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This unit is supplied with a 230V AC power supply as standard. If you require a 110V input voltage, please select this using the switch on the underside of the unit before connecting it to the mains.
We're proud to present the Audiophonics LPA-S450ET, a Class D stereo power amplifier based on two Purifi 1ET6525SA modules. Electronically similar to the HPA-S450ET, this version is housed in a more compact case, making it easier to use in environments where space is at a premium, and its architecture also limits the length of internal connections.
This ready-to-install, ready-to-use model is aimed at audiophiles looking for a foolproof amplification solution, with considerable power reserves and impeccable definition. PURIFI modules are among the most rigorous Class D amplification solutions on the market, with measured performance that is simply outstanding.
The result is a high level of sound reproduction, suitable for use with demanding speakers, large listening rooms or studio applications requiring considerable headroom without compromising on the precision and richness of the audio message.
All components are housed in a sober, robust and compact aluminum case. It features openings to facilitate heat dissipation. Its design also limits the impact of interference on the signal.
The SMPS1200 switched-mode power supply is an ultra-high-efficiency model capable of developing a rated power of 1200 Watts in an extremely compact design. It has been specifically designed and developed by Hypex to supply the 2x64V voltage required to operate the most demanding amplifier modules.
This high-quality, low-noise power supply meets the power requirements of the amplifier modules in every respect. What's more, the modules themselves have an excellent ability to reject power supply noise. As a result, the LPA-S450ET is extremely insensitive to mains imperfections and voltage/current variations that can cause parasitic noise.
The 2 modules are controlled in phase opposition, to cancel the “Power-Supply Pumping” effect. This makes for greater power supply stability, alternately distributing current calls on each rail, thus increasing its capacity.
We opted for 2-level voltage regulation, 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 DIP8 socket, allowing them to be replaced if necessary.
To suit all uses, we have opted for 4 gain settings, selectable via jumper on the underside of the unit:
Designed for easy integration, the LPA-S450ET features both single-ended (RCA) and balanced (XLR) stereo inputs. Bipolar selectors make it easy to change input sources, and even allow independent control of channels.
At the output, BP-207 carbon / 24k gold insulated terminal blocks Ø5.5mm ensure an excellent connection with the speakers.
Technical characteristics
Specifications | |
---|---|
Product type | Power amplifier |
Inputs | 1x Balanced stereo XLR 1x Single-ended stereo RCA |
Outputs | 2x Speaker terminals |
Power | 2x230W @ 8Ω, 1%THD 2x450W @ 4Ω, 1%THD 2x510W @ 2Ω, 1%THD |
Total harmonique distorsion (THD+N) | 0.00035% @ PO=1W, f=1kHz 0.0001% @ PO=10W, f=1kHz 0.00005% @ PO=100W, f=1kHz 0.00035% @ PO=1W, f=20Hz-20kHz 0.00029% @ PO=10W, f=20Hz-20kHz 0.0001% @ PO=100W, f=20Hz-20kHz |
IMD (CCIF) | 0.0000003% @ PO=1W, f=18.5kHz+19.5kHz 0.0000006% @ PO=10W, f=18.5kHz+19.5kHz 0.0000005 % @ PO=100W, f=18.5kHz+19.5kHz |
IMD (DIM) | 0.002% @ PO=1W, DIM30 0.002% @ PO=10W, DIM30 0.009% @ PO=100W, DIM30 |
Idle Noise | 6.6µV (A-Weighted) |
Dynamic range | 137dB @ 4Ω (A-Weighted) |
SNR | 137dB @ 4Ω (A-Weighted) |
Frequency response | 20Hz - 20kHz ±0.01dB @ RL=8Ω 20Hz - 20kHz ±0.01dB @ RL=4Ω 20Hz - 20kHz ±0.01dB @ RL=2Ω |
Output impedance | Iout = 1A @ 0.03mΩ, 1kHz Iout = 1A @ < 0.35mΩ, 20Hz-20kHz |
Input impedance | RCA : 10kΩ XLR : 20kΩ |
XLR Input gain / sensitivity for max power at 1% THD | 12.5dB / 10.06Vrms 20dB / 4.24Vrms 25dB / 2.39Vrms 29dB / 1.51Vrms |
RCA Input gain / sensitivity for max power at 1% THD | 12.5dB / 5.03Vrms 20dB / 2.12Vrms 25dB / 1.24Vrms 29dB / 0.75Vrms |
General | |
---|---|
Power supply | 110-230V AC (230V par défaut) |
Dimensions (excluding connectors) | 19 x 35.9 x 7.8cm |
Weight | 3.17kg |
Housing material | Aluminum |
Color | Black |
Package | 1x Audiophonics LPA-S450ET 1x Power cord |
Input | XLR |
Input | RCA |
Output | Speaker terminal |
Color | Black |
Channel | 2 (Stereo) |
Class | Class D / T |
Amplifier chip | 1ET6525SA |
Power (W) | 450.0 |
Remote Control | No |