Q4 audio DPF Series User manual

Features
Switching class D output stage.
Fully symmetrical and balanced modulator for unsurpassed accuracy and cross
channel separation.
Open input architecture for future expansion. The standard PIM-SIM1 input module
provides:
Inputs on Neutrik®Combo connectors or Phoenix screw terminals.
Parallel link outputs on XLR-3M for easy routing of multiple amplifiers.
Selectable high pass filters with 30 and 50Hz second order high pass filter
characteristic.
Instant recovery circuit eliminates stitching of the output when recovering from
clipping or overload.
EFL®(Extended Feedback Loop) technology makes it possible to take the
feedback for the amplifier right from the loudspeaker terminals, offering
unprecedented control of the loudspeaker, independent on loudspeaker cable
length. The amplifier can be used as a normal amplifier without any
inconveniences simply by not connecting the EFL sense inputs.
Selectable clip limiter with selectable response time.
Minimum sample frequency selection.
Protection against over-dissipation, open or short circuit and HF or DC at the
output. The amplifier will remain in protect mode with the power supply shut off in
case of undervoltage at the mains input.
Outputs on touch proof Neutrik®Speakon connectors. The individual channel and
bridge output connectors have integral sensing inputs for the EFL circuit.
High efficiency ZCS/ZVS switchmode power supply for minimum weight and low
electromagnetic emission.
Extensive power line filtering for minimal interference.
Provision for remote AC power control.
Soft start minimises current surge on power-on enabling multiple amplifiers to be
switched on simultaneously from the same wall socket.
High efficiency cooling system. The power transistors are directly mounted onto
individual heatsinks eliminating the high thermal resistance of electrical insulators.
This reduces component temperatures and extends the life of the power
components.
Four temperature-proportional speed fans for quiet operation.
Front to back air flow.
Easily removable air filter on the front eliminates dust buildup inside the unit.
CLASS D POWER AMPLIFIERS
DPF SERIES
Q4audio is a product of:
SUMMIT ENGINEERING N.V.
Tongersesteenweg 190
3800 Sint-Truiden Belgium
Tel.: [phone]
Fax.: [phone]
[email protected]
he Q4audio DPF series is a
new breed of advanced
professional power amplifiers
incorporating low weight and
premium audio performance.
The newest technology switching
CLASS D output stage and high
efficiency resonant power supply in
an aluminium chassis optimise
sonic performance, reliability and
portability.
Unlike many other lightweight
amplifier designs, the DPF series
has high energy reserves on both
the primary and secondary side of
the high frequency power trans-
former giving it massive low-end
response.
Model Watts per channel
8 Ohm 4 Ohm 2 Ohm
DPF 20 450 800 1.100
DPF 30 600 1.100 1.600
DPF 40 800 1.500 2.200
DPF 60 1.200 2.100 3.100
READY / PROTECTREADY / PROTECT
SIGNALSIGNAL
BRIDGEBRIDGE
CLIP / NLRCLIP / NLR
CH 2CH 2 -dB CH 1CH 1 -dB-dB
TEMP LIMIT / TCLTEMP LIMIT / TCL
SUPPLY OVLSUPPLY OVL STANDBY / ONSTANDBY / ON
00
oooo
22
44
66
88
1010
1212
1414
1818
2424
00
22
44
66
88
1010
1212
1414
1818
2424
REMOTE
ACTIVE CALL
PROFESSIONAL POWER AMPLIFIER

Model DPF20 DPF30 DPF40 DPF60
Min. output power per channel into 2 ohms 1100W 1600W 2200W 3100W
1 kHz sine wave, THD < 1%, both channels driven
Min. output power per channel into 4 ohms 800W 1100W 1500W 2100W
1 kHz sine wave, THD < 1%, both channels driven
Min. output power per channel into 8 ohms 450W 600W 800W 1200W
1 kHz sine wave, THD < 1%, both channels driven
Min. output power in bridge mode into 4 ohms 2200W 3200W 4400 W 6200W
1 kHz sine wave, THD < 1%
Min. output power in bridge mode into 8 ohms 1500W 2200W 3000 W 4200W
1 kHz sine wave, THD < 1%
Typical THD+N < 0.02%
1 KHz -3dB output power
SMPTE intermodulation distortion < 0.05%
60 Hz - 7 KHz 4:1 at -3dB output power
Dynamic intermodulation distortion < 0.05%
30 KHz bandwidth at -3dB output power
Frequency range + 0 dB / - 0.5 dB
20 Hz - 20 kHz at nom. output power
Small signal frequency response 5Hz - >50 kHz
-3dB; Load impedance 2 - 16 Ohms
Large signal bandwidth 35 kHz
Rise time 8.3us
Damping factor > 3000 :1 (EFL used)
1 KHz referred to 8 ohms
Max voltage gain +36 dB
Noise interference < -105 dB
22 Hz - 22 KHz rms A weighted, referred to nominal output power
Crosstalk < -70 dB
1 KHz / 8 ohms
Input CMRR > 80 dB
100 Hz
Output DC offset voltage < ±30 mV
Input impedance 10 Kohms unbalanced / 20 Kohms balanced
Input connectors 1/4" phone jack / XLR compound receptacle, parallel XLR male
paralleled Phoenix screw terminals
Output connectors 1 x 4-pole Speakon per channel with integral EFL sense inputs
1 x 4-pole Speakon for bridged output with integral EFL sense inputs
1 x 4-pole Speakon with both channel outputs
Cooling Forced cooling with 4 variable speed fans / front to rear airflow
Mains supply 115V / 230V ±10% AC 50/60Hz
Dimensions Width: 482 mm, Height: 88.9 mm, Depth: 350 mm
(mounting base to connector panel)
Net weight 8,2kg 8.5kg 8.7kg 9kg
Shipping weight 10.2kg 10.5kg 10.7kg 11kg
Standards: Safety: EN60065
EMC: EN55103-1/EN55103/2/E2/E3
Note: Distortion measurements with AES-17 low pass filter.
TECHNICAL SPECIFICATIONS
In keeping with our policy of continued
improvement, Q4audio reserves the right
to change features and specifications
without prior notice.
www.Q4audio.com
CONFIGURATION
WARNING:
RISK OF HAZARDOUS ENERGY!
MAKE PROPERSPEAKERCONNECTIONS - SEE MANUAL BEFORE USE.
MAINS FUSE
MAINS IN
POWER
WARNING: TO REDUCE THE RISKOF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT
TO RAINOR MOISTURE. NO USERSERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
PERSONNEL.READ INSTRUCTIONMANUAL
CAREFULLY BEFORE USE.
!
AVIS
RISQUE DE CHOC
ELECTRIQUE
NE PAS OUVRIR
CAUTION
RISK OF ELECTRIC
SHOCK
DO NOT OPEN
ATTACH TYPE LABEL TO THIS
LOCATION. THIS LABELCONTAINS
IMPORTANT SAFETY INFORMATION
ANDMUST NOT BEREMOVED.
REPLACE LABEL IN CASE IT GOT
DAMAGED OR LOST.
CH1ON/OFF
CH1SLOW
CH2SLOW
CH2ON/OFF
35 70kHz
CH2ON/OFF
BRIDGE
L
O
C
K
L
O
C
K
L
O
C
K
L
O
C
K
L
O
C
K
CLIP LIMITERFSMIN
ON
BRIDGE MODE:
USECH1 INPUT ANDLEVEL
CONTROL. CH2INPUTAND
LEVEL CONTROL INACTIVE.
BRIDGE /SENSECH1 /CH2 CH2 / SENSECH1 /SENSE
ON
OUT -
SENSE +
SENSE -
OUT+
CH1/SENSE
CH2/SENSE
BRIDGE/SENSE
1 +
1 -
2 +
2 -
CH1OUT -
CH2OUT +
CH2OUT -
CH1OUT +
SPEAKON WIRING
CH1/ CH2
CH1ON/OFF
SEEVOLTAGE / POWER
RATINGON TYPE LABEL
CLASS 1 EQUIPMENT: MUSTBE EARTHED!
CAUTION:
FIRE HAZARD!
REPLACE ONLY
WITH SAME FUSE
TYPE AND RATING
-SEE TYPE LABEL.
P
I
N
12 3 4 5 6 7 8
+
CH1
INPUT
INPUT
LINK / OUT
+
CH2
INPUTLINK / OUTGND
1
2
3
SLEEVE
TIP
RING
GND
+
-
PARALLEL INPUTS
CH1HP FILTER (ON/OFF) CH2HP FILTER (ON/OFF) CH1HP FREQ. 50Hz 30Hz
INPUT
12 3
ON
CONFIGURATION
INPUT IMPEDANCE: 20K BALANCED
10KUNBALANCED
MODULE:PIM - SIM-1
12 3 4 5 6
CH2HP FREQ. 50Hz 30Hz
DPF 60
Serialnr.: DPF60-01AA-0001
Made in Belgium, EU
FUSE: xxx A T / 250 V
Power req.: 230V AC 50/60Hz 4.000W
DPF SERIES