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Voltage vs. time of sine waves at reference and line levels, with V RMS, V PK, and V PP marked for the +4dBu line level. A line level describes a line's nominal signal level as a ratio, expressed in decibels, against a standard reference voltage. The nominal level and the reference voltage against which it is expressed depend on the line level ...
The sound company Tycobrahe, known for supporting large rock festivals such as California Jam, offered an active direct box for sale in 1977 capable of +9 dBm line level output with a built-in attenuator to compensate for various input levels. [4] [5]
This article lists manufacturers of bass amplifiers, loudspeakers, and other amplification-related items such as preamplifiers. The amplifiers and loudspeakers used to amplify bass instruments (e.g., the bass guitar, double bass and similar instruments) are distinct from other types of amplification systems due to the particular challenges associated with low-frequency sound reproduction.
The line was launched with three products: the Gain Cell DAC/preamp. the S300 stereo amp, and the M700 mono amps. The Gain Cell DAC is a moderately-priced combination DAC and preamp that also incorporates a high-performance headphone amp; the S300 produces 140 watts per channel into 8Ω; 300 watts per channel into 4Ω; and is stable into a 2Ω ...
In an audio system, they are typically used to amplify signals from analog sensors to line level. The second amplifier is typically a power amplifier (power amp). The preamplifier provides voltage gain (e.g., from 10 mV to 1 V) but no significant current gain. The power amplifier provides the higher current necessary to drive loudspeakers.
Image source: The Motley Fool. XPO (NYSE: XPO) Q4 2024 Earnings Call Feb 06, 2025, 8:30 a.m. ET. Contents: Prepared Remarks. Questions and Answers. Call Participants ...