Qty Reference Designator
15
162-50289001-e
162-80098201-e
175-9f40hr2-e
CABLE ASS'Y 280mm AWG26 WHT (RoHS)
90mm 28AWG (RoHS)
wire connector & base 40PIN PITCH=2.54mm HR2*40 (RoHS)
190-16tl074cn-e
197-031n4148-e
192-027c1815gr-e
197-031n4148-e
Miscellaneous
I .C TL074cm st QUAD OP-AMP
diode 100mA 75V SIGNAL 1N4148 ROHM (RoHS)
transistor 2SC1815GR TOSHIBA (RoHS) NPN
diode 100mA 75V SIGNAL 1N4148ROHM (RoHS)
130-3f104z503-e
132-103j503-e
135-3226m50-e
135-3476m25-e
Semiconductors
disc capacitor 0.1U 50V +80/-20% (RoHS)
mylar capacitor 0.01uF 50V ±5% (RoHS)
electrolytic CAP. 22U 50V ±20% (RoHS)
electrolytic CAP. 47U 25V ±20% (RoHS)
110-16103j26-e
116-161132f26-e
110-16103j26-e
110-16183j26-e
110-16223j26-e
110-16273j26-e
110-16333j26-e
110-16472j26-e
110-16474j26-e
110-16751j26-e
Capacitors
Resistor 10K 1/6W ±5% CF 26mm (RoHS)
metal filmResistor 11.3K 1/6W ±1% MF 26mm (RoHS)
Resistor 10K 1/6W ±5% CF 26mm (RoHS)
Resistor 18K 1/6W ±5% CF 26mm (RoHS)
Resistor 22K 1/6W ±5% CF 26mm (RoHS)
Resistor 27K 1/6W ±5% CF 26mm(RoHS)
Resistor 33K 1/6W ±5% CF 26mm(RoHS)
Resistor 4.7K 1/6W ±5% CF 26mm (RoHS)
Resistor 470K 1/6W ±5% CF 26mm (RoHS)
Resistor 750Ω 1/6W ±5% CF 26mm(RoHS)
LIMITER PCB
Resistors
175-1d03v01-e
171-udhss124d-e
175-1c07v01-e
175-1d02v01-e
relay 5A 24V UDH-SS124D (RoHS)
wire connector & base 7PIN PITCH=2.5mm (RoHS)
wire connector & base 2PIN PITCH=3.96mm (RoHS)
wire connector & base 3 PIN PITCH=3.96mm JST-VH cut off the middle PIN (RoHS)
193-3m2520-e insulator TO-3P 25x20mm (RoHS)
323-AL-00020-0LAE HEAT SINK 65*32*31 AL
351-AM03014A094-E M3*14 machine screw black (RoHS)
352-AM03008D040-E3*8 B type ping screw black (RoHS)
361-FE-00051-0LAE transistor holder 14.2*8.0*5.2t=1.6mm (RoHS)
361-NYL-00054-0LAE transistor insulator pad (SW06002) (RoHS)
362-FE-00041-0LAE PCB support 11.75*8.5*12.5H(RoHS)
192-027c1815gr-e
192-201d882y-e
192-202b772y-e
192-991d669a-e
192-992b649t-e
197-00kbl405-e
197-031n4148-e
197-101n4002-e
Miscellaneous
transistor 2SC1815GR TOSHIBA(RoHS) NPN
transistor KSD882Y (RoHS) PNP
transistor KSB772Y (RoHS) PNP
transistor HI-SINCERITY HSD669A (RoHS) NPN
transistor HSB649T (RoHS) PNP
diode 4A 500V KBL405 (RoHS)
diode 100mA 75V SIGNAL 1N4148 ROHM (RoHS)
diode 1N4002TB (RoHS)
Part Number
POWER/MAIN PCB
Description
PS series PS28 subwoofer

Qty Reference Designator

2Q101,Q115,

1Q117,

1Q119,

1Q106,

1Q105,

1D110,

1D116,

1D104,

1RY101,

1P101,

1P102,

1P103,

2for Q107,Q108,

1back

1back

8R301,R303,R304,R308,R309,R314,R340,R344

1R302

2R310,R312

1R341

1R305

2R342,R343

1R307

2R311,R313

2C305,C306

2C302,C303

2C301,C340

1C304

1U301,

1back

2Q301,Q302

2D301,D302

1

1to SW301, P301,

Page 16
Image 16
Infinity PS28 service manual Qty Reference Designator 2 Q101,Q115 1 Q117 1 Q119 1 Q106 1 Q105, to SW301, P301

PS28 specifications

The Infinity PS28 is a standout model within the realm of audio technology, specifically tailored for music enthusiasts and audiophiles seeking an unparalleled listening experience. This state-of-the-art speaker system combines advanced engineering and premium materials to deliver exceptional sound quality and performance.

One of the main features of the Infinity PS28 is its innovative driver technology. Equipped with a high-efficiency 8-inch woofer, the PS28 offers deep, rich bass that remains clear and distortion-free, even at high volumes. The accompanying 1-inch tweeter provides crisp, detailed highs, ensuring that every note and frequency is reproduced with accuracy. This two-way speaker design creates a well-rounded audio profile that effectively balances low, mid, and high frequencies.

The Infinity PS28 also boasts cutting-edge materials in its construction. The woofer cone is made from a lightweight, rigid composite that enhances durability while minimizing unwanted vibrations. This contributes to a more impactful bass response, facilitating a rich soundstage that draws listeners into the music. Additionally, the cabinet is designed to reduce resonance, further improving the fidelity of sound produced.

In terms of connectivity, the PS28 is versatile and user-friendly. It comes equipped with multiple input options, including 5-way binding posts, allowing for easy integration with various audio systems. Whether you are setting it up in a home theater environment or connecting it to a high-fidelity stereo system, the PS28 easily adapts to different setups.

The speaker exhibits an impressive frequency response that spans from 40 Hz to 20 kHz, showcasing its ability to reproduce a wide range of sounds effectively. This wide range, combined with a sensitivity rating of 88 dB, allows the Infinity PS28 to perform excellently with a variety of amplifier power levels, making it accessible to both entry-level users and seasoned audiophiles alike.

The aesthetics of the PS28 are equally commendable. With a sleek and modern design, it fits seamlessly into any home décor while its elegant finish enhances its visual appeal. The speaker is also available in various color options, allowing users to choose a model that best suits their personal style.

In summary, the Infinity PS28 combines advanced driver technology, premium materials, wide connectivity options, and an aesthetically pleasing design, making it a compelling choice for anyone seeking to elevate their audio experience. Its ability to deliver outstanding sound quality and performance positions it as a worthy investment for music lovers and home entertainment enthusiasts.