VSi75
Power Output: 75 watts per channel continuous from 20Hz to 20kHz. 1 kHz total harmonic distortion typically 1.5% at 75 watts, .05% at 1 watt.
Approximate actual power available at “clipping” 80 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
Power Bandwidth: (-3dB points) 12Hz to 70kHz.
Frequency Response: (-3dB points at 1 watt) 1.0Hz to 70 kHz.
Input Sensitivity: 0.55V RMS Single-ended for rated output. (32.5dB gain into 8 ohms.)
Input Impedance: 52.5K ohms Single-ended.
Inputs (5): 1, 2, 3, 4, 5 (Single Ended RCA connectors).
Maximum Input: 10V RMS (any input).
Output Polarity: Non-Inverting (any input).
Push Buttons: Volume up, Volume down (103 steps), Power, Input, Mute, Bias. All functions on IR remote control.
Output Taps: 8 ohms, 4 ohms.
Output Regulation: Approximately 2dB 8 ohm load to open circuit (Damping factor approximately 4).
Overall Negative Feedback: 4dB.
Slew Rate: 10 volts/microsecond.
Rise Time: 4 microseconds.
Hum & Noise: Less than 1.0 mV RMS -88dB below rated output (IHF weighted, Vol down).
Power Supplies: Electronically regulated Low and High voltage supplies for input stages. Automatic 40 sec. warm-up/brown- out mute.
Power Supply Energy Storage: Approximately 350 joules.
Power Requirements: 100-125VAC 60Hz (200-250VAC 50Hz) 400 watts at rated output, 600 watts maximum, 210 watts at “idle’: 1.0 watt power off.
Tubes Required: 2-Matched pair KT120-Power Output; 2 -6H30 driver.
Dimensions: Width 14.5” (36.8 cm) Height 9.25” (23.5 cm)
Depth 16.25” (41.3 cm) Rear connectors extend .88” beyond chassis.
Weight: 36.4 lbs. (16.5 kg) Net; 49.3 lbs. (22.4 kg) Shipping.
CD9
The Reference CD8 has been extremely popular, winning acclaim and awards internationally for its stellar performance since being introduced in November 2008. An engaging musical performance has kept its sales surprisingly strong, even in the face of new digital technologies. The fact is that lots of music lovers still embrace their compact disc collections and will not give them up.
After four years it is finally time to replace the REF CD8. People still want to play their CDs, but they also want to add other digital sources such as computer audio to their music systems, so we are introducing the REF CD9 CD-DAC. It combines the best of both, a super high-resolution compact disc player with a super high-resolution digital-to analog converter that is stunning in its musicality.
The REF CD9 incorporates four digital inputs: Asynchronous USB 2.0HS, AES/EBU, RCA, and Toslink. All inputs handle 24 bit / 192k resolution. As you would expect, the REF CD9 retains the Philips PRO2R transport, still the best dedicated CD mechanism available. It is simply unsurpassed for compact disc playback.
Benefitting from what we have learned in the development of the REF DAC and the DSPre, the REF CD9 utilizes quad 24-bit DACs running in mono mode, with dual master oscillators; one for 44.1/88.2/176.4 sample rates, the other for 48/96/192kHz sample rates. Sample rate conversion is selectable for all inputs, allowing playback in native resolution or via upsampling, including compact disc and—for the first time— the USB input. Additionally, there is a selectable digital filter, with either fast or slow rolloff. On the bench, the bandwidth of the REF CD9 is five times that of the CD8, with one tenth of the distortion, greater dynamic range, and it is also quieter.
Like the REF 5SE, REF PH2SE and REF DAC, the analog section is vacuum-tube, with four 6H30 dual-triodes, and there is vacuum-tube power-supply regulation featuring a 6550WE with a 6H30. The magic is continued.
The front panel has the familiar, dimmable CD display on the left side. On the right side there are three vertical LED displays indicating Sample rates (44.1-48-88.2-96-176.4- 192 top to bottom), Input (CD-RCA-USB-AES-TOS top to bottom), and Fast-Slow- Upsample-Power (top to bottom). Underneath the LED displays there are seven silver metal buttons for Power, Previous, Play, Next, Pause, Stop, and Input. Silver handles are standard with a natural front panel. Like its predecessor, the chassis and top cover are black, and the footprint remains the same. In addition to the digital inputs, the back panel includes Digital Outputs (AES/EBU and BNC), single-ended RCA and balanced XLR outputs, and a 15A IEC power connector. It comes with our new, metal remote.
Because it is functioning as separate DAC, Audio Research custom ASIO drivers must be installed in your computer for use with the USB 2.0HS input.
Sonically, the REF CD9 is in a new class, combining the magical musicality of tubes with new levels of transparency and aliveness. The REF CD9 sounds “faster” with greater transient speed, improved dynamics from top to bottom, much greater resolution of inner detail, with a focus and purity that is captivating. Rhythm, pace and timing are better than ever, something you must hear to appreciate.
Kategorie:
NOWOŚCI
