Specifications of the DCAD

Environmental Specifications*
Operating temperature +5 à 30 deg. C
Relative humidity 20 à 80 %
Altitude** 0 à 3000m

*Recommended operating
** Above sea level


Physical Specifications
Dimensions (mm) 239.8 x 161.1 x 87.8
Dimensions of the box (mm) 222.3 x 146.6 x 54.9
Weight 1770g
Supply External 36 Vac - Lefson BT36 - 4 pins cable
Power 6.1W


Peak Level

Terms : load = 600ohms ; frequency = 1000Hz
INSTR input +25dBu (internal limiter)
SPEAKER input +42dBu
MIC input +11dBu (PAD out + internal limiter)
LINE input +25dBu (PAD out + internal limiter)
ISO1 to ISO4 outputs +23dBu
5:1 DIRECT output +9dBu


Impedance

Terms : frequency = 1000Hz
INSTR input 1.7M ohms
SPEAKER input 68k ohms
MIC input 1k ohms
LINE input 3k ohms
ISO1 to ISO4 outputs 2/10k/22k/33k/47k/82k ohms
5:1 DIRECT output 0.08 ohms


Frequency Response

Terms : - measurement reference = 1000Hz
- source = 1 Volt RMS ; 50ohms
INSTR input --> ISO1 to ISO4 outputs +0.9dB ; 20Hz to 100kHz
INSTR input --> 5:1 DIRECT output +/-0.3dB ; 20Hz to 100kHz
LINE input --> ISO1 to ISO4 outputs +0.5/-3dB ; 20Hz to 60kHz
LINE input --> 5:1 DIRECT output -3dB ; 20Hz to 60kHz


Gain

Terms : - source = 1 Volt RMS/50ohms ; frequency = 1000Hz
INSTR input --> ISO1 to ISO4 outputs 1.004
INSTR input --> 5:1 DIRECT output 0.194
SPEAKER input --> ISO1 to ISO4 outputs 0.0099
SPEAKER input --> 5:1 DIRECT output 0.0019
MIC input --> ISO1 to ISO4 outputs 4.990
MIC input --> 5:1 DIRECT output 0.970
LINE input --> ISO1 to ISO4 outputs 1.247
LINE input --> 5:1 DIRECT output 0.241


Signal to Noise Ratio

Terms : - source = +12dBu/600ohms ; frequency = 1000Hz
- 80kHz low-pass filter
INSTR input --> ISO1 to ISO4 outputs < 94dB
INSTR input --> 5:1 DIRECT output < 91dB
LINE input --> ISO1 to ISO4 outputs < 96dB
LINE input --> 5:1 DIRECT output < 91dB


Common Mode Rejection Ratio (CMRR)

Terms : - source = +18dBu/50ohms
- ground referenced
- 80kHz low-pass filter
MIC input < 95dB @ 20Hz
< 75dB @ 1kHz
< 55dB @ 10kHz
LINE input < 90dB @ 20Hz
< 70dB @ 1kHz
< 50dB @ 10kHz


Total Harmonic Distortion (THD)

Terms : - source = 1 Volt RMS/600ohms ; frequency = 1000Hz
- 80kHz low-pass filter
INSTR input --> ISO1 to ISO4 outputs < 0.009 %
INSTR input --> 5:1 DIRECT output < 0.008 %
LINE input --> ISO1 to ISO4 outputs < 0.016 %
LINE input --> 5:1 DIRECT output < 0.014 %


Inputs/Outputs Types
INSTR input Unbalanced
SPEAKER input Unbalanced
MIC/LINE input Balanced
THRU output Unbalanced
ISO1 to ISO4 outputs Unbalanced / Balanced – Floating
5:1 DIRECT output Balanced – Floating


Types of Connections
36V AC power supply BINDER 693
PIN 1 : AC 36V (live)
PIN 2 : AC 36V (neutral)
PIN 3 : NC
PIN E : Earth
INSTR input NEUTRIK - JACK TS – 6.35mm
TIP : Signal
SLEEVE : Ground
SPEAKER input NEUTRIK - JACK TS – 6.35mm
TIP : Signal
SLEEVE : Ground
MIC/LINE input NEUTRIK - JACK TRS – 6.35mm
TIP : (+) Signal
RING : (-) Signal
SLEEVE : Ground
THRU output NEUTRIK - JACK TS – 6.35mm
TIP : Signal
SLEEVE : Ground
ISO1 to ISO4 outputs NEUTRIK - JACK TS/TRS – 6.35mm
TIP : (+) Signal
RING : (-) Signal
SLEEVE : NC
5:1 DIRECT output NEUTRIK - 3 points XLR
PIN 1 : NC
PIN 2 : (+) Signal
PIN 3 : (-) Signal

As part of the evolution of the product, these features may have to change.

 

Specifications of the BT36

The Lefson BT36 is a 36V alternative low voltage power supply, dedicated to the Lefson DCAD. The BT36 works with both 115V and 230V mains voltages. Two voltage selectors "VOLTAGE SELECTION" allow this choice. They must be properly switched depending on the value of the voltage used. In all cases the two slide switches must have the same position.

A fuse and varistor protection are included. The aluminum housing of the BT36 is connected to earth.

The electrical connection is made via a standard IEC C14 male socket. The connection to the DCAD is made by using a female Binder 693 type socket.

Environmental Specifications*
Operating temperature +5 à 30 deg. C
Relative humidity 20 à 80 %
Altitude** 0 à 3000m

*Recommended operating
** Above sea level


Physical Specifications
Dimensions (mm) 182.7 x 137.5 x 68.2
Dimensions of the box (mm) 171.5 x 120.6 x 54.9
Weight 1060g
Supply 115/230V AC
Current 0.26/0.13A
Frequency 50/60 Hz
Output voltage 36V AC
115V powering fuse T315mAL250v (temporised)
230V powering fuse T160mAL250V (temporised)


Types of Connections
POWER supply Male socket - IEC C14
36VAC SUPPLY low voltage output Female socket – BINDER 693
PIN 1 : AC 36V (live)
PIN 2 : AC 36V (neutral)
PIN 3 : NC
PIN E : Earth


Note : in the interest of the development of the device, characteristics and/ or drawing may change without notice.

Accessories : Luxurious carrying case, 36Vac 4 pins cable, IEC mains cable with European, English or American standards, User Manual, Warranty Card.