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ミュージックペダル Ampt ANALOGER ADG-1のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Ampt ANALOGER ADG-1 20 ページ。 100% analog bucket brigade delay

Technical Overview

Utilizing over 400 carefully selected components, the entire ADG-1 was

designed for a 100% analog signal chain. We began with a classic delay

architecture using a pair of Xvive™ MN3005 reissue BBDs and a step up

power supply to power our premium audio-grade op amps and high-

tolerance, non-microphonic capacitors, providing performance, temperature

stability, low noise and maximum headroom.

We then implemented a vintage-style compander with emphasis/de-

emphasis coupled with two discrete transistor, 5th-order, anti-aliasing and

reconstruction filters to provide a familiar character with superior clarity,

noise reduction and dynamic feel. The feedback circuit uses a voltage-

controlled transconductance amplifier, to provide classic, warm feedback

tone while offering an accurate method of dialing in infinite repeats

without runaway or for achieving total feedback overload.

The input preamplifier consists of a discrete, high impedance, JFET input

stage that can be used as an always-on buffer. The preamplifier circuit can

be used for gain matching or to overdrive the delay line and mixer section

for unique artifacts and character that only an analog delay can provide.

The analog clock generation, modulation, oscillator, and even the switch

logic are all fully analog. Our VCO with temperature compensated

exponential modulation drives the BBDs at extremely high current to

eliminate artifacts for a clear tight sound. An assignable Expression/CV

input expands the flexibility and control available to the user.

The ADG-1 was designed using a multi-layer PCB with dedicated split

power and ground planes for the lowest noise and cross talk. The power

input is fully protected from reverse polarity and over-voltage conditions.

Our MHz range, step up high voltage power supply is designed to eliminate

sources of noise and radio frequency interference (RFI/EMI) and the IE is

designed to protect from electrostatic discharge (ESD) spikes to ensure

carefree operation in any studio or performance environment.

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