Pass Labs 1INT-30A specs

INT-30A Owners Manual

For maximum safety we suggest that the power cord should be the last cable installed on your power-amplifier.

You may, if you wish, substitute a 15-amp aftermarket power cord for the one we have supplied. Only use polarized power cords, which meet all local safety standards and carry acceptance marks from the local regulatory authority. The power cord should be attached to the amplifier prior to plugging into house power. Always place the rear-mounted switch in the off (down) position before plugging in this amplifier.

The amplifier’s voltage and current rating are indicated on the rear panel. It will be indicated as either 100 volts, 120 volts, 220 volts, 230 volts or 240 volts. The smaller Pass Laboratories power amplifiers, preamps and integrated amplifiers use a slow-blow 3AG (equivalent to 313 in EC markets) type fuse. The required value of the fuse will be indicated on the amplifier. The frequency rating of the AC line source is 50 to 60 Hz. Please verify that the amplifiers indicated voltage requirements are consistent with the supplied voltage and current at your location.

On the rear panel you will find both RCA and XLR type input connections for single-ended or balanced inputs. If you use the RCA input, be certain that the XLR connector has a gold shorting plug between pins 1 and 3, which connects the “minus” input to ground, otherwise the amplifier will not operate properly. If you lose this shorting plug, just contact the factory

– we give them away all the time.

The question comes up all the time – are balanced inputs (XLR) better than single-ended (RCA)? The answer is that balanced lines generally give lower noise and slightly less distortion. They are recommended unless your favorite source component has only RCA outputs.

Also on the rear panel are the output connections for the loudspeakers. On stereo amplifiers there is one pair per channel, and on mono amplifiers we provide two pairs wired in parallel to facilitate “bi-wiring” a loudspeaker. As you are probably familiar, the red one is positive polarity, and the black one is negative.

Please note that, being a balanced output device, both of these terminals are electrically live – neither is grounded and neither should not be treated as ground. This is particularly important if you are using the output of the amp to also drive a subwoofer amplifier or other active component. If there is any question, please contact the manufacturers of the products involved – both they and we will be happy to advise you.

If you happen to need a clean signal ground connection for any reason, we provide a dedicated 5 way binding post just for that on the rear of the amplifier.

1INT-30A specifications

Pass Labs is renowned for its high-quality audio equipment, and the Pass Labs 1INT-30A integrated amplifier exemplifies the company's commitment to excellence. This amplifier is designed for audiophiles seeking a blend of superior sound quality, innovative technology, and robust build.

At the heart of the 1INT-30A is its powerful Class A amplifier topology, which is one of the distinguishing features of Pass Labs products. Class A operation is known for its linearity and minimal distortion, providing a warm and natural sound. The 1INT-30A is capable of delivering 30 watts per channel into 8 ohms, which might seem modest compared to high-powered amplifiers, but the purity of the sound is where it shines. This amplifier can also drive speakers with lower impedances effectively, making it versatile for various audio setups.

One of the standout technologies featured in the 1INT-30A is its Fully Balanced Differential Circuitry. This design helps to minimize noise and interference, ensuring that the audio signal remains clear and accurate from input to output. This attention to detail in the circuit design is instrumental in delivering the pristine sound quality that Pass Labs is known for.

In addition, the 1INT-30A incorporates a high-quality volume control that ensures precise adjustments. The volume is not only easy to operate but also designed to maintain sonic integrity across its range, allowing users to enjoy dynamic performances with minimal compromise.

Another important aspect of the 1INT-30A is its exploitation of minimalist aesthetics combined with sturdy craftsmanship. The amplifier is housed in a beautifully crafted chassis with a front panel that is both elegant and user-friendly. The build quality reflects the high standard typical of Pass Labs, with an emphasis on longevity and reliability.

Connectivity options on the 1INT-30A include multiple analog inputs, allowing for integration with various audio sources like CD players and turntables, which makes it highly adaptable for different audio setups. The inclusion of a high-quality headphone output also adds to its versatility, catering to listeners who prefer private listening experiences.

In summary, the Pass Labs 1INT-30A represents a harmonization of innovative technology and superior sound engineering. From its powerful Class A output to its Fully Balanced Differential Circuitry, every aspect of the amplifier contributes to an exceptional listening experience. With elegant design and meticulous craftsmanship, the 1INT-30A is a testament to Pass Labs' dedication to producing high-fidelity audio equipment that satisfies the exacting demands of audiophiles.