The UPA192 is a digital three channel amplifier equipped with two analog power stages and one switched amplifier.
The technical data given here are valid at room temperature (+20°C/68°F), maximum gain (0dB) and power supply of nominal 230V (200V to 264V, 50Hz +/3%), other wise noted. dBvalues given in brackets (5dB) are valid for the actual measured and are scaled on the source, not on the UPA192. Software version V1.010 dated 30.12.2009
Features of the Analog MidRange Power Amplifier Output (APA1):
Output voltage maximum (0dB): 50Vss = 25.0dBV @ 1kHz 3.9Ω resistive
Output voltage maximum (2dB): 40Vss = 23.0dBV @ 1kHz 1.95Ω resistive
Output power sinus maximum (0dB): 80W CW each channel @ 1kHz 3.9Ω resistive
Output power sinus maximum (2dB): 100W CW each channel @ 1kHz 1.95Ω resistive
Output power (0dB) pulse Gaussian distribution 60Hz Sinus: 103W each channel @ 1.95Ω resistive 30% duty cycle
Maximum output current (short circuit limitation): +/12A DC up to 700Hz
Rest after exceeded maximum output current: 1sec.
Output impedance DC  100Hz, 400Hz, 1kHz, 2kHz: 0.50mΩ, 0.62mΩ, 1.0mΩ, 1.3mΩ
Output impedance 5kHz, 10kHz, 20kHz: 2.5mΩ, 4.4mΩ, 8.0mΩ
Damping factor DC  100Hz, 400Hz, 1kHz, 2kHz: 84dB, 82dB, 80dB, 76dB (8Ω load)
Damping factor 5kHz, 10kHz, 20kHz: 70dB, 65dB, 60dB (8Ω load)
THD+N vs frequency DC3kHz Aweighted (1dB): < 90dB
Suppression of mains hum @ (10dB) +15dBV = 8W <130dBc @ 50Hz; <130dBc @ 100Hz; <130dBc @ 150Hz;
Suppression of mains hum @ (0dB) +25dBV = 80W <135dBc @ 50Hz; <135dBc @ 100Hz; <135dBc @ 150Hz;
DCoffset voltage at the output: +/ 100 mV max.
Coupling (balanced): DC (no lower corner frequency, no coupling capacitors)
Frequency slope DC  22kHz incl. D/Aconverter: +0dB / 0.40dB
Features of the Analog HighRange Power Amplifier Output (APA2):
Output voltage maximum (0dB): 25Vss = 19.0dBV @ 1kHz 3.9Ω resistive
Output voltage maximum (2dB): 20Vss = 17.0dBV @ 1kHz 1.95Ω resistive
Output power sinus maximum (0dB): 20W CW each channel @ 1kHz 3.9Ω resistive
Output power sinus maximum (2dB): 25W CW each channel @ 1kHz 1.95Ω resistive
Output power (0dB) pulse Gaussian distribution 60Hz Sinus: 26W each channel @ 1.95Ω resistive 30% duty cycle
Maximum output current (short circuit limitation): +/12A DC up to 700Hz
Rest after exceeded maximum output current: 1sec.
Output impedance DC  100Hz, 400Hz, 1kHz, 2kHz: 0.25mΩ, 0.31mΩ, 0.5mΩ, 0.7mΩ
Output impedance 5kHz, 10kHz, 20kHz: 1.3mΩ, 2.2mΩ, 4.0mΩ
Damping factor DC  100Hz, 400Hz, 1kHz, 2kHz: 90dB, 88dB, 86dB, 82dB (8Ω load)
Damping factor 5kHz, 10kHz, 20kHz: 76dB, 71dB, 66dB (8Ω load)
THD+N vs frequency DC3kHz Aweighted (1dB): < 90dB
Suppression of mains hum @ (10dB) +9dBV = 2W <130dBc @ 50Hz; <130dBc @ 100Hz; <130dBc @ 150Hz;
Suppression of mains hum @ (0dB) +19dBV = 20W <135dBc @ 50Hz; <135dBc @ 100Hz; <135dBc @ 150Hz;
DCoffset voltage at the output: +/ 50 mV max.
Coupling (unbalanced): DC (no lower corner frequency, no coupling capacitors)
Frequency slope DC  22kHz incl. D/Aconverter: +0dB / 0.40dB
Digital features of the both Analogue Power Amplifiers (APA1 & 2):
Sampling frequency of the D/Aconverter: 192kHz
Quantization: 24Bit
Operating frequency of the D/Aconverter: 24.576MHz (512x 48kHz)
Number of D/AConverters each channel: 2, (CS4392)
Analog features of the LowRange Switched Power Amplifiers (DPA1):
Output voltage maximum (0dB): 70Vss = 28.0dBV @ 500Hz 3.9Ω resistive
Output voltage maximum (2dB): 46Vss = 24.2dBV @ 500Hz 1.95Ω resistive
Output power sinus maximum (0dB): 160W CW each channel @ 500Hz 3.9Ω resistive
Output power sinus maximum (2dB): 135W CW each channel @ 500Hz 1.95Ω resistive
Output power (0dB) pulse Gaussian distribution 60Hz Sinus: 210W each channel @ 1.95Ω resistive 30% duty cycle
Maximum output current (short circuit limitation): +/15A DC
Rest after exceeded maximum output current: 0.5sec
Output impedance DC  400Hz, 700Hz, 1kHz, 2kHz: 250mΩ, 320mΩ, 500mΩ, 800mΩ (open loop)
Damping factor DC  400Hz, 700Hz, 1kHz, 2kHz: 30dB, 28dB, 25dB, 20dB (8Ω load)
THD+N vs frequency DC  400Hz Aweighted (1dB): < 62dB
THD+N vs frequency 400Hz  7.0kHz Aweighted (1dB): < 51dB
Suppression of mains hum @ (0dB) +28dBV = 160W <115dBc @ 50Hz; <115dBc @ 100Hz; <115dBc @ 150Hz;
DCoffset voltage at the output: +/ 50 mV max.
Coupling (balanced): DC (no lower corner frequency, no coupling capacitors)
Freq. slope DC8.7kHz with Σ/Δconverter at 6Ω res. load: +0.70 dB @ 5.2kHz / 3dB @ 8.7kHz
Peaking at 3.9Ω resistive load, 3dBpoint: No peaking, 6.8kHz
Peaking at 5.9Ω resistive load, 3dBpoint: +0.70dB at 5.2kHz, 8.7kHz
Peaking at 7.8Ω resistive load, 3dBpoint: +2.0dB at 6.2kHz, 9.5kHz
Filter slope of the output filter at 5.9Ω resistive load: 18dB/oct.
Digital features of the Switched Power Amplifiers (DPA1):
Sampling frequency of the Σ/Δconverter: 192kHz
Quantization: 24Bit
Operating frequency of the Σ/ΔWandlers: 24.576MHz (512x 48kHz)
Switching frequency of the output stages: 384kHz
Features of the signal processor section (DSP):
Method of audio manipulation: Fast Convolution (FFT – Multiplication – IFFT)
Frequency resolution: 23.4375Hz
Length of FFT blocks: 43msec
Total delay caused by the Fast Convolution: 43msec
Available filter slope functions: 1 Oct., 1/2 Oct., 1/3 Oct., to 1/12 Oct.
Available filter characteristics: low pass, band pass, high pass
Number of available filter channels: 3
Range of gain slider: 20.0dB to +10.0dB
Step size of gain slider: 0.1dB
Graphical display frequency range: 10Hz to 96kHz
Graphical display gain range: 36dB to +10dB (positive values automatic adjusted)
Digital inputs:
Number of digital audio inputs: 3, Toslink, XLR (balanced) and Cinch (unbalanced)
Sampling frequency of all digital inputs: 32kHz to 192kHz stepless
Quantization of all digital inputs: 2x 16Bit to 2x 24Bit, Stereo
Impedance of the Cinch (unbalanced) digital input: 50Ω or 75Ω (DIPswitch setting), ACcoupled
Maximal input level on the Cinch (unbalanced) digital input: 2.0Vpp
Impedance of the XLR (balanced) digital input: 110Ω (transformer input)
Maximal input level on the XLR (balanced) digital input: 4.0Vpp
Deviation of the XLRground against UPAchassis: +/6V maximal DCcoupled
Digital output:
Number of digital audio outputs: 1, Cinch (unbalanced)
Sampling frequency of the Cinch output: 96kHz
Quantization of the Cinch output: 2x 24Bit, Stereo
Impedance of the Cinch (unbalanced) digital output: 50Ω or 75Ω (DIPswitch setting), DCcoupled (+1.5V)
Analog inputs:
Number of analog audio inputs: 4, XLR (balanced) and 3x Cinch (unbalanced)
Sampling frequency for all analog inputs: 192kHz
Quantization of all analog inputs: 24Bit, Mono
Frequency slope DC22kHz: +0 / 0.40dB
THD+N vs frequency DC22kHz unweighted (1dB): < 90dB
Signal to noise ratio unweighted: > 96dB
Coupling on all analog inputs: DC (no lower corner frequency, no coupling capacitors)
Input voltage max. (0dB) on the XLR (bal.) analog input: 2.3Vrms = +7dBV=+9.3dBu
Impedance of the XLR (balanced) analog input: 2x 56kΩ // <10pF against UPAchassis
Acceptable DC offset XLR (balanced) against UPA ground: +/6V (+/200mA max.)
Acceptable DC input offset voltage XLR (balanced): TBD
Input voltage max. (0dB) on all Cinch (unbal.) analog inputs: 2.3Vrms = +7dBV=+9.3dBu
Impedance of all Cinch (unbalanced) analog inputs: 56kΩ // <10pFagainst UPAchassis
Acceptable DC input offset voltage Cinch (unbal.): +/ 100 mV max.
Other connections:
Loudspeaker connections: 6x High precision Furutech FP800B(G) gold plated
USB connection: 1x device
Standard of USB connection: USB 1.1
Power supply connector: 3pole standard IEK mains socket
Parameters of power supply:
Mains single phase (nominal): 100V to 240V, 50 to 400Hz
Mains for operation (physically): 90V to 264V, 47 to 420Hz
Power consumption AutoPowerOff mode: ca. 7.0W @ 230V
Power consumption in operation without modulation: 48W to 55W
Power consumption in operation without DPA active and without modulation: 42W to 49W
Power consumption switched off (standby): 0W
Power consumption operating under full modulation: 450W max.
Temperatures:
Housing temperature operating (room temperature: +20°C/68°F): +10°C/+50°F to +45°C/+104°F
Regular operating temp. on top of the cooler at room temperature: +10°C/+50°F to +50°C/+113°F
Maximum operating temperature in the middle of top of the coolers: +65°C/+149°F
Temperature range storage (transportation also): 0°C/+32°C to +70°C/+158°F
Mechanical Figure
Type of housing: Aluminum (2.5mm), top & bottom: 10mm (milled)
Threaded connections (for service only): 8x TORX 25 in top & bottom cover
Available colour: Alnature anodically oxidized
Dimensions incl. binding posts, no feet in mm (BxHxT): 204 x 220 x 396
Weight: ca. 9kg/19.8lbs
Weight of the packaging and accessories: ca. TBD
Maximum weight with packaging and accessories: ca. TBD
Safety and CEApproval:
Electrical Safety: according EN 60065: 2002
Safety against squirting water: according IPX4
Emission: EN 55013: 2000, EN 6100032: 2000 and EN 6100033: 1996
Disturbing influence: EN 55020: 2000
Electrical discharge: EN 6100061: 2001
Features of the AdvancedOption:
Frequency range: DC to 24kHz
Variables: magnitude and phase plus room correction data
Range for magnitude: 12.0dB to +12.0dB
Range for room correction data: 90.0dB to +12.0dB
Step size for magnitude: 0.1dB
Range for phase: +/2000° (no modulo function)
Step size for phase: 1°
Range for delay: 0msec to 1000msec
Step size for delay: 0.01msec
Functions: Store, Reload, Export, Import, 3x Clear (separately)
Format of export/import: *.TXT (for use with an Excelsheet)
Size of the export/import table: 1024 lines by 3 values
State of information: 17. March 2010. Data given are subject of change without notice.
