Covalent-Audio Nucleus Owner's Manual

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Nucleus

Headphone Amplifier

covalent audio

Owner’s Manual

Nucleus

Headphone Amplifier / Preamp

Please read this manual thoroughly before using this product

Welcome

Congratulations and thank you on selecting one of the finest headphone amplifiers available.
We at Covalent-Audio have taken great care and pride in developing this high-end amplifier to
ensure high performance and great value. Please read this manual thoroughly before using
this product.

What’s in the box:

The following items are included in the shipping carton–

1 - Nucleus headphone amplifier / preamp.

1 - AC power adapter.

1 - 6’ stereo 3.5mm plug to stereo RCA cable.

1 - 1/4” to 1/8” headphone plug adapter.

1 - Owner’s manual.

Nucleus Specifications

Output Power 1.5Watts(rms) into 32-ohms (per channel)

Output Impedance 2.2-ohms for Headphones and 75-ohms for Pre-Amp out

Output Voltage 21Vp-p before clipping

Frequency Response 2Hz to 200KHz

THD <0.01%

Inputs 2 Stereo analog on RCA Jacks -selectable via front-panel switch

Input Impedance 50K-ohms

Outputs 1/4”(6.3mm) Stereo Headphone Jack and Pre-amp out on RCA Jacks

Gain 14.6dB (Hi) and 6dB (Lo) selectable via rear-panel switch

Power Supply 18VAC at 1000mA provided by included “wall-type” adapter

Dimensions 9”W x 2.5”H x 7.25”D

Weight 3.3 Lbs excluding AC power adapter, accessories and shipping carton

Your Hearing Is Valuable!

Your hearing is very important and being that the Nucleus headphone amplifier is capable of
high-output into your headphones, please listen responsibly. Below is a decibel chart relating
to the various sound levels and how long one’s ears can be exposed before hearing damage
may occur.

Welcome