Phoenix Gold TI2 Amplifiers Owners Manual

Amplifier Owner’s Manual

KEY FEATURES

A	BALANCED DIFFERENTIAL INPUTS
	Provides maximum rejection of unwanted noise from upstream
	components.
B	AUDIOPHILE NJM2068M OP-AMPS
	Most mobile amplifiers today use the standard NJM4558 op-amp which
	has a bandwidth of 3MHz, slew rate of 1V/uSec and noise level of 1.4uV.
	The NJM2068M is simply a better performer with a bandwidth of 19MHz,
	slew rate of 6V/uSec and noise level of .44uV.
	The result is quieter, faster and wider bandwidth performance that
	ensures the original music material is reproduced as accurately as
	possible.

C	ULTRA HIGH SPEED IR CLASS D CHIPSET
	State of the art IR20957 chipset switches at more than 300kHz
	for blistering audio performance. All four or five chipsets are
	sync’d together in unison to eliminate unwanted harmonics or
	distortion.

D POST FILTER FEEDBACK

Feedback is when part of the output signal is “fed back” into the original signal to ensure stability and accurate sound. Class D amplifiers use output filters (see the 4 vertical coils below), but most DO NOT INCLUDE these filters in the feedback loop. Ti2 amplifiers INCLUDE or take feedback after its passed through these filters. The result is more accurate sound that rivals some of the best class A/B amplifiers.

G E

D

C

B

E	ADAPT POWER MANAGEMENT SYSTEM
	Full power output from 11 to 15 volts: ADAPT delivers the same output
	power regardless of the vehicle’s electrical system voltage. Instantaneous or
	long term voltage drops have no effect on the amplifier’s power output. This
	means more dynamic and less distorted audio output.
	Dual power modes provide maximum efficiency: ADAPT seamlessly
	optimizes the power supply and Class D operating circuitry by adapting to
	the end user’s listening habits. When the ADAPT circuit senses lower signal
	levels, it will automatically optimize the amplifier’s power supply and Class
	D circuitry to a low power mode that maximizes efficiency and minimizes
	heat to almost zero. As a signal increase is detected the amplifier instantly
	shifts into a high power mode, where the power supply and Class D sections
	are now optimized to deliver massive power and headroom for those
	demanding listening sessions. The amplifier is constantly monitoring and
	adapting between these modes which results in higher overall efficiency,
	much lower operating temperatures and rock solid reliability.

F

A

F	THERMAL ROLLBACK CIRCUIT
	Under most conditions, Ti2 amplifiers generate moderate
	to low heat. However, if extreme conditions exist, as
	temperatures rise the amplifier will automatically adjust the
	power output, so your music continues to play. These changes
	are inaudible and vastly reduce the chance for any thermal
	shutdown events.

G	LOW EMI CIRCUIT BOARD DESIGN
	Most class D amplifiers can emit EMI noise that can cause
	problems with AM/FM reception or other devices in the
	vehicle. Ti2 amplifiers have undergone intense real world
	engineering and testing to vastly reduce or eliminate these
	issues. Careful PCB layout using four layers (most amplifiers
	feature just two) along with many key filters ensures a very
	low possibility of any interference issues.

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