AUDIOPHONICS HPA-T450ET Power Amplifier 3 Channels Purifi 1ET6525SA

The Audiophonics HPA-T450ET power amplifier is based on a Class D architecture, using three Purifi 1ET6525SA amplification modules, a Hypex SMPS1200A400 power supply and an Audiophonics custom buffer stage, enabling the amplifier to deliver incredible performance. Like all Audiophonics Workshop products, this HPA-T450ET is meticulously designed and assembled by hand in our workshop in France.

The Audiophonics HPA-T450ET is a powerful, robust and high-performance amplification solution. It is capable of powering demanding HiFi audio systems, while revealing sound reproduction of incomparable finesse, rich in detail and perfectly transparent. There's no compromise here between power and sonic precision. The on-board Purifi modules feature a particularly rigorous design, delivering exceptional measured performance.

With its three channels, the HPA-T450ET is ideal for integrating into a home cinema system, providing power to both the front speakers and a centre channel or passive subwoofer.

All elements and components are integrated into a solid, sturdy aluminum housing with a modern, streamlined design. This chassis also features openings and side heat sinks for efficient heat dissipation. What's more, its design effectively limits the impact of interference on the audio signal.

Audiophonics HPA-T450ET: Proprietary buffer interface board

The three amplifier modules are driven in phase opposition to cancel the Power Supply Pumping effect. This makes for greater power supply stability, alternately distributing current calls on each rail and thus increasing its capacity. A two-level voltage regulation is used to optimize the power supply to the OPAs and the auxiliary voltage supplied to the modules. One Audiophonics OPA1656 OPA is used per channel. These are very low-distortion OPAs, offering the highest transparency with very low THD. They are mounted on a socket so they can be replaced if necessary.

In addition, a gain control is located on the underside of the unit to suit all applications. Four gain settings are available: 12.5dB, 20dB (default), 25dB and 29dB.

Audiophonics HPA-T450ET: Balanced & single-ended connectors

Designed for easy integration, the Audiophonics HPA-T450ET features both balanced inputs on XLR connectors and single-ended inputs on RCA connectors. Bipolar selectors on the rear of the unit allow easy selection of the active input, even enabling independent channel control. On the output side, insulated Audiophonics terminal blocks (developed in partnership with AEC Connectors) with 24k gold-plated contacts ensure an excellent connection between amplifier and loudspeaker. A 5-12V trigger module with input and output allows the amplifier to be integrated into an automatic on/off chain for your entire audio system.

With three channels, the HPA-T450ET can be used in both HiFi and home cinema systems. In the latter case, it is perfectly capable of powering two front speakers and a centre speaker or passive subwoofer.

1	ON/OFF button
2	Power input
3	5-12V trigger input
4	Speaker output
5	Speaker output
6	Speaker output
7	5-12V trigger output
8	XLR balanced input
9	Input selector
10	RCA single-ended input
11	XLR balanced input
12	Input selector
13	RCA single-ended input
14	XLR balanced input
15	Input selector
16	RCA single-ended input