The NAP 155 XS is the perfect companion to the NAC 152 XS preamplifier in an XS system. It features a very large mains transformer – both physically and in terms of its power rating – and at the heart of its power supply uses the same reservoir capacitors as the award-winning SUPERNAIT integrated amplifier. The NAP 155 XS employs similar construction techniques to the NAIT XS integrated amplifier with a castellated heatsink and reduced earth reference routing to deliver enhanced performance and more music. The NAP 155 XS is a power amplifier straight out of the classic Naim mould: fast, detailed, dynamic and single-mindedly musical.

Specifications
Audio outputs	Speakers
Power output	60W per channel into 8Ω, 90W per channel into 4Ω
Voltage gain	+ 29 dB
Minimum Load impedanc	2Ω
Frequency response	4Hz - 75kHz
THD	0.013%
Signal to Noise Ratio	100dB
Phase Response	Absolute phase correct
Power	Supply Voltage: 100-120V, 220-240V, 50 to 60Hz Power Consumption: Max 330VA Quiescent Power Consumption: 16VA
Physical	Dimensions (mm): 432 x 301 x 70 (W x D x H) Weight: 7.9kg Shipping Weight: 10.5kg Shipping Dimensions (mm): 580 x 500 x 200 (W x D x H)
Colour	Black
Finish	Anodised fascia, painted cover