BUY WITH CONFIDENCE FROM A SEASONED AUDIOPHILE WITH 27+ YEARS OF PERFECT FEEDBACK!
AUDIOGON (SUNMOON -USERNAME), US AUDIOMART (SUNMOON59 USERNAME), DISTRIBUTOR / DEALER (HIGHRESHIFI) 

NEW AND ALMOST NEW OPEN BOX DEMOS AVAILABLE AT HIGHLY DESIRABLE PRICING!

CODA products are the hidden gems of high-end audiophile amplification without the outrageous pricing of the recognized brands, ONE OF THE BEST KEPT SECRETS IN HIFI!

CODA

Audiogon Discussion Forum - SIMPLY AMAZING: Coda Technologies 07x Preamplifier

PURCHASE WITH CONFIDENCE FROM A LONG TERM AUDIOGONER / DISTRIBUTOR / DEALER WITH 25+ YEARS OF PERFECT FEEDBACK!

HighResHiFi LLC is the EXCLUSIVE US DISTRIBUTOR OF FINAL AUDIO ELECTROSTATIC SPEAKERS and an AUTHORIZED ONLINE DEALER PARTNER of CODA TECHNOLOGIES, offering Coda amplifiers and preamplifiers exclusively paired with FINALs,

Coda products are PERFORMANCE POWERHOUSES that offer reference level amplification technologies at sensible real-world pricing, perfectly aligned with FINAL ELECTROSTATICS product strategy! 

They deliver exceptional performance and sound quality that is transparent, musical and dynamic, a revelation, surpassing the capabilities of many preamplifier and amplifier systems. 

DESIGN PHILOSOPHY

The circuitry used in the FET PREAMPLIFIER 07x is the result of an advanced and complete
design process combining innovation and prove fundamentals. This process avoids both the
limitations of total adherence to convention and the flaws resulting from inappropriate
applications of clever circuit gimmicks.

Impedance isolation and matching is derived from FETs.

While careful design can yield good
results from any device type, FETs consistently have the edge in voltage gain, low noise, low
interaction, and interface applications.
FETs are inherently transconductance devices, meaning that an input voltage controls an
output current. Unlike conventional transistors, FETs have extremely high input impedance
(about 10 meg ohm - similar to vacuum tubes). The FET "senses" the audio signal without
drawing current from the source. This eliminates complex interactions with the source, allows
maximum performance from each system element, and greatly reduces the chance of cable
characteristics altering the sound. The absence of input current in FETs allows high bias
currents for linearity and speed without sacricing DC parameters.

Noise is kept low by multiple paralleling of input devices, careful selection of circuit
impedances, and pre-screening of devices.

The Class A complimentary followers used to
drive the preamplifier output are of such speed, linearity, and low output impedance that no
feedback correction is required or used. The advantage of this is that the circuit's perfect
stability and transient response are preserved into a wide range of difficult and unpredictable
loads. Variation in sound, which could occur through interactions with interconnect cables and
other system elements are thus avoided.

Until recently, perfect volume controls (attenuators) did not exist. This is because
conventional stereo potentiometers have serious channel mistracking (20% typically),
become noisy with age, wear out, and have poor resolution of level - particularly when
operated by a motor as required for remote operation. In an attempt to solve these problems,
many manufacturers have been using "switched attenuators", which are discrete, resistor
ladders built on rotary switches. But while these eliminate channel mistracking, they introduce
new problems, including limited resolution, stepping transients, and cannot be operated
remotely. And they still wear out.
They limit resolution because the most contacts available on rotary switches are thirty-one.
This requires two or three dB steps in order to get enough range out of the attenuator, which
isn't a fine enough resolution for most listeners. Switched attenuators also introduce switching
transients (a "click" or "pop") each time they change positions.
This noise comes from two sources. The first is mechanical noise from the switch itself as its
ball-detent mechanism moves from detent to detent. But a more troublesome source is the
voltage difference caused by the change in the musical waveform during the time it takes the
switch to move from one position to the next. The greater the voltage difference, the louder
the transient.

DESIGN PHILOSOPHY

1. Finishes - All exterior and interior metal parts are anodized. While paint may be more
impact resistant, the anodized surface is more resistant to solvents and prevents corrosion.
Moreover, the anodized parts' appearance can be enhanced by either graining or bead-
blasting the surface.
2. Circuit Board - Circuit boards are fiberglass epoxy with gold plating over a tin/nickel barrier.
This gold layer will not corrode, while the barrier plate prevents the gold from migrating to the
lower copper layer and detracting from its appearance.
3. Resistors - All are high reliability metal film 1% resistors.
4. Capacitors - All capacitors are of high quality. The only electrolytics used are in the power
supply where large numbers provide enormous filtering capacitance for the supply.
5. Semiconductors - There are no integrated circuits (IC) to be found in the circuit path. Very
high quality dual FETs are the only source of voltage gain and were selected for their superb
noise performance and precision matching. The remaining semiconductors are also of very
high quality, each possessing parameters ideally suited for the specific application.
6. Connectors - Coda employs a standard RCA configuration with a gold plated case. The
balanced connectors are Neutriks from Switzerland.
7. Wire - All signal wire has been eliminated whenever possible. Where wire is used, Coda
employs silver plated copper, 141 strand, 18 gauge wire with a silicone insulation.

Coda products are highly regarded by the audiophile community and reviewers alike,

Refer to the rave reviews below;

Coda Technologies 16.0 Amplifier by Terry London

Coda no 16 amplifier | What's Best Audio and Video Forum. The Best High End Audio Forum on the planet!

Does anyone own the new Coda S5.5 amp? | What's Best Audio and Video Forum. The Best High End Audio Forum on the planet!

Coda Technologies Class A S5.5 Amplifier By Terry London

Coda Technologies Coda No. 8 Amplifier and 07x Preamplifier Review by Richard Willie

Audiogon Discussion Forum - The new Coda S5.5 amplifier: It's a "Petite Beast"!

Everything Audio Network: EAN Audiophile Review!CODA Technologies CSiBIntegrated Stereo Amplifier

Coda technologies NO 8 and no 16 | Audio Science Review (ASR) Forum

Coda Technologies Continuum No. 8 Stereo Amplifier - HomeTheaterReview

Audiogon Discussion Forum - Coda Csib V1 Integrated amp