Content |
- Balancing and impedance matching for guitar/bass/keyboard synthesisers
- Two-channel model for stereo signals or two instruments
- Eliminates ground loop hum thanks to galvanic transformer isolation
- Extremely fail-safe, no power supply required
- Thru-out for routing input signals to amplifiers
- Pure and unaltered low-noise audio
- Handles even high-level inputs without distortion
- Switchable 30 dB pad for extremely high input levels (e.g. amplifier output)
- Solid casing made of aluminium and steel
- Engineered in Germany
|
Ενεργό DI box με ground lift, αναστροφή φάσης, έξοδους XLR και καρφί 1/4'' (thru), pad 3 θέσεων στην είσοδο για σήματα επιπέδου instrument/line/speaker
- Premium Performance
- Rugged Design
- Stackable Chassis with Durable Rubber Foot
- Gold-plated Neutrik® XLR Connector
- Premium Chrome Toggle Switches
- Hi-Z 1/4" Input Jack
- Parallel 1/4" Thru Jack
- Transformer Isolated
- Premium Shielded Custom dbx Transformer
- Balanced XLR Lo-Z Output
- 3-Way 0/20/40 dB Pad Switch
- Flat/High-Cut Filter Switch
- Output Polarity Invert Switch
- Ground Lift Switch
- 4 Year Warranty!
Additional dB12 Features - Phantom Powered
- Green LED Phantom Power Indicator
- +48V Phantom Operation
- Low-Noise Active Circuitr
dB12 Specifications INPUT SECTION
Input: 1 instrument/line/speaker level
Connector: 1/4" jack
Type: Unbalanced, RF filtered
Impedance: 150k Ohm typical
Max Input Level: +20dBu (0dB pad)
+40dBu (20dB pad)
+60dBu (40dB pad)
OUTPUT SECTION
Thru Output: 1 parallel connection from input jack
Connector: 1/4" jack
Type: Unbalanced, RF filtered
Main Output: 1 line level
Connector: XLR male jack
Type: Balanced
Impedance: 150 Ohm typical
Max Output Level: 0dBu
PERFORMANCE
Transformer: Custom dbx mu-metal-shielded
Frequency Response: 20Hz to 20kHz, +/-2.5dB
Noise: |
Active DI-Box SM-60
The electronic Direct-Injection Box SM-60 allows direct connection of electronic music instruments such as keyboards, synthesizers, electric and electronic pianos, etc. with mixing consoles in PA-systems and in recording studios. The SM-6 is designed for applications, where a passive DI-Box does not perfom satisfactorily, i.e., where the output level of a passive DI-Box is too low for the microphone input section of the mixing desk. Because the input impedance of the SM-6 is above 5 MOhm, instrument outputs are not loaded or in any other way adversely affected. The voltage ratio from input to output is 1: 1 and is always sufficient for connection with any microphone input. Input connectors are 1/4" phone jacks, output connector is a Switchcraft D3M; output is 600 Ohms, transformer balanced. The output level may in certain cases overload microphone inputs - the line input section of the mixing console must then be used for connecting the SM-6. The unit operates with a 9 V battery or phantom powering from 24 to 48 volts.
Technical Data
input impedance > 5 MOhm max. input impedance + 6 dBu, 1,55V ouptut impedance 600 Ohm frequency response 20 ... 20000 Hz, ± 0,2 dB gain 1 : 1 THD < 1 % at 30 Hz < 0,7 % bei 40 Hz powering 9-V battery (IEC 6LF22) or phantom power 24 ... 48 V. inputs two 1/4" phone jacks , unbalanced (one being used as output to instruments amp) outputs XLR, balanced pin 1 = ground, pin 2 = hot, pin 3 = cold case aluminium die-cast weight 240 g dimensions 113 x 71 x 37 mm |
DI box παθητικό 1-channel DI box, passive Converts unbalanced 6.3 mm jack line input (e.g. from instruments) into balanced XLR output for connecting a mixer Switchable input attenuation: 0 dB, -20 dB, -40 dB Ground-lift switch eliminates ground loop problems 1 signal input (6.3 mm jack) 1 parallel output (6.3 mm jack), feed-through of the input signal 1 low-impedance output (XLR) Gray housing |
Inline Transformer IA-2
The model IA-2 line matching transformers !S designed to properly match a low impedance signal to a low impedance source. The advantage of "ground lift" switching allows to optmize hum problems. Technical Data Frequency response 20 Hz - 20 KHz + 1 dB Impedance 600 : 600 Ohm THD K3 50 Hz = 0.5 % Level < + 6 dBm Weight 100 g Dimensions diameter 17 mm, lenght 115 mm |
Tube-buffered DI-Box DI-1000
The Tube-Buffered DI-Box DI-1000 allows the extraction of all the musical details of musical interfaces without degrading the sound. This can only be achieved by providing a very high input impedance to avoid any loading of instrument pickups.This design approach allows seemingly infinite headroom to preserve the real dynamic range of the interfaced instruments.A vacuum tube enables all these goals to be achieved without any compromises in sound quality.The sonic difference between a standard DI-Box and the Tube-Buffered DI-Box is comparable to the musical resolution difference between a standard microphone and a studio microphone.One of the best transformers, the very transparent sounding JENSEN JT-DB-E, was chosen providing complete ground isolation. The parameters of this transformer, like frequency response, phase response, group delay and geadroom capabilities, play a vital part in the performance of this DI-Box. Technical Specifications Input The signal of the instrument is directly fed to the tube circuit with > 20 MOhms input impedance to prevent any signal degradation, inevitable in traditional designs. Buffered Output“ The second stage of the vacuum tube is used to buffer the signal and lower the output impedance to < 8 kOhms. This unity gain output allows for cable runs of 10 meters without loosing high frequency information. Boost circuit The boost circuit increases the signal send to the output transformer by 15 dB. This may be useful for instruments with extremely low output, but decreases headroom capability to 6 Volt rms. Under these circumstances the signal may be clipped, concerning the output transformer?s signal, which gives you 2nd harmonic tube-like distortion. This distortion normally does not occur - but is sometimes desirable, being the reason for this special feature. Unity circuit The unity circuit feeds a low distortion unity gain signal to the JENSEN output transformer. This gives the best possible sound quality. Ground-lift“-Switch This front panel mounted switch allows complete ground and electrical isolation between the direct injection box and the console or recording device.
Mechanical Specifications Cabinet 2 mm stainless steel Front- and rear-panel 1,5 mm stainless steel lasercut and photo-chemically etched Dimensions 185 x 100 x 40 mm Vibration insulation 4 high-compliance rubber-elements Operating Voltage 220/110 V AC, selectable via rear panel mounted switch. The fuse is easily accessible from the rear panel. IEC mains connector with optional fixture. Construction details Double sided glass fibre contacted PCB with 70 mm copper plating. 1% metal film resistors and the finest polypropylene capacitors are used in the signal path. MIL type Switchcraft jacks and high performance switches ensure flawless operation. The power supply is optimised via measurement quality toroid transformer and a low impedance design to ensure the lowest possible noise. Through a double sided PCB all parts are roadworthy secured. A waterclear blue LED perfects the aesthetics of the DI box.
Technical Data Input impedance > 20 MOhm Output impedance180 Ohm at 1 kHz Frequncy response 20 Hz - 20 kHz (-0,1 dB) 5 Hz - 120 kHz (-3 dB) THD at 0 dBv 0,06% at 20 Hz 0,04% at 1 kHz 0,035% at 20 kHz Signal to Noise Ratio 86 dB Tube ECC 83/7025 A - military E 83 CC optional Output transformer JENSEN JT-DB-E Polarity Pin 2 Hot , AES/IEC -Standard Max. Input voltage > 30 V peak |
Αξιολογήσεις
Δεν υπάρχει καμία αξιολόγηση ακόμη.