| Content | Dual (stereo) hum eliminator
- DATI (dual audio transformer / isolater)
- Frequency range: 10 - 50,000 Hz
- Total harmonic distortion (THD): 0.01%
- 2 Channels
- Inputs: XLR balanced, jack balanced, RCA
- Outputs: XLR balanced, jack balanced, RCA
|
The alphaton Direct Injection-Box SM-50 allows direct connection of electric guitars,
electric bass, and electronic music instruments with mixing desks of PA systems
and of recording studios.
The SM-50 reduces the amount of microphones used on stage, thus improving gain
before feedback.
Coloration of sound is avoided. Clean signal without interference from other instruments
eases the job of the recording engineer. The use of a strong aluminium die-cast box allows
trouble-free function for a number of years even under adverse conditions. Double grounding
(hum) can be eliminated by activating the built-in ground-lift switch. Isolation voltage between
input and output is 2500 volts, against ground 1500 volts (with ground-lift switch activated).
The box thus complies with toughest safety standards.
Technical Data
input impedance 20 kOhm
input impedance, instrument
input impedance, line-In
input impedance, speaker
output impedance 200 Ohm
frequency response 30 ... 20000 Hz, ± 1 dB
THD
isolation voltage tranformer pri/sec 2500 V
outpur to ground 1500 V
inputs 1/4" phone jacks, unbalanced
outputs XLR, balanced, microphone level.
pin 1 = ground, pin 2 = hot, pin 3 = cold
case aluminium die-cast
weight 230 g
dimensions113 x 71 x 37 mm
| Standard active DI box. Can be operated with 9 V batteries or 48 V phantom power. High-impedance input; higher output level than with a passive DI box. Active circuitry allows for high input impedance ( 1 meg. ohm) and higher input sensitivity (typical difference between in and out -4 dB). Maximum output impedance with phantom power operation +10 dB. Output: transformer balanced. The special "floating ground" circuitry enables ground lift even during phantom power operation. Metal case 110 x 73 x 42 mm. |
Palmer PAN 03
19" DI Box 4-Channel active
Active 4-channel DI box. Each channel has a jack input with a parallel output for passing through the signal. An attenuation switch (-30 dB) allows either a line or loudspeaker signal to be connected.Active 4 x DI box, 19" format. Technical specitications identicl to the PAN-02, however, the PAN-03 is built for mains operation. All connections and switches are located on the front panel, an additional parallel XLR output is located in back. 19 inch rack-mount format, 1 rack space, 90 mm front to back.
Product type
DI Boxes
Type
active
Channels
4
Inputs
4
Input connectors
6.3 mm jack
Max. input level
+ 45 dBu
Input impedance
(@ 60 Hz) 1 M Ohm(s)
Input pad
0 / -30 dB
Outputs
4 (+ 4 parallel XLR outs)
THRU outputs/channel
1
Output connectors
6.3 mm jack , XLR
Max. output level
+ 10 dBu
Output impedance
600 Ohm(s)
Frequency response
10 - 20000 Hz
Transformer balanced
Yes
Ratio
10 : 1
Indicators
Power
Controls
attenuator , ground lift
Operating voltage
external
Cabinet material
sheet steel
Cabinet surface
Powder coated
Width
480 mm
Width
19 "
Depth
90 mm
Height
45 mm
Height
1 U
Weight
1,6 kg
|
The Stewart ADB-1 is a single channel active direct box that allows an unbalanced source to
directly feed a balanced input. Musical instruments, tape recorders, VCRs and sound projectors
can be run "direct" to the mixing console, avoiding unnecessary degradation of sound quality.
The ADB-1 operates on either phantom power or a 9-volt battery.
FEATURES:
Flat response
Low distortion
Low noise
Wide dynamic range
No transformer
RF protection on input and output
Switchable ground isolation
Flush mounted slide switches |
DOD AC 275 Active Direct Box with Switchable Ground Lift and Attenuator-2nd Hand- The AC 275 is an active, phantom powered direct box. Unlike a passive DI where the frequency response of the signal can be altered depending on the connected impedance, an active DI buffers the input signal with an amplifier. This assures that the sound source will reach the mixer balanced and noise-free. Housed in a cast alloy chassis, the AC 275 supplies two, high impedance, unbalanced 1/4" jacks and one low impedance balanced XLR jack. It operates with battery or phantom power.
Key Features
| ?![]() | Active direct box | ?![]() | Allows a hi impedance unbalanced source to directly feed a low impedance balanced input | ?![]() | Flat frequency response | ?![]() | Connects guitar pickups, microphones or electric instruments to a recording or P.A. console without audio quality loss | ?![]() | Internal pad for speaker level input | ?![]() | Operates with battery or phantom power | ?![]() | Ground lift switch eliminates typical ground loop problems | ?![]() | Rugged, road-proof cast alloy chassis |
|
Reviews
There are no reviews yet.