RIVERA Rock Crusher rockcrusher Load Box https://youtu.be/bPsQR-T088c?si=5BC4Ywa1VtjvKqPU Specifications ■ Power Attenuator & Load Box ■ Maximum Allowable Input Power: 120W RMS Amplifier ■ Input Impedance: 8 or 16 Ohm switchable ■ Speaker Output Impedance: 8 or 16 Ohm switchable ■ Dimensions, Weight: W381mm x D241.3mm x H82.5mm, 3.63 Kg ■ FUNCTION ATTENUATE: When a speaker is connected, it functions as an attenuator, and when no speaker is connected, it functions as a load box. In BYPASS mode, the input signal is output without passing through the unit's circuitry. ■ INPUT Z: Input impedance switching. Selects the output impedance of the amplifier and the impedance of the speaker box. ■ EQUALIZATION: Can compensate for high and low frequencies lost during low output (attenuation). The EDGE switch adds high frequencies, and the WARM switch adds low frequencies. ■ ATTENUATION: Adjusts the attenuation level. The dB numbers listed are approximate and may differ from actual measurements. You can select the level from six positions. When set to the STUDIO position on the far right, the output level can be adjusted with the adjacent STUDIO LEVEL control. Also, high-input silver-plated switches are used. ■ STUDIO LEVEL: When the ATTENUATION control is set to STUDIO, it functions like a normal volume control. At the minimum value, the volume can be reduced to the point where you can play the amplifier at home. ■ LINE LEVEL: Adjusts the balanced or unbalanced line output level.