Audio Amplifiers
This topic is for test equipment that is designed for the testing of audio amplifiers.
See Also: Amplifiers, RF Amplifiers, Preamplifiers, Current Amplifiers, Voltage Amplifiers, Transconductance Amplifiers, Op Amps, Klystron, Instrumentation Amplifiers, Distribution Amplifiers
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Product
Low Voltage DC / Battery Powered HV Amplifiers
WMA-02 And WMA-02LF
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The Falco Systems WMA-02 is a high voltage amplifier that runs from an 24 - 30V DC power supply and can be battery powered if required, e.g. for use in a Faraday cage. Its internal high voltage generator is inductor-free and hence does not spread magnetic interference in sensitive experimental setups. The output noise is impressively low at 4mVrms. For extremely low noise applications where bandwidth is not an issue, a dedicated WMA-02LF version is available that contains an output low pass filter capacitor which reduces the bandwidth to 50Hz, but makes the noise drop to below 0.2mVrms. This bandwidth-limited amplifier is ideal for MEMS or piezo positioning with manual voltage adjustment.
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Product
PXI Signal Amplifier
3180
Amplifier
Model 3180 was designed as a general purpose, wide band and high voltage amplifier, however, with specific applications in mind. It offers selectable gain of up to x50, with amplitudes of -90V to +90V and an output current of 150mA.
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Product
Current Amplifiers
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In order to achieve an extremely low noise performance very high gains were chosen, while nevertheless minimizing the associated bandwidth reduction.Thus, as a result of our sophisticated development efforts we can offer a professional "High-End" Current Amplifier line. The noise performance of our products surpasses by far that of conventionally designed OpAmp current-to-voltage converters at the corresponding bandwidth.
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Product
Crossed-Field Amplifiers
CFAs
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Communications & Power Industries
CPI BMD’s crossed-field amplifiers (CFAs) are broadband, phase-stable microwave amplifiers used in coherent radar chains to efficiently generate very high peak output powers from relatively low input voltages which can be either applied to the cathode or an electrode similar to a TWTs cathode or grid pulsing, and in relatively small, lightweight packages. These characteristics make CFAs particularly well-suited for applications in which the transmitter must be either airborne, transportable, mobile or portable.
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Product
Amplified Photodetectors
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Hinds Instruments' photodetector modules are specifically designed for use with high frequency optical signals including those generated in Photoelastic Modulator (PEM) applications.
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Product
Mic / Audio Line Tester
Qbox
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Whirlwind Music Distributors, Inc.
The Qbox is the all-in-one audio line tester ideal for applications such as live sound, maintenance, installation work - anywhere audio runs down a cable. The Qbox can quick-check dynamic microphones and cables without firing up the entire system. It provides a handy mic or line-level tone for activating a signal path or identifying a specific cable in a pile of cable ends.
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Product
Full W-Band Power Amplifier
SBP-7531142515-1010-E1
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For communication and radar applications, SAGE Millimeter has released a new full W-Band power amplifier. Model SBP-7531142515-1010-E1 is a power amplifier with a typical small signal gain of 25 dB and a nominal output power of +15 dBm across the frequency range of 75 to 110 GHz. The DC power requirement for the amplifier is +15 VDC/190 mA. The mechanical configuration offers an in-line structure with WR-10 waveguides and UG-387/U-M flanges. Other port configurations, such as with 1 mm connectors or a right angle structure with WR-10 waveguides, are also available under different model numbers. Features include: Full Band, High Gain, High Output Power.
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Product
Variable Gain Amplifiers
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50 dB Gain, 14 dBm P1dB, 100 MHz to 18 GHz, Rack Mount, Variable Gain Amplifier, 6.5 dB NF, SMA
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Product
HF Amplifier
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bsw TestSystems & Consulting AG
Whether a HF amplifier which is mounted in a 19" rack is viewed as an instrument, a system or a component largely depends on the point of view of the application developer. We list this product family here; however we would like to point out that our 19" amplifiers for rack-mount and benchtop applications, as well as modules without power supply, are listed in the "Components" section.
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Product
Third Party RF Amplifiers
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We work closely with major manufacturers to supply a range of oscilloscopes, function generators and power amplifiers. We are the UK agent for the leading manufacturer of RF amplifiers Electronics and Innovation.
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Product
Macintosh Audio Spectrum Analyzer
iSpectrum
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iSpectrum is an easy to use audio spectrum analyzer that allows you to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display.
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Product
FFT Audio Spectrum Analyzer Plug-in
SPAN Plus
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Fast Fourier transform spectrum analyzer. Stereo, mid-side, surround spectrum analyzer. Stereo correlation meter. Multi-track spectrum comparison. PNG spectrum snapshot saving. K level meter. This plug-in is compatible with Windows (32 and 64-bit Windows XP, Vista, 7 and later versions) and Mac OS X (10.5 and later versions, 32-and 64-bit, Intel processor-based) computers.
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Product
Ground-Based Satcom Amplifiers, Modems & More
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Modems for Small-to-Medium Sized Networks Where Security is of Utmost Importance.
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Product
High Voltage Op Amplifiers ≥12V
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High supply voltage op amps are used in systems that demand the widest dynamic range with the best signal-to-noise ratio. Engineers turn to Analog Devices for high voltage amplifiers that deliver industry-leading performance. Increasingly, new high voltage amplifiers also offer features to improve system performance, cost, and robustness while easing the complexity of system design. New features include integrated input overvoltage protection (OVP), on-chip electromagnetic interference (EMI) filtering, higher electrostatic discharge (ESD) immunity, and greater resistance to latch-up in both powered and unpowered operations.
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Product
Signal Generator, Audio, Handheld, 1 Channel, 150kHz, AM, US Plug
72-505
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*Hand held audio generator*20Hz to 150KHz in 46 steps*±0.5dB sine wave output 1.2V RMS (no load) and square wave output SV p-p max (no load)*Dimensions: 150mm × 83mm × 25mm*Low battery indicator
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Product
VME PWM Servo Motor Driver / Amplifier Board
64PW2
Servo Motor Drive
NAI’s 64PW2 is a 6U VME Servo Motor Driver/Amplifier Board featuring a dual, four-quadrant, bi-directional, PWM servo amplifier. Specifically targeted for DC servo motor applications, this board has an amplified power stage that uses a Pulse Width Modulation (PWM) control signal to provide motor control for both brush and brushless motors. Each motor drive accepts a 65 VDC power input and provides a 5 Amp maximum continuous current output (8.5 Amp peak).
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Product
DVI Video Matrix Switch with Audio Option up to 32x32
SM-nXm-DVI-LCD
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The VEEMUX® DVI Video Matrix Switch routes video from up to 32 single link digital DVI video sources (computers, DVD players, satellite receivers, etc.) to up to 32 displays (LCD monitors, Plasma screens, DLP HDTVs, projectors, etc.) and stereo audio speakers (with audio option).
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Product
Reference plus Comparator or Amplifier
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Analog Devices reference plus comparator or amplifier products combine the excellent initial accuracy and low overtemperature drift performance of single function voltage references with comparators, buffer amplifiers, and current sense amplifiers. These products offer compact solutions for a broad range of applications such as battery monitoring, threshold detectors, window comparators, auto power-off circuits, and low dropout (LDO) regulators.
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Product
Composite 1×24 Video Distribution Amplifier
VDA124RM-12
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Video Distribution Amplifiers (sometimes called a video splitter – not to be confused with a video split screen controller such as our PXD510E split screen controller) are typically used for connecting a camera or other video source to several monitors that do not have “looping” inputs. In this situation, each monitor has a permanent 75 ohm termination. With two non-looping monitors connected together, the line would be double loaded and result in a dim picture on each monitor. Using a Video Distribution Amplifier will solve this problem by driving each monitor individually at 100%.
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Product
Amplifiers
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Fully automatic, legal limit plus headroom amplifierAlpha’s low-drive, tube amplifier design delivers the cleanest possible signalOperates on all Amateur Radio Bands 160M thru 10MSingle, easy to find, inexpensive 3CX1500A7 8877 type tubeInternal, automatic 4 port antenna switch capable of combining any 2 antenna portsAlpha’s Legendary service and support4 year limited warranty on hardware, 1 year on tube1500W, 100% duty cycle, no time limitation, key down foreverRugged construction built to last
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Product
Low Noise Op Amplifiers (≤ 10nV/√Hz)
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Analog Devices’ portfolio of low noise (≤ 10nV/√Hz) op amps includes many amps with the lowest noise performance in the industry. These high speed, low distortion (1 nV or less) op amps enable better signal fidelity in the most demanding conditions, allowing system designers to achieve the lowest total system noise performance in applications with high source impedances. We feature a considerable variety of these amps with wide supply ranges and low power.
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Product
SparkFun I2S Audio Breakout
MAX98357A
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The SparkFun I2S Audio Breakout board uses the MAX98357A digital to analog converter (DAC), which converts I2S (not be confused with I2C) audio to an analog signal to drive speakers. The I2S Audio Breakout converts the digital audio signals using the I2S standard to an analog signal and amplifies the signal using a class D amplifier which can deliver up to 3.2W of power into a 4Ω load. The board can be configured to output only the left channel audio, right channel, or both.
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Product
IRIG Amplitude Modulated Time Code Distribution Amplifier
1205A / 1205A-MC
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Precise Time and Frequency, Inc.
The ptf 1205A is a 12-channel IRIG amplitude modulated time code distribution amplifier housed in a 1U high, 19″ rack package. The ptf 1205A uses an RF design combining the latest technology in low noise components to minimize input/output delays which are of the order of nano seconds.The unit uses two stages of input signal buffering to distribute the input signal to 12 separate outputs, and insure maximum isolation between individual output signals.
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Product
20GHz 30dBm RF Signal Amplifier
A10200
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Model A10200 is an ultra-small footprint, ultra wideband, high power amplifier designed for high frequency, high power, signal amplification. With an ultra high bandwidth of almost 20GHz and up to +28dBm power into 50 ohms, the A10200 is the ideal complimentary amplifier to any signal source that needs an extended power boost for demanding applications.
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Product
Power Amplifiers
Immunity
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The RF power amplifier range from Laplace is specifically designed for EMC Immunity testing according to IEC61000-4-3 and IEC61000-4-6. These are compact units with characteristics matched to the requirements of IEC standards. These RF amplifiers utilize fully isolated linear MOSFET or advanced GaAs FET devices, which provide high gain, wide dynamic range and excellent third order intercepts. High efficiency and reliable operation are achieved by employing unique RF combining circuits, RF microstrip networks, sophisticated thermal design, custom machined housing and heavy duty components. The high power RF amplifiers undergo extensive burn-in prior to final test and inspection.
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Product
Basic Quad K-Type Analog Thermocouple Amplifier
SEN-30103-K1
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Analog thermocouple amplifier board based on the AD849x from Analog Devices (successor of the AD597). This quad-channel thermocouple board converts the very low voltage signal from a thermocouple to a highly-linear, 0.005V/C output with either 0V or 1.245V offset (both configurations stocked) while removing unwanted noise from the signal. Many supply and output configurations are available with this board, though the PCB was designed with Arduino in mind. Specifically, the output header will plug directly into a standard Arduino Uno or Mega, with a pin-for-pin match for power supply, ground and analog outputs. With a 5V Arduino, temperatures from 0C to 1,000C are possible with the 0V offset board and -249C to 750C with the 1.245V offset board. If using a 3.3V microcontroller (Due, etc), the board must be supplied with no more than 3.3V to avoid damaging the microcontroller. Temperature measurement range is dependent on the supply voltage. It is possible to supply the board with higher voltages to allow temperature measurement over the entire operating range of the K-Type and J-Type thermocouples, allowing use with more capable data acquisition equipment.
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Product
DSP And Power Amplifier
DMPA12
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The DMPA12 is a powerful digital audio processor and multi-channel power amplifier combined into a single rack space component designed to work with DM Series processors. The design represents a milestone in DSP technology in its basic architecture and in its processing speed and efficiency. The primary applications are sound reinforcement and teleconferencing in boardrooms, courtrooms, worship centers, distance learning systems, hotels and other applications with multiple microphones and loudspeakers. The design is ideally suited to mix-minus sound reinforcement systems.
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Product
High Power RF Amplifiers
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Corry Micronics' line of high power RF amplifiers feature up to 40% efficiency. an extended temperature range of -30 degC to 55 degC for MIL-STD applications, and status monitoring signals that provide diagnostic information.
