Single wiring, English Bi-wiring, Bi-amping

Single wiring

Both the A38 and P38 are designed for bi-wiring, which is why there are duplicate speaker terminals on the back. For single wiring, we recommend that you use the lower set of speaker terminals on your amplifier. If each speaker has more than one pair of connecting terminals, use the terminals labelled LF or ‘Low Frequency’ for each speaker.

Connect the positive terminal of the right speaker connection on the amplifier (coloured red and labelled +R) to the positive terminal of your right speaker. Similarly, connect the negative terminal of the amplifier (coloured black and labelled with R–) to the negative terminal of your speaker. Repeat the process for the left speaker, using the amplifier terminals labelled +L and L–.

If your speakers support bi-wiring, then there is a strip of conductive metal on the speakers connecting the low-frequency terminals to those for the higher-frequencies; this must not be removed in a single-wired system.

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An A38 or P38 connected to speakers using single wiring

English

Bi-wiring

Bi-wiring is performed in the same way as single wiring except that, for each speaker, a pair of cables are used to connect the amplifier to each speaker.

Follow the instructions given for single wiring; then perform the same actions, this time connecting the upper set of speaker terminals on your amplifier to the terminals labelled HF or ‘High Frequency’ for each speaker. Please refer to the illustration.

Speakers that support bi-wiring have a strip of metal on the speakers connecting the low- frequency terminals to those for the higher-frequencies; this must be removed in a bi-wired system.

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An A38 or P38 connected to speakers using bi‑wiring

Bi-amping

Bi-amping requires the use of two amplifiers per channel. Normally, your A38 is used to drive the high-frequency (treble) speakers, while a power-amplifier (such as a P38) is used for the lower (bass) frequencies.

Connect your A38 to the speakers as described for single wiring, with the exception that the A38 should be connected to the speaker terminals labelled HF or ‘High Frequency’. Then connect the power amplifier (P38, for example) to the LF or ‘Low Frequency’ terminals, as in the diagram. A pair of audio interconnect cables are also required to connect the pre-amp outputs of the A38 to the power amp inputs of the P38.

Note that the strip of metal on the speakers connecting the lower terminals to the upper terminals must be removed. Failure to do so will result in damage to both amplifiers, which will not normally be covered under warranty.

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An A38 and P38 connected to speakers using bi‑amping

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A38, P38 specifications

The Arcam A38 and P38 are high-performance audio products designed for discerning listeners seeking exceptional sound quality and user-friendly features. These models represent a commitment to delivering a rich and immersive listening experience, suitable for both music enthusiasts and audiophiles alike.

The Arcam A38 is an integrated amplifier that combines high power with an elegant aesthetic. Its design reflects a blend of modern engineering and classic audio principles. The A38 boasts a robust Class G amplification technology, which allows it to deliver high-quality sound with exceptional efficiency. This amplifier produces up to 80 watts per channel into 8 ohms, providing ample power to drive a wide range of speakers. The Class G system operates in a standard Class A mode under normal conditions, switching to Class AB when more power is demanded, thus delivering a dynamic and refined audio performance.

One of the standout features of the A38 is its advanced digital signal processing capabilities. It includes a high-quality digital-to-analog converter (DAC), ensuring that digital audio sources are rendered with exceptional clarity and accuracy. The A38 supports multiple input options including analogue, digital optical, and coaxial inputs, offering versatility for connecting various sources such as CD players, streaming devices, and televisions.

Complementing the A38, the Arcam P38 is a power amplifier specifically designed to enhance the power and performance of any audio system. It is engineered for compatibility with the A38, making them an ideal pair for a high-fidelity set-up. The P38 also uses Class G technology and delivers up to 150 watts per channel into 8 ohms. Its robust build and superior component quality contribute to an impressive dynamic range and low distortion, which are essential for an impactful listening experience.

Both the A38 and P38 feature a sophisticated layout that minimizes electrical interference, ensuring clean signal paths and optimal performance. Additionally, they are designed with user convenience in mind, featuring easy-to-use front panel controls and remote operation capabilities.

In summary, the Arcam A38 and P38 are remarkable audio components that emphasize innovation, power, and quality. Together, they create a synergistic audio experience that fulfills the demands of serious music lovers, providing a pathway to experiencing sound in its truest form. With advanced technologies and a commitment to fidelity, these models stand out in the competitive landscape of high-end audio equipment.