Chord DI-A1 Manual

Chord Hi-Fi system DI-A1

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DI-A1
Active Direct Injection Box
Item ref: 93 173.2 UK
User Manual
Introduction
Thank you for choosing the Chord DI-A active D.I. box as part of your audio signal chain. The DI-A1 converts high impedance audio from instruments 1
or line outputs to w impedance balanced output to be fed directly into a mixing console or amplifier input. This is an active D . box, which uses aa lo .I n
inbuilt buffer amplifier to boost the signal for long cable runs without signal degradation.
Input panel Output panel
Hi- put6.3mm Z in
INPUT: Hi- put LOW BATT: Low battery indicator 6.3mm Z in
PAD: Attenuation switch dc INPUT: Input for optional 12Vdc adaptor 12V
THRU Hi-Z out W-Z OUT 600 : Balanced XLR output : 6.3mm LO Ω
GND GND: - OAT-LIFT switch 9V BATT: PP3 battery compartment FL
Operation
To power the DI-A1, switch on phantom power to the XLR input on the mixing console or insert a 9V PP3 battery into the battery compartment.
Alternatively, connect a 12Vdc (200mA min.) power supply to the 12Vdc INPUT jack.
Connect the instrument ( other high impedance audio source) to the DI- via the 6.3mm INPUT jack. or A1
To feed to backline amplifier or further high impedance input, use the adjacent 6.3mm THRU jack. a
Connect the L -Z OUT connection directly to the mixing console or amplifier input using balanced XLR leads. OW
High level input signals can be attenuated so as not overdrive the mixer or amp inputs by using the PAD switch. to
0dB setting leaves the input unaffected, whereas -20dB and -40dB settings reduce the signal level progressively.
The DI-A1 has an inbuilt noise filter to help eliminate RF and mains hum. In me cases, it is necessary to isolate the signal ground to help reduce so
such noise and the GND switch has 3 options to help with this. GND setting is fully grounded, FLOAT setting isolates the signal ground from the case
but retains the noise filter and LI setting isolates the signal ground altogether without the filter. FT
In the event of noise appearing in the signal chain, try these settings to see if FLOAT or LIFT can improve the signal quality.
Specifications
Errors and omissions excepted.
Copyright© 2019. AVSL Group Ltd.
Power supply
9V battery (PP3 not supplied), 12Vdc (optional) or 9-52V
phantom power
Input
6.3mm jack (unbalance d)
Outputs
XLRM (balanced), 6.3mm jack through (unbal)
Input impedance
>100k Ohms
Output impedance
600 Ohms
Controls
0/-20/-40dBu pad & Ground-Float-Lift switch
Dimensions
103 x 70 x 45mm
Weight
2 g 43
Disposal: The “Crossed Wheelie Bin” symbol on the
product means that the product is classed as Electrical or
Electronic equipment and should not be disposed with other
household or commercial waste at the end of its useful life.
The goods must be disposed of according to your local
council guidelines.

Produkt Specifikationer

Mærke: Chord
Kategori: Hi-Fi system
Model: DI-A1

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