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A Bad Response Curve
At the bottom line the sound you want from your car will be subject to your tastes.
Everyone will like the “Best Response Curve” and everyone will like the “Good Response
Curve”. They may not be exactly what some want, but they will sound good and they will
be comfortable to listen to. The reason is that there are no peaks in the response. The ear
is very sensitive to frequency peaks, and they irritate the listeners ears. This irritation
causes “listener fatigue” and after a while the listener will want to turn the system down...
or even off.
#1 and #2 Tuning issue
So, the number one goal in tuning is always to eliminate frequency peaks, and number 2
is always cut, don’t boost. Boosting frequencies requires more amplifier power, increases
the likelihood of distortion and causes increased noise. If you have diligently read this
manual you now have a starting point to get the exact sound you want from your sound
system in your vehicle. Tuning a sound system is a growth project. The more you tune
and the more you listen, the better you will get. If you want to grow in your tuning ability
the best thing you can do is go to car audio contests and listen to every car you can with
music you are familiar with so you can compare those cars to your car. And make notes
about what you liked as a reference for the next time you listen to your own system. For a
few dollars you can enter the contests to get your car on the show floor. The guys at
these shows are car audio fanatics and they want to spread the word. They will be more
that glad to hop into your car and listen. And tell you what you can do to improve your
system. This the very best source you will find to learn how you can improve your tune.
Technical Specifications
Type
DSP Processor
AD Signal Converter
DA Signal Converter
Hi-Level Speaker Inputs
RCA Inputs
RCA Outputs
Optical Digital Input
Coaxial Digital Input
Signal Stage
Equalizer
Delay/Polarity
Mute/Solo
Crossover Type
RMS Power
PC Connection
BT Streaming
Remote Control
Size (mm)
DSP-Z8 IV AT
8-Ch. DSP
Cirrus Logic CS47048
32-bit/192 KHz, 108 dB DR
THD+N -98 dB
Cirrus Logic CS47048
32-bit/192 KHz, 108 dB DR
THD+N -98 dB
Cirrus Logic CS8422
24-bit/192 KHz, 140 dB DR
THD+N -120 dB
8 Ch., 2-20 V
8 Ch., 1-5 V RMS
8 Ch., 1-5 V RMS
24-bit/192 KHz
32-bit/192 KHz
Freq. Response: 10 Hz - 22.5 KHz
S/N In: 110 dBA (D), 106 dBA (A)
THD+N In: 0,002% (D), 0,005% (A)
-
Crossotalk (1 KHz): 90 dB
-
1-6 Ch. Gr. & Par. / 31 poles (F/R)
7-8 Ch. Gr. & Par. / 11 poles (Eff.)
Range 0/15 ms, Step 0.02 ms
Max 515 cm, Step 0.68 cm
Polarity 0-180°
Yes, each channel
Linkw., Butterw., Bessel, Tsecheb.
-
-
USB 2.0
aptX HD (optinal ext. module)
1” LCD
Prev/Next/Mode/Source/Vol
213 (W) x 113 (L) x 50 (H)
ADSP-Z8 IV-6AT
8-Ch. DSP + 6 Ch. Amp.
Cirrus Logic CS47048
32-bit/192 KHz, 108 dB DR
THD+N -98 dB
Cirrus Logic CS47048
32-bit/192 KHz, 108 dB DR
THD+N -98 dB
Cirrus Logic CS8422
24-bit/192 KHz, 140 dB DR
THD+N -120 dB
8 Ch., 2-20 V
8 Ch., 1-5 V RMS
2 Ch., 1-5 V RMS
24-bit/192 KHz
32-bit/192 KHz
Freq. Response: 10 Hz - 22.5 KHz
S/N In: 110 dBA (D)106 dBA (A)
THD+N In: 0,002% (D), 0,005% (A)
THD+N Analog In: 0,07% (DSP+Amp)
Crossotalk (1 KHz): 90 dB
Crossotalk: 45 dB (DSP+Amp)
1-6 Ch. Gr. & Par. / 31 poles (F/R)
7-8 Ch. Gr. & Par. / 11 poles (Eff.)
Range 0/15 ms, Step 0.02 ms
Max 515 cm, Step 0.68 cm
Polarity 0-180°
Yes, each channel
Linkw., Butterw., Bessel, Tsecheb.
6 x 80 (4Ω), 6 x 120 (2Ω)
3 x 240 Watt (4Ω/Bridged)
USB 2.0
aptX HD (optinal ext. module)
1” LCD
Prev/Next/Mode/Source/Vol
213 (W) x 222 (L) x 50 (H)