The Firestone MASS is a small pre-amplifier with remote control capable of selecting source inputs, muting function, and controlling volume.

Technical Specifications

Circuit Structure : Infrared ray control with pre-Amplifier
Power Structure : Switching power supply, Soft-Star circuit
Control Mode : Stand by / Power on / Volume up / Volume down / Input Select / Mute
Gain Range : -95.5dB to 31.5dB
Circuit Protect : Output short / over current protect
Volume Control Chip : TI – PGA2310

Audio Performance (1kHz sine wave, 2Vrms output, 24-bit / 48kHz)

Frequency response (40Hz to 15kHz) : 40Hz +0.01dB, 15kHz -0.03dB
Noise level (1kHz, A-Weighted) : -107.5dB
Dynamic range (1kHz, A-Weighted) : 107.5dB
THD% : 0.0018%
Stereo crosstalk : -100.0dB

Connectivity

Line Input : 2 of RCA jack
Line Output : 1 of RCA jack

System Requirements

Any equipment with Line-out function

Package Contents

Mass
DC24V 0.5A power adapter
Remote controller
User manual
Warranty card
Wrench