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. dB-values 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 Mid-Range Power Amplifier Output (APA-1):

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 DC-3kHz A-weighted (-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;

DC-offset voltage at the output: +/- 100 mV max.

Coupling (balanced): DC (no lower corner frequency, no coupling capacitors)

Frequency slope DC - 22kHz incl. D/A-converter: +0dB / -0.40dB

Features of the Analog High-Range Power Amplifier Output (APA-2):

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 DC-3kHz A-weighted (-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;

DC-offset voltage at the output: +/- 50 mV max.

Coupling (unbalanced): DC (no lower corner frequency, no coupling capacitors)

Frequency slope DC - 22kHz incl. D/A-converter: +0dB / -0.40dB

Digital features of the both Analogue Power Amplifiers (APA-1 & -2):

Sampling frequency of the D/A-converter: 192kHz

Quantization: 24Bit

Operating frequency of the D/A-converter: 24.576MHz (512x 48kHz)

Number of D/A-Converters each channel: 2, (CS4392)

Analog features of the Low-Range Switched Power Amplifiers (DPA-1):

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 A-weighted (-1dB): < -62dB

THD+N vs frequency 400Hz - 7.0kHz A-weighted (-1dB): < -51dB

Suppression of mains hum @ (0dB) +28dBV = 160W <-115dBc @ 50Hz; <-115dBc @ 100Hz; <-115dBc @ 150Hz;

DC-offset voltage at the output: +/- 50 mV max.

Coupling (balanced): DC (no lower corner frequency, no coupling capacitors)

Freq. slope DC-8.7kHz with Σ/Δ-converter at 6Ω res. load: +0.70 dB @ 5.2kHz / -3dB @ 8.7kHz

Peaking at 3.9Ω resistive load, -3dB-point: No peaking, 6.8kHz

Peaking at 5.9Ω resistive load, -3dB-point: +0.70dB at 5.2kHz, 8.7kHz

Peaking at 7.8Ω resistive load, -3dB-point: +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 (DPA-1):

Sampling frequency of the Σ/Δ-converter: 192kHz

Quantization: 24Bit

Operating frequency of the Σ/Δ-Wandlers: 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 (DIP-switch setting), AC-coupled

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 XLR-ground against UPA-chassis: +/-6V maximal DC-coupled

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 (DIP-switch setting), DC-coupled (+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 DC-22kHz: +0 / -0.40dB

THD+N vs frequency DC-22kHz 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 UPA-chassis

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 UPA-chassis

Acceptable DC input offset voltage Cinch (unbal.): +/- 100 mV max.

Other connections:

Loudspeaker connections: 6x High precision Furutech FP-800B(G) gold plated

USB connection: 1x device

Standard of USB connection: USB 1.1

Power supply connector: 3-pole 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 Auto-Power-Off 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: Al-nature 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 CE-Approval:

Electrical Safety: according EN 60065: 2002

Safety against squirting water: according IPX4

Emission: EN 55013: 2000, EN 61000-3-2: 2000 and EN 61000-3-3: 1996

Disturbing influence: EN 55020: 2000

Electrical discharge: EN 61000-6-1: 2001

Features of the Advanced-Option:

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 Excel-sheet)

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.