
蛇皇唱頭放大器
Specifications:
Inputs: | L&R Moving coil, RCA connectors L&R Moving magnet, RCA connectors |
Input loading: | MC: 50, 100, 250, 500, 1000 Ohms MM: 47K Ohms |
Outputs: | L&R balanced, XL connectors, Pin 2 Hot L&R unbalanced, RCA connectors |
Output loading: | Balanced 600 Ohms or greater Unbalanced: 600 Ohms or greater |
Gain: | MC Low: 60 dB at 1 kHz MC High: 70 dB at 1 kHz MM: 40 dB at 1 kHz Mute: -100dB |
Equivalent input noise: |
MC: 150 nV, 22Hz - 22 kHz, unwtd |
Equalization: | RIAA +/- <0.08dB |
Power requirements: |
85-265VAC, 50-60Hz, 15 Watts. |
Dimensions: | 16"(406mm)D 17"(431mm)W 2.25"(57mm)H Plus feet and cable clearance |
Mass: | App 65 lb (30Kg) |
Supplied accessories: | BLACK LABEL II+ A/C CABLE |
THE NBS UNIVERSAL PHONO PREAMPLIFIER
Sixty Five pounds of silence. Encased in 录" solid copper, the phono pre amplifier is universal in several ways:
First, you can plug it in anywhere in the world with no adjustments. It has a universal AC mains input with power factor correction.
Second, you can use any pickup..from the lowest output moving-coil to the highest output moving-magnet type.
The solid copper chassis provides exceptional shielding and grounding. A generous grounding post is provided adjacent to the inputs. Not only that, the copper enclosure is also beautiful to look at.
The moving-coil input and the moving-magnet input can be connected simultaneously and selected from the front panel. Low and High moving coil gain can be selected from the front panel as can moving coil loading.
The input selector also has a Mute position for noisy operations like cleaning the stylus or making connections to the inputs.
Balanced and unbalanced outputs are provided and both can be used simultaneously.
For the serious LP connoisseur the proof is in the listening. This pre amp reveals your LP collection in a way that makes you want to rediscover it. This is due to a signal-to-noise ratio and signal headroom which greatly exceed what the disc and pickup can deliver. The pre amp will never be a limiting factor. Further, the accuracy of the RIAA equalization is unmatched by any preamplifier of which we are aware. The equalization is true RIAA without the IEC low frequency rolloff. Turntables appropriate for use with the NBS preamp do not require it and the low frequency reproduction is much better without it.
Also, the so-called "Neumann" stop in the de-emphasis is not present. This prevents the output of ultrasonic "junk" and generally improves the clean quality of the signal.