1. Evolution of Marantz AV Pre-Amplifier
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 Y2015　　　
　　　　　　　　　　　　　　　　 AV8802　　　　　　　　　　　　
<Challenge to reach Premium H-Fi quality
Complete Redesign of the Hi-fi grade amplifier
Analog section of the amplifier is protected from high frequency noise (also improved jitter)
Derived enhanced measured and subjected sonic improvements well above the AV8801 levels.
Hi-speed output amplifier Upgrades Using the same grade as the Newest Hi-Fi (Slew-rate: over 100V/μsec or an order of magnitude performance gain.)
Doubled reserved power supply capacitance using audiophile grade components.
Split Pre and Power
Separation
Chassis
Noise reduction
True Hi-Fi Quality

2. Current technologies (continuing)
AV8802 Sound Technology
New technologies
Full discrete current feedback with HDAM-SA2
Jitter reduction Efforts. DSD Compatibility.
Transformer with OFC winding/
New developed main Multi Layer Boards
New Improved DAC / AKM　AK4490
Current technologies (continuing)
Independent PCB analogue output circuit
(HDAM-Pure Lines )
3 pieces chassis and dual mounting stay with copper plated chassis

3. Current feedback (New vs. Current)
AV8801 : HDAM+ OP AMP　
6 V / μsec
Volume IC
HDAM-SA
From D/A converter OP OP
RCA PRE OUT
Analog INPUT OP
Current feedback + OP
For invert
XLR PRE OUT -
AV8802 : HDAM-SA + full discrete current feedback　
x 7 times Hi-speed （41.7V/μsec) than AV8801
More higher quality XLR output :　mounted same circuit for Invert amp
100 V / μsec
Volume IC
Analog INPUT
HDAM-SA
For invert signal
From D/A converter
RCA PRE OUT
XLR PRE OUT + -

4. Jitter Technology Improvments / Noise reduction (1/2)
Jitter / Noise control technology reduces high frequency noise.
Newly developed noise control technology
Noiseless design for digital circuit though careful filtration and power supply isolation.
Implemented premium audio grade coupling capacitors
Newly speced 3 terminals capacitors
Improved lower impedance design through careful redesign.
New lock Jitter reduction technology.
Additional measurable jitter control at clock by reducing mechanical vibration
Cirus Logic CS2100 also aids in clock jitter reduction
2 times higher speed switch mode power supply!
The new approach allows for higher Switching frequencies. As a result, switching noise is out of listening frequency area.
 Digital input sound quality has been improved (Incl. HDMI)

5. Power Supply
Hi-Fi Reference grade quality and Big enough capacity of power supply
Transformer
Troidal core with OFC wire winding in Aluminum casing
Original idea is derived from PM-11S3 and customized and adapted to AV8802
Main ELCO (electrolytic)
Special made for AV8802,
Big capacity ELCO x 4pcs
　　　AV8801: 4,700μF x 4
　　　AV8802: 10,000μF x 4 (Nichi-Con custom). The result is a much higher reserve with increased dynamics.
Complete independent Digital / Analogue power supply
Avoids interference by special hi-speed switching power supply

6. D /A Conversion Speced in the latest 32bit AKM AK4490 x Channels.
Modified preamplifier after the new DAC
The DAC section improvements result in a more transparent sound.

7. HDAM-Pure Lines- The Evolution Continues.
Reduced crosstalk dramatically by all channels using independent PCB
　　Low interference ==more pure sound reproduction
AV7005: Pre-AMP PCB (for 6ch)
AV8802: Pre-AMP PCB (for 13ch)

8. 32bit x 4pcs DSP (32 bitfloating point)
DSP + Dolby Atmos
32bit x 4pcs DSP (32 bitfloating point)
Powerful GUI along with numerous choices for speaker configurations. More DSP’s (MIPS) were added for the support of Dolby Atmos,Audio 3D and other platforms.
Audyssey MultEQ XT32

9. Free speaker combination for Dolby Atmos
For standard Dolby Atmos
TOP SP×4 / Height / Dolby Enabled SP×4
All combinations work for Dolby Atmos
For custom Installations
Front Bi-AMP
Front x 2
ZONE2 / ZONE3
Flexible (switchable) Wide / Height
Depend on source, it can change using SPK
Possible to use commonly for Audyssey DSX / （w/ Front Wide) and 　Dolby Atmos / 7.1.4