The DP-450 is the dedicated CD player which realizes bothsophisticated performance and fine sound quality with thefull of technologies developed in the DP-570 SACD/CDplayer.
Vibration control in CD players that read audio data fromrotating discs greatly impact the sound quality.
By installing newly-developed drive mechanism andrefurbishing the chassis framework, the DP-450
significantly improves the anti-vibration and vibration
damping performance.
The high-performance DAC chip and improved filter circuit
fully produce ideal electronic performance and soundquality including the low noise characteristic.
Making full use of cutting edge technologies, the DP-450
extracts the true colors of any CD to deliver a listening
experience that stays with you.
1

DP-450 is applied the systematic layout.
Each circuit block is logically placed to make the signal
path short as possible.
The digital circuit is on the right side and the analog
circuit is on the left side at the rear panel.

2The strong integrated chassis structure that supports theCD drive mechanism adopts the 2 pieces structure, fromthe 7 pieces in the former DP-430.
This enhanced chassis rigidity helps to improve the antivibration and vibration damping performance.

3

The newly-developed CD drive mechanism makes thebridge cover larger than former model, and applied threelayer structure with the open-cell structure material which
absorbs the operational vibrations and noises.

The chucking magnet is an 8 pole-neodymium bonded
magnet for high magnetic flux density and dimensional
accuracy, and it enables uniform disc rotation without
wobbling.

DP-430DP-4504

The traverse unit which is loaded with the laser pick up
and the viscoelastic dampers that isolate the vibrations
among main chassis are very important parts for thevibration characteristics.

In the DP-450, the high –performance viscoelastic
dampers which is designed with new material and shape
are incorporated.

5

Thanks to the newly-developed CD drive mechanism, theDP-450 succeeds in 50% (6dB) reducing the externalvibrations from being transmitted to the laser pickup at
the resonance frequency.

This results in 10 times higher reading precision of theDP-450, compared with former DP-430.

6

For D/A converter section, Accuphase updates the DAC
chip to ESS Technology’s 32bit Hyper Stream Ⅱ DACES9026PRO for DP-450.
** DP-430 uses Asahi Kasei Micro Electronics AK4490EQ.

ES9026PRO has 8 DACs inside, and DP-450 uses 4DACs connected in parallel per channel with Accuphase’s
unique technology, Multiple Delta Sigma + conversion
system.
Fully-balanced structure is employed in DP-450.
In addition, the independent low pass filter is installed foreach audio output(Direct Balanced Filter), thanks to this,the sound signals from all the outputs become highquality.

7Ultra Low Noise is one of the main technical features ofDP-450.
DP-450 guarantees 119dB Signal to Noise ratio whichmeans 2.8μV of output noise voltage.
The former model, DP-430 still shows the excellent noiseperformance, however, DP-450 achieves 20% lower
output noise voltage than DP-430.

8

The Dynamic Range is the value that indicates the ratio ofmaximum playable signal to minimum.
The higher Dynamic Range is, the higher thereproducibility of the small signal is.
The former model, DP-430 still has the high Dynamic
range performance, however, DP-450 achieves 3dB
higher than DP-430.
** “3dB higher” means 40% up.

9DP-450 proves itself the great Total HermonicDistortion(THD) + Noise characteristics which are quite
important for music playback.
This graph clearly illustrates that DP-450 obtains the 10%lower THD+Noise characteristics over the entire
frequency band than DP-430.

10

DP-450 has 3 digital inputs, Coaxial, Optical and USB.
USB Input accepts 384kHz/32bit-PCM or 11.2896MHzDSD.
Coaxial and Optical Transport outputs are also available.
Transport part and DAC part can work separately.
DG-68 can be connected easily between Transport outputand Digital input of DP-450.

11DP-450 can show the sampling frequency and thenumber of effective bits of all input signals on the front
display.
Quantization bits are counted directly from the raw data
by using a high speed Complicated Programmable Logic
Device.

12

DP-450 provides a programmable playlist feature.
It allows you to enjoy listening the music in the order you
prefer.

13