DBX DX5
¥ 99,800 (around 1988?)
Commentary
A CD player with a sound quality design and sound effects.
A 16-bit 4-times oversampling digital filter is installed as a digital filter, and a third order low-pass filter is installed as an analog filter.
This digital filter has an attenuation of more than 76 dB in the stopband of more than 24.1 kHz and eliminates the center frequency of unwanted components to 176.4 kHz. This enables the low-pass filter to be reduced after D/A conversion. As a result, excellent phase characteristics and transient response characteristics are obtained, and resolution is also improved compared to the 14-bit type.
The glitchless 16-bit high-speed linear D/A converter is mounted on the D/A converter section independently on the left and right sides.
By making the left and right independent, there is no phase shift between channels, and excellent sound localization and high frequency reproduction capability are obtained.
A 3-beam laser pickup using a newly developed lens is used in the pickup section.
In this method, in addition to the main beam that reads the signal, two sub-beams detect the track shift of the main beam in real time and control it with a servomechanism. This reduces the influence of disc eccentricity, warpage, scratches and dirt, and realizes stable tracing capability.
Equipped with three unique sound effects features of dbx, you can adjust D. A. I. R., Compress, and Ambience.
In D. A. I. R. (Digital Audio Impact Recovery), this function emphasizes the missing peak component.
Even in a wide dynamic range CD, the dynamic range of live music, especially sharp peaks, is suppressed during recording, and D. A. I. R. emphasizes only the instantaneous attack sound, which is the lost peak component, when recorded.
It detects a sudden increase in the level of the music signal and gives a strong impact of up to 10 dB. The effect is made natural by the two band operation of high and low band.
Compress reduces the dynamic range of a CD from more than 90 dB to a minimum of 60 dB by suppressing large sounds and raising small sounds. This function is useful for low-volume playback in noisy environments or at midnight. It is also ideal for BGM applications.
The reduction operation is two band division same as D. A. I. R.
The Ambience adjusts the stereo separation by adding and reducing the LR signal in the mid and high range to control the sense of sound spread. Turn the volume to the left to make it tight, and turn it to the right to increase the sense of sound spread.
16-track random program function, 1-track / All/A-B repeat function, skip search and index search function are equipped.
Equipped with HF and LF 2-band point LED display Dinamics meter that can confirm the operation status of D. A. I. R. and Compress at a glance.
Equipped with a touch control attenuator that can adjust the line-out level.
Equipped with a headphone port with volume.
It is equipped with an error collection display LED which displays the error correction status due to scratch or dirt of the disk.
Wireless remote control is included.
Model Rating
| Type | CD Player |
| Audio Characteristics | |
| Filter | 4 x oversampling digital filter |
| D/A converter | 2DAC |
| Channel | 2 Channel |
| Frequency characteristic | 5 Hz to 20 kHz ± 0.3 dB |
| Dynamic range | 96dB 60 dB to 90 dB variable (dbx circuit) |
| Signal-to-noise ratio | 96dB |
| Channel separation | 85dB(1kHz) |
| Harmonic distortion factor | 0.003% 0.07% (dbx circuit) |
| Wow flutter | Below the measurement limit |
| Maximum power output | 2Vrms |
| Error correction system | CIRC |
| Optical Reading and Signaling System | |
| Laser | GaAlAs (double hetero diode) |
| Sampling frequency | 44.1kHz |
| Quantization | 16-bit linear, 2-channel |
| <General> | |
| External dimensions | Width 483x Height 88x Depth 302 mm |
| Weight | 5.6kg |
| Attachment | Wireless Remote Control |