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A2
- Lower distortion
- Optical and coaxial digital outputs
- Random play function
- Greatly improved sound quality
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A3.2
- 24 Bit resolution
- True up-sampling to 96kHz
- Same DAC, transport mechanism
- Filter assembly and control electronics
- Extremely low jitter
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A3.5
- Highly sophisticated power supply
- Outstanding technical performance
- Frequency response: 10Hz to 20kHz +0 / -0.2dB
- Digital outputs 1 optical
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A308CR
- Upsampling 96kHz
- Frequency response 10Hz to 20kHz +0 / -0.2dB
- Signal / noise ratio > 115dB 'A' weighted
- Total harmonic distortion < 0.003% 10Hz to 20kHz
- Total correlated jitter < 150 pS
- Channel separation > 100dB 20Hz to 20kHz
- Linearity < 0.2dB down to -100dB
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A5
- Frequency response: 10Hz to 20kHz +0 / -0.2dB
- Signal / noise ratio: > 113dB
- Channel separation: > 105dB 20Hz to 20kHz
- Digital outputs: 1 optical
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kW SACD Player
Dual differential DAC.--Outstanding technical performance.
Extremely accurate linearity down to very low levels (typically -100dB).
Lets you hear right into the far distant corners of the recording.
Foremost non existent distortion.
You can hear everything on the recording as it happened on the day.
Excellent noise ratios. Everything, but everything can be heard.
Two output stages operating at the same time (one tube and the other solid state).
By connecting both the output stages to your amplifier you can switch between tube and solid state and select the one which compliments your hi-fi system and your discs on an individual basis. Really useful.
Specifications:
DAC architecture 24 bit Delta-Sigma (Bitstream)
Dual mono dual differential
8x oversampling
Separate stages for valve (tube) and solid state outputs
Disc mechanism Philips
Upsampling 192kHz
Analog output impedance 50 Ohms
SACD analog output, solid state
Frequency response 10Hz to 20kHz ref. 1kHz: +0, -0.1 dB
10Hz to 30kHz ref. 1kHz: +0, -0.3 dB
10Hz to 40kHz ref. 1kHz: +0, -1.6 dB
10Hz to 50kHz ref. 1kHz: +0, -4.8 dB
Signal / noise ratio (digital mute) > 115dB "A" weighted
Total harmonic distortion < 0.001% at 1kHz
Channel separation > 98dB 10Hz to 20kHz
Linearity error, 1kHz 0dB at -100dB
0.2dB at -110dB
Audio output at digital 0dB level 2.3VRMS at 1kHz nominal
CD analog output, solid state
Frequency response 10Hz to 20kHz ref. 1kHz: +0, -0.05 dB
Signal / noise ratio (digital mute) > 120dB "A" weighted
Total harmonic distortion < 0.002% at 1kHz
Channel separation > 98dB 10Hz to 20kHz
Linearity error, 1kHz 0dB at -80dB
0.5dB at -90dB
Audio output at digital 0dB level 2.2VRMS at 1kHz nominal
Jitter 150pS
Tube class A output
Frequency response 10Hz to 100kHz ref. 1kHz: +0, -0.4 dB
Signal / noise ratio > 115dB "A" weighted
Total harmonic distortion < 0.001% at 1kHz
Overall gain 0dB
Connectors
Analog outputs 1 pair RCA connectors for valve (tube) output,
1 pair RCA connectors for solid state output
Digital outputs (CD only) 1 optical (Toslink),
1 S/PDIF (Sony/Philips Digital Interface Format) RCA connector
General
Power requirements 100 / 115 / 230V AC 50 / 60Hz (factory preset)
50 Watts
Weight 19.5 kg, 43 lbs unit only, un-boxed
24.4 kg, 54 lbs in immediate carton
28.1 kg, 61.9 lbs in shipping over-carton
Dimensions 483mm, 19 inches wide
167mm, 6.6 inches high including feet
443mm, 17.5 inches deep including rear terminals and on/off button
Standard accessories Remote control handset (kW universal type),
2 batteries size LR03 or AAA, manganese alkaline type,
IEC mains lead (10 Amp type)
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Nu-Vista 3D
First we made a critical analysis of why normal compact disc players sound different to SACD machines. The main difference, which you can hear, measure and easily identify, is in the HF performance. Noise ratio and dynamic range make a small difference. It's commonly believed that the extended frequency response of SACD, up to about 100kHz, is the big reason why SACDs sounds different to ordinary CDs. But over the age of 25, most people can't even hear up to 18kHz, and the older you get, the worse this gets. People in their sixties or older can hear the difference between SACD and CD, so what they're hearing can't be down to the extended HF response.
Our research has shown that the audible differences between CD and SACD are caused by in-band non-linear distortions, group delay, phase-shifts and intermodulation anomalies.
So we have engineered the Nu-Vista 3D to ensure that it has dramatically better HF performance than ordinary CD players in distortion, phase shifts, group delay, inter-modulation, non-linearities and noise ratios. The result is that in-band (20Hz to 25kHz), the Nu-Vista 3D actually measures better than SACD.
To achieve this, the Nu-Vista 3D up-samples 24-bits at 96kHz. This takes all digital error artifacts out of band so they're not a factor up to about 35kHz. As a result, we were able to simplify and re-design the digital and analog filters to be far above the audio band, so that their phase shift and group delay is out of band. This allows for a reduction in overall feedback and simpler circuitry.
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Tri-Vista SACD
- Tri-Vista tube dual differential Class A analog stage
- Seven choke-regulated power supplies
- High end Phillips transport mechanism
- 24 bit Delta Sigma Dual Differential DACs
- 500 units Worldwide
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X-RayV3
- Upsampling: Gives greatly improved sound
- Highly sophisticated PSU
- Very low jitter
- Excellent technical performance
- Frequency response: 10Hz to 20kHz +0/ -0.2dB
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