RS451 Key Features (Pre-Order Discount)
Current Status: Delivefy by end of November.
HiFi Rose has included some serious technology from higher level streamers, while saving money by having a smaller screen and non-reference-grade power supply. Even so, you get a toroidal linear PSU and a high-precision femto clock, as well as balanced outs and dedicated headphone out.
The RS451 applies two ES9027PRO DACs on completely separated analog paths—one dedicated to the pre-out section and one to the headphone section—with independent power supplies and grounding to suppress interference and crosstalk. Each DAC uses a 4-channel parallel configuration per stereo output to push noise lower and dynamic range higher, locked to a highly precise femto clock.
The analog stage incorporates the ROSE NRA™ (Noise Reduction Analog) filter for a flat response down into the very low frequencies, preserving original signal information from high-resolution sources.
The headphone architecture uses four high-output amplifier ICs in a parallel configuration, delivering strong, stable drive into a wide range of loads, including high-impedance headphones exceeding 600 Ω. Front-panel XLR, 4.4 mm balanced, and 6.35 mm unbalanced jacks are provided, alongside rear balanced and unbalanced preamp outputs for system integration.
Processing is handled by the next-generation 8-core RK3588 (quad Cortex-A76 + quad Cortex-A55) paired with 8 GB LPDDR4X and 32 GB onboard eMMC, yielding roughly 4× general compute and 8× graphics performance over the previous platform.
This enables smooth browsing of very large libraries (on the order of 1 million tracks), bit-perfect playback up to PCM 32-bit/768 kHz and DSD512, and 4K/60 Hz HDR video via HDMI, while the 8.8" IPS capacitive touchscreen provides fast, direct control.
Features
- Dual ES9027PRO DACs — one for pre-out, one for headphones
- 4.4mm balanced, 6.35mm unbalanced, and XLR balanced headphone outputs
- Drives headphones up to 600Ω with low noise and precise impedance matching
- 8.8-inch LCD touchscreen (1920×480) with “Visible Audio” interface
- Compact aluminum chassis with engraved ROSE emblem
