User Manual

PA253 Stereo Power Amplier

Connection guide

SPECIFICATIONS:

Nominal Output Power 50 watts RMS @ 4 ohms

42 watts RMS @ 8 ohms

Power Stage Gain: 32.6 dB @ 8 ohms

31.4 dB @ 4 ohms

Input Impedance: 10k - 5Hz to 100kHz

Connection Output Impedance: 4 to 8 ohms speakers

Output Impedance: < 0.32 ohms from 20 Hz to 20 kHz

(Measured under 8 ohms)

Dampening factor: > 100

Frequency Response: 3Hz to 43kHz

Phase shift: 0 Deg.

Volume Max gain: 33.7 dB no load

THD: .015% @ 1KHz

Rise Time: < 0.9 µs

Slew Rate: > 20 V/µs, peak-peak

DC Output Voltage: ± 0 mV

Crosstalk: < - 95 dB from 20Hz to 20kHz

S/N Ratio: >100 dB unweighted

PWR: 24 VDC @ 4A (KS100DU) Included.

Power e󰀩ciency: 90%

Size: 5.5"w x 3.5"d x 1.25"h

Weight: 1.2 lbs

Indicator: 1 Power LED

Bellari

Salt Lake City, UT

1/23

What's in the box?

1 - PA253 proudly made in USA

1 - Owner's Manual

1 - 24V power supply KS100DU

1 - Love for audio, Decades of experience building and designing

0 - Eorts to change the minds of audiophiles

Volume

0 10

pwr

PA253

Stereo Power Amplifier

Input

PAGE 1
What's in the box? 1 - PA253 proudly made in USA 1 - Owner's Manual 1 - 24V power supply KS100DU 1 - Love for audio, Decades of experience building and designing 0 - Efforts to change the minds of audiophiles PA253 Stereo Power Amplifier 0 10 Volume Stereo Power Amplifier Input pwr PA253 SPECIFICATIONS: Nominal Output Power Bellari Salt Lake City, UT 1/23 50 watts RMS @ 4 ohms 42 watts RMS @ 8 ohms Power Stage Gain: 32.6 dB @ 8 ohms 31.
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Thank you for purchasing the Bellari PA253. We spent a considerable amount of time designing and developing the PA253. We hope you enjoy using the PA253, and that it makes listening to your music collection rewarding. We sincerely appreciate the opportunity to build a product for you and participate in your love of quality music and sound. We love what we do and we’re happy to help. All Bellari products are hand built in Salt Lake City, Utah by people who care about high quality music.