………6 x RCA / Cinch/6 Highlevel  speaker
Outputs……………………………………………………………….6 x Speaker & 2 x RCA
Output voltage RCA……………………………………………………..3 Volts RMS
Frequency
(Operations/second) Sampling rate 48 kHz
Signal converters…………………………………………………………A/D: BurrBrown
D/A: BurrBrown Signal-to-noise ratio digital input ………………………..105 dB (A-weighted) Signal-to-noise ratio analog input………………………………….100 dB (A-weighted)
Distortion (THD)……………………………………………………..< 0.01 %
Damping factor ……………………………………………………….> 1,000
Input impedance RCA / Cinch ……………………………………64 kOhms
Input impedance high level…………………………………………30 Ohms or 64 kOhms
Operating voltage …………………………………………………….9.6 – 18 Volts (max. 5 sec. down to 6 Volts)
Frequency response…………………………………………………20 Hz – 22,000 Hz
DSP resolution………………………………………………………..64 Bit
DSP power ……………………………………………………………..295 MHz (1.2 billion MACo)

Now that your head hurts, let’s check out the important ones to everyday applications:

  • Distortion less than .01%
  • 20 Volts input on high- level adaptor
    • You can get the high-level signal or speaker inputs AFTER the factory amplifier!
  • Extra 2 outputs on running a subwoofer amplifier
    • If a customer chooses a larger subwoofer amplifier, it can be seamlessly added to the amplifier’s DSP/EQ section.
  • 120 watt CEA rating
    • Real rating, not an inflated number
  • 2 – remote outputs
    • Increases the flexibility for expansion of OEM systems
  • The ability to do direct Bluetooth streaming!

This amplifier has all the important features that are needed for today’s complex systems. OEM integration is the fastest-growing segment of 12-volt audio today, which fits the application perfectly. This amp is worth a visit to your local store to audition this amplifier.

CanadianCarStereo.com

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