Mono Active Direct Box with Custom Transformers, Class-A, Discrete FET Amplifier Circuit, Rugged Steel Chassis, Ground Lift, Speaker/Instrument Switch, and LED Current Consumption Meter.
ไดเร็กบ็อกซ์ Rupert Neve Designs RNDI Mono Active Direct Box with Custom Transformers, Class-A, Discrete FET Amplifier Circuit, Rugged Steel Chassis, Ground Lift, Speaker/Instrument Switch, and LED Current Consumption Meter
The RNDI is designed to deliver instrument (electric guitar, bass, keyboard, piezo pickup, etc.) and speaker feed direct injection with unprecedented sound quality.
The class-A & discrete circuit topology found in the RNDI is based around Mr. Rupert Neve’s custom transformers, and allows for outstanding sonic performance and superior noise rejection.
The RNDI can handle extremely high input levels without clipping (+21dBu on instrument & 41.5dBu on speaker), and the transformer coupled output has a very low output impedance of 40 Ohms, which is capable of driving long lines with minimal loss.
The chassis of the RNDI is a formed steel clamshell designed to hold up to the rigors of use on stage or in the studio.
Features:
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Class-A Biased Discrete FET Amplifiers
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Low-Impedance, Transformer-Balanced Out
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“Re-Amping” of Pro Line-Level Sources
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Instrument and Speaker Modes
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Powered by +48V Phantom Power
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Rugged Powder-Coated Steel Chassis
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Minimal Loss of HF Over Long Distances
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Adds 2nd and 3rd Order Harmonics
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+21.5 dBU of Headroom
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Handles 1000W Power Amplifier Output
Specifications
NOISE
Measured Output, un-weighted, 22Hz-22kHz, source impedance 150 Ohm to 10K Ohm.
Better than -110 dBV
INPUT IMPEDANCE
Instrument Setting: 2.2 Meg Ohm
Speaker Setting: 200K Ohm
OUTPUT IMPEDANCE
Less than 40 Ohm
FREQUENCY RESPONSE
+/- 0.25 dB from 25 Hz – 44 kHz
+/- 1 dB from 12.5 Hz – 63 kHz
-3 dBu @ 92 kHz
MAXIMUM INPUT LEVEL
Instrument = +21 dBu (typical)
Typical Speaker = +41.5 dBu, 92 Vrms (266Vp-p)
MAXIMUM OUTPUT LEVEL
+11.5 dBu output at maximum input level
TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu input level: 0.25% Typical (2nd and 3rd harmonic)
@ 1 kHz, -20 dBu input level: 0.015% Typical (2nd and 3rd harmonic)
@ 20 Hz, -20 dBu input level: 0.75% Typical (2nd and 3rd harmonic)
POWER REQUIREMENTS
Phantom power, 4.5mA @ +48VDC
WEIGHT
1.5lbs
DIMENSIONS
6.25” long x 4”wide x 1.5” high