Api Preamp Schematic Homemade API style Mic Pre – Gearslutz

Dec 07, 2011 · Home > The Forums > Geekslutz forum Homemade API style Mic Pre. Login / Join. Join with Facebook I do have schematics for the API as well as the John Hardy pres, but I would love to have a look at how you strung it together (component values, etc) as well as the output level control. Welcome to the Gearslutz Pro Audio Community

The API 325/312 Mic Preamps from SVT Audio have been built from original vintage API 325 line input cards. Great attention and care has been taken to assure the original API 312 mic pre circuit was preserved for it’s purity and sonic quality.

The traditional fully discrete API circuit design is here, along with the famous API 2520 Op-amp. The API 512c also offers high headroom, with 65dB of gain on the mic preamp and 50dB on …

The circuit utilizes two of the secondary windings in series in standard API fashion. Although the 2503 is the most recognized output transformer for an API mic preamp, it should be noted that the console input modules made use of the smaller AP2623-1 for this duty, not the 2503.

Projects > CAPI VP312 and VP312DI Preamps The VP312 is an almost exact replica of the vintage API 312 circuit designed for 500 series or 51x Alliance racks. Input and output transformers are Ed Anderson’s replicas of the vintage API iron.

It’s the 50th birthday for those icons of signal processing, API. To celebrate, they’re releasing goldface limited editions of the 312 preamp and 550A EQ. The 312 pre was at the core of legendary API consoles of the 1970s. The new edition features an exact reproduction of the Saul Walker’s original printed circuit …

API’s 512 preamp design is a classic — and now there are even more reasons to love it! Although the original 512 preamp was soon succeeded by the 512b and, later, by the 512c, its design topology — a transformer-balanced input feeding API’s own 312 microphone preamp card with its proprietary

7 of the Best Pre Amps for Recording Engineers & Producers. Joe Albano on Aug 07, 2016 in An alternative to the classic British console preamps, like the Neve 1073, the API 512 comes out of American company API’s classic consoles. the 512c, is a fully discrete solid-state design, based around API’s 2520 op-amp circuit and

We provide DIY (Do-It-Yourself) Mic Preamp Kits, 500-Series kits, Power Supply Kits, and API VPR Certified audio modules for the 500 series rack. Our customers range from professional recording studios based in the United States, Europe and Asia to small project studios run by small business owners and music recording enthusiasts.

Microphone preamps are perhaps the most abundant DIY project for the recording studio, with numerous options available for an API 312-type preamp alone. Preamp projects range in difficulty and cost from simple, low-cost, low-voltage IC-based amps to complex, tube-based circuits.

In a way I’m glad because it’s not a defective preamplifier or A/D chip or something complicated like that. There may be slight variations in schematics, or board layout/parts placement. PIC microcontroller or similar) within the same project. Nowadays, incorporating microprocessors in DIY projects is common… thanks to the

Ribbon Mic Preamps (2) SumBus ACA ~ Summing Mixer (23) Switches (20) Tools (7) Transformers (16) Customers and fans should not refer to Classic Audio Products, Inc. as « Classic API. » Classic Audio Products, Inc. has no affiliation with Automated Processes Incorporated. Bestsellers: 01.

Find great deals on eBay for api preamps and behringer powerplay p16-m 16-channel digital personal mixer. Shop with confidence. New listing API The Channel Strip 512c Mic Preamp 550A Eq 527 compressor 325 line amp MINT. C $3,019.28; Buy It Now API 312 Mic Preamp circuit board PSU312 v1 Fabio Bauman. C $30.86. Was: Previous Price C $33

The Preamps. API 3124+ The 3124+ incorporates four of API’s classic preamps in a convenient 1U rack, with instrument inputs, pads, phantom power and metering on each channel. The API design is widely described as ‘punchy’, with a strong mid-range presence, and is very popular among those recording rock music, especially on drums and electric

Parts Express stocks and ships free – Microphone Preamps from the category of Preamps & Channel Strips in the Pro Audio Department. 351

The API 512c Mic/Line Preamplifier is a low noise input module designed for a variety of different audio systems. The microphone amplifier is designed from API’s 512 amplifier, delivering the precise and punchy sound API consoles are renowned for.


Preamps 8 x API 312 Mic Preamps 2 x Neve 1290 Mic Preamp Gyraf Audio G9 Stereo Tube Mic. I used it with a host of preamps, most of which got 60 or 80 dB gain, which means The SSL 9000 series style preamp or the Graeme Cohen-like designs have a lot I need at least a schematic and layout to guide me, I’m not fluent enough.

Find great deals on eBay for preamp api and neve preamp. Shop with confidence. Skip to main content. eBay Logo: Shop by category. Shop by category. Enter your search keyword API 312 Mic Preamp circuit board PSU312 v1 Fabio Bauman. C $30.12. Was: Previous Price C $33.10. Buy It Now

1. Build an API or Jensen style mic preamp. The 2520 discrete opamp is at the heart of the « API Sound. » And these days, there are a cornucopia of projects for the API-style preamp builder, including: Access 312 and Bicycle 312 are PCBs for 312-type preamps


Api 2520 Op Amp Schematic I’m looking for a schematic for these two boards – I did buy a few of the GAR2520 (API 2520 opamp clone) boards and kits, assembled one, but in my own. Built with the suggested transformers and op-amp, the result is an amplifier The SC25 is an updated, « slightly improved » version of the API 2520 discrete op-amp.

6 results for « api preamp » Showing selected results. See all results for api preamp. API 512C. by API. $850.25 $ 850 25 Prime. FREE Shipping on eligible orders. Only 4 left in stock – order soon. 5 out of 5 stars 1. Product Description 512c Mic/Line Preamp makes use of all API products.

API The Channel Strip (Preamp Compressor EQ Rack-Mount) The Channel Strip is a complete input module with mic pre, dynamics processing, precision EQ and output level control. With extensive signal metering, multiple balanced insert points and an output mute switch, The Channel Strip contains the best features of a large console input channel in

API 321 mic preamp schematic. Circuit schematic You are just a step away to see this schematic. A new page will open automatically with the schematic. If this page does not appear within 5 second, please click here to open it manually. Your feedback is valuable

Feb 16, 2017 · i just got off the phone with a tech at API. since the manual is pretty vague i had a few questions for him so here’s some more info on it. it’s still running thru the amp circuit and the output transformer in it. As it is, having a great preamp and transformer DI might be worth the cost of admission, though I’ll need to do some

API 3124 MIC PREAMP QUAD OUTPUT ATTENUATOR DIY I’m a big fan of the API microphone preamps, they have transformer coupled inputs and outputs along with a wonderful op amp made from discrete components. the jacks were about $3 each. The CAPI custom pots were around $33 each with circuit boards, I ordered them directly from the CAPI site


The 990 discrete op-amp is the finest op-amp available for audio applications. If you want superior dimensions and pinouts conform to the API 2520 package, allowing direct replacement in most applications. package include a schematic of the mic preamp cir-

7 results for api preamp Save api preamp to get e-mail alerts and updates on your www.rclcivils.co.uk Feed. Unfollow api preamp to stop getting updates on your www.rclcivils.co.uk feed.

Photograph 01 – Stock Build of 12AX7 Line Level Preamplifier Kit (Image courtesy of Silicon Chip Online) The schematic of the preamplifier section is shown in Figure 01.

The API 512c is a mic / line / instrument preamp designed to provide a low noise, unusually good sounding front end for all types of audio systems. Sonically, it offers the distinct API sound at an extremely affordable price.

API 512c Preamplifier (500 Series Module) The API 512c is a mic / line / instrument preamp, world famous for its ability to provide a low noise (-129 EIN) and unusually good sounding front end for all types of audio applications.

API Audio Preamps . Classic API circuit design. API 2520 OP amplifier. Switchable 3:1 Output transformer for each channel. €3,299. £2,847.94. Available immediately. Available immediately. This item is in stock and can be dispatched immediately. Standard Delivery Times. Add to Basket.

API 512c Microphone Preamp Get That Legendary Console Sound! With the API 512c, you’ve got the chance to own API’s legendary front-end sound — at an unbelievably incredible value.

Find great deals on eBay for api preamp and warm audio. Shop with confidence. API 3124+ 4CH Mic Microphone Pre Preamp PREAMPLIFIER – USED – PERFECT CIRCUIT. Pre-owned. £1,919.80 + £138.27 postage; 14 Watching. See more like this MW Analog Custom-Built CAPI VP26 API 500 Series Classic Mic Preamp Module & 2520. Only 1 left! 8 Sold.

Mic Preamp The 500 series, 65 dB gain, Microphone input on the front and back, Line / instrument input jack, 20 dB pad-switch, 48V phantom and phase switchable, LED-VU meter, Lownoise preamp (-129dB), Circuit …


The NV73 is a Neve 1290 clone adapted for the API 500-series. The 1290 is the microphone preamp module from the famous Neve 1073. The preamp. Our circuit follows the exact specifications of the 670 schematic.


Neve 1073 Clone Schematic Nov 2, 2014. Having just the schematic only tells part of the story. Would any of the 500 series 1073 pre clones do the overdrive job correctly (heritage, ams..etc.). The NV73 is a Neve 1290 clone adapted for the API 500-series. The 1290 is the microphone preamp module from the famous Neve 1073. The preamp. File Aml

Harnessing UA’s groundbreaking Unison technology, the API Vision Channel Strip plug-in gives you all of the API Vision’s important impedance, gain stage “sweet spots,” and circuit behaviors that have made its 212L preamp one of the most detailed and punchy preamps ever devised.

So, for your dynamic mics, a preamp with high gain and low noise is essential. On top of that, keep an eye on the tonal character of the preamp: it can really go a long way to making the sound from the mic warmer or clearer.

Mic Preamp, Power Supply and Electronic Kits Inspired by API mic preamp’s use of discrete opamp. A cool circuit made by this famous Canadian manufacturer.

The same preamp/DI circuit of the 312 and 3124+ preamps give you a fast, electric sound with all of the punchy tone that makes engineers and producers reach for API gear on every session.

API 321 mic preamp schematic Audio Pre-Amplifier Audio PreAmplifier (Reconnsworld) – this is a very easy circuit to build, all parts can be found at the local electronics shop, no matter how worthless it (the local shop,) usually is..

The model 3124+ utilizes the same microphone preamp circuit that is used in all API consoles. It uses the RE-115 K mic input transformer and the same output transformer that is used in all API equalizers. All four mic inputs of the 3124+ are powered by an internal 48 volt phantom power supply, front panel switchable for each channel.


Homemade Tube Preamp Schematic Original circuit all tube amp build. About 10 watts, 2x 12AX7 preamp tubes, 1 EL84 output. API Preamp · Clean Preamp · Configurable Preamp · Jensen. 100uF Electrolytic Capacitor (Preferable 16v if the circuit is ran on 12v but 10v should I am asking this because I …

API 512v Mic / Line Preamp by API’s 10 position 500V vertical rack, or into an API console.The API 512v remains faithful to the circuit designs of API’s founder Saul Walker. Artfully combining those circuits with API’s proprietary transformers and the incomparable 2520 op-amp, the 512v is a highly musical and rich-sounding analog mic pre

The 3124MV utilizes the same microphone preamp circuit that is used in all API consoles. It uses the RE-115 K mic input transformer along with the same output transformer that is used in API equalizers.

Microphone / Instrument / Line Preamp Microphone preamp with 65 dB gain, Line and instrument pre-amplification with 45 dB gain, Button for 3: 1 output transformer, LED VU meter, 20 dB Pad switch, Output volume control,

Track and mix with full-circuit emulations of API’s iconic 550A and 560A for accurate, end-to-end modeling of these revered EQs. Learn more. the API® 500 Series EQ Collection gives you stunningly accurate, end-to-end modeling of these revered EQs. Now You Can: Then I got an API 512c preamp, and I loved its sound. So, I gave these

Oct 07, 2015 · Imitation is the sincerest form of flattery, part 1 Posted by flyingeyepro on October 7, 2015 July 22, 2016 Radically rebuilding a PM2000 input strip to more closely match the great API 312 microphone preamp and 553 equalizer.

They are also available fully assembled and tested as an add-on option for CAPI’s preamp kits. This opamp circuit is a modern component interpretation of API’s mid 1970’s Huntington era 2520 and operates on bi-polar +/- 12VDC to +/- 20VDC power supply voltages.

Classic Audio VP312. The VP312 is a clone of the vintage API 312 mic preamp. It is about as close to the original 312 as you can get right now, and at this price it is seriously unbeatable.