PreAmp Silver Location of ecc83 tube on Marshall 8080 valvestate 80v.?
Is it behind the silver metal box cover on the rear. This amp has a tube in the preamp for the overdrive. You can't see through into the back of the electronics to tell if the tube is lighting up and I want to check it out.
Best bet replace it this is your answer it is also known in the good Ole USofA as a 12AX7 http://search.store.yahoo.net/cgi-bin/nsearch?catalog=yhst-8476489043850&.autodone=http://edit.store.yahoo.com/RT/NEWEDIT.yhst-8476489043850/6a31ae1ded2d/nsearch.html&query=ecc83
The Avalon V5 follows the tradition of the U5 DI box, which has been in continuous production since 1995 and is used by leading music professionals in both studio and live sound reinforcement applications.The Avalon V5 introduces a new generation of this tried and true idea, loaded with professional features including a low noise, high-gain, Pure Class A, microphone preamplifier, and a 10 mega ohm instrument DI input with zero impedance loading and a +36dB maximum input capability for active preamp-line sources like acoustic and electric guitars, bass, keyboards and synthesizers.A transformer-isolated reamping output offers multiple input-output configurations with all inputs available, including polarity reverse. Sealed silver relays provide transparent signal path routing while custom, ultra-high performance rotary switches deliver smooth gain control in accurate 2dB steps.A unique passive tone selector allows ten contours (six from the U5 tone bank) including two passive high pass filters and two vocal-instrument enhanced passive air-lift low frequency curves.Additional features include a passive low pass hiss & buzz filter, a wide range, professional analog VU meter with expanded scale -30dB to +18dB with twin peak LEDs for fast signal capture.The Avalon V5 has a truly unique feature set utilizing 100% discrete, DC coupled, Pure Class A amplifiers for Deep and Controlled Bass together with a Musical Midrange for enhanced Vocal and Instrument resolution. With reamping options, the passive TONESHAPING network and multiple output choices the Avalon V5 will continues Avalons passion and commitment to sonic excellence.Pure Class A, 100% discrete designSmooth musical detail and sonic excellenceVariable gain preamp to +30dB.Dual microphone and line outputsHi-Z 3,000,000 ohm input impedanceVery low noise -100dBHigh headroom +30dBSix tone bank selections.DC coupled Class A output for superior bassHigh cut switch eliminates noiseLED active signal indicatorHeadphone monitor output jackLow distortion less than 0.5% THD and IMDHigh level 400 watt speaker inputActive to thru selector - ground isolation switch100% discrete power supplies for audio pathInternal toroidal power supply for low noiseLong lasting, stainless steel hardware
In recording, there are certain things that you can only know through years of experience, such as which preamp works best on vocals, which one rules on guitar, or what preamp to use if you have a dark-sounding instrument or mic that needs some brightening. With A Designs Audio's EM series preamps you can let the 60 years of combined experience and super tone-sensitive ears of Jon Erickson and Pete Montessi save you years trying eek secrets out of pro engineers and lurking on forums. Each preamp in the series is designed to handle specific recording chores with the remarkable sound quality that A Designs Audio is now famous for. (Read the buzz on the forums, you'll find nothing but raves.) Best of all, you get high-quality audio in a space-saving and affordable package. Custom transformers, the key to a big punchy sound The A-Designs Audio Erickson Montessi - Gold microphone preamp module is designed to complement the other A-Designs preamp modules and further expand the sonic palette with its own unique frequencies. In solid-state preamp design, the key to a big punchy sound rests in the input and output transformers. (That's where you get what is known as the "big iron" sound of the '70s). To ensure top-quality sound, A Designs has their transformers custom-built by Tom Reichenbach of Cine-Mag, whose lineage extends back the days when his father Ed built transformers for Altec-Lansing in the '40s. Not only are the transformer hand-made, they're also "ear-made" by Jon (who spent years rebuilding vintage gear for LA studios), and Peter (longtime LA musician and preamp guru), who won't okay a transformer design until they get exactly the sound they're looking for. With a rack full of EM series preamps, you can put those ears and 60 years of combined experience to work for you and bring your recordings to new sonic heights. Another color for the EM palette The EM-Gold combines the output transformer of the A-Designs EM-Silver, which will translate into a darker sound, and the input transformer of the A-Designs EM-Red, which gives you "up-front" mids. As a result, the EM-Gold brings more midrange frequencies to the lower end of the sonic spectrum, which makes it an excellent choice for drum miking (toms in particular). It also excels on various guitars (especially if you want that midrange "chunk" that moves the speakers), vocals, MP3/drum machines, and bass and if you've ever heard the A Designs REDDI, you know that nobody knows their way around bass tone better than A Designs Audio. Solid build quality and functionality The A-Designs EM-Gold features a 1/4-inch Hi-Z direct inject input for instruments, switches for 48-volt phantom power (with LED indicator), -20dB pad and phase reversal, 62dB of gain, a large aluminum cast knob for gain, custom-wound input and output transformers, two thumb screws for easy installation, and an extremely solid build quality. Most of all, the EM-Gold is another stellar example of the A Designs Audio miss
DBX 386 Tube Mic Preamp Dual Vacuum Tube Preamp w/ Digital Output The Silver Series 386 dual channel tube mic preamp puts the best of both worlds into one affordable package by combining the warmth of the irreplaceable vacuum tube with the proprietary dbx® Type IV™ conversion system. The 386 boasts many of the same features as other products in the Silver Series, such as +48V phantom power, a phase invert switch, and low cut filtering; but also includes digital outputs in both AES/EBU, and S/PDIF formats. The high impedance, 1/4" instrument input located on the front panel, as well as the mic/line switch, and 20 dB pad show our dedication to providing convenience in the studio. The 12 segment LED meters provide a visual indication of analog or digital levels at a glance. The rear panel includes both mic and line inputs and outputs, word clock sync input and output, and digital outputs. Add selectable sampling rates of 44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz; selectable dithering and noise shaping; and separate analog and digital output controls to this already impressive list of features, and we think you'll agree that the 386 lives up to the innovative dbx® standards. Features: Two channel tube microphone preamplifier Selectable 96kHz, 88.2kHz, 48kHz, or 44.1kHz sampling rate 24, 20, and 16-bit wordlengths Selectable dither and noise shaping AES/EBU and S/PDIF digital outputs Word clock sync input and output Separate analog and digital output control Type IV™ conversion system 60dB of gain and +/- 15dB of output gain Selectable mic/line switch 48 volt phantom power 20dB pad 75Hz low cut filter Phase reverse Segment LED analog/digital
The reference-quality Benchmark DAC1 HDR preamplifier brings together all the best features and performance of the award-winning DAC1 family with the convenience of intelligent remote control. The all-in-one stereo DAC1 HDR combines some of Benchmark's finest engineering accomplishments into a single preamp: the DAC1 digital-to-analog audio converter with UltraLock clock system, AdvancedUSB computer audio playback (USB DAC) interface, and the legendary HPA2 headphone amplifier. The DAC1 HDR preamp's unique remote control is built around Benchmark's new HDR-VC (High Dynamic Range Volume Control). Benchmark's pro audio product designs have achieved unprecedented sonic purity due to an uncompromising engineering philosophy: eliminate digital distortion artifacts, establish a pristine analog path, and maintain sonic integrity regardless of external factors. The DAC1 HDR continues this tradition of excellence. The DAC1 HDR preamp's remote control solution is an intelligent implementation of dimming and muting. The Dim (quiet) and Soft-Mute settings of the remote control can easily be adjusted independent of the normal volume setting. The DAC1 HDR remembers and recalls your specified 'Dim' setting. This feature is ideal for HDTV users, as it allows you to set your preferred 'Dim' level for commercials, etc. The 'Soft-Mute' function fades down the volume to the 'Dim' level before muting and smoothly raises the volume to the normal level after un-muting. With a generous offering of inputs and outputs, the DAC1 HDR serves as the heart of expansive media and entertainment systems, optimizing the signal path from the various sources to the amplifier. The DAC1 HDR will enhance the audio performance of your digital television, digital cable box, DVD/CD player, computer, music/media server, satellite radio, and any other device with a digital audio output. Also, the HDR-VC will control the pristine path for an analog source, such as a phono stage, FM tuner, iPod, VCR, tape deck, etc. All digital inputs on the DAC1 HDR (including the USB) feature Benchmark's jitter-immune UltraLock clock system. The USB interface operates with Benchmark's AdvancedUSB native 24-bit, 96-kHz USB technology. The DAC1 HDR features a high-current output stage designed to drive even the most difficult loads. Other features include selectable headphone gain ranges and an auto-mute function for muting the main outputs when headphones are being used. HDR-VC High Dynamic Range Volume Control The DAC1 HDR features Benchmark's HDR-VC (High Dynamic Range Volume Control). The HDR-VC is achieved with a custom-built motorized Alps potentiometer. The DAC1 HDR's motor-driven volume control maintains the dynamic range of the converter and audio output. In contrast, digital volume controls reduce dynamic range, and analog volume IC's introduce distortion and noise. The acclaimed DAC1 D-to-A conversion system Recording studios, mastering engineers and audiophiles have grown to rely on Benchmark for
PreAmp Silver
June 22nd, 2008
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