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.

Evolution of Marantz AV Pre-Amplifier

Split Pre and Power True Hi-Fi Quality Noise reduction Chassis Separation

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

AV8802 Sound Technology

Volume IC Analog

INPUT

HDAM-SA

HDAM-SA For invert signal

From D/A converter

RCA PRE OUT

XLR PRE OUT

+

-

Volume IC Analog

INPUT

HDAM-SA

From D/A converter

RCA PRE OUT

XLR PRE OUT

+

-

OP

OP

OP

OP For invert

Current feedback (New vs. Current)

AV8802 : HDAM-SA + full discrete current feedback

6 V / μsec

100 V / μsec

Current feedback

AV8801 : HDAM+ OP AMP

x 7 times Hi-speed （41.7V/μsec) than AV8801

More higher quality XLR output : mounted same circuit for Invert amp

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)

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

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 7.1.4 + Front Bi-AMP

7.1.4 + Front x 2

ZONE2 / ZONE3

Flexible (switchable) Wide / Height

Depend on source, it can change using SPK

Possible to use commonly for Audyssey DSX /

9.1.2 （w/ Front Wide) and Dolby Atmos / 7.1.4