1 3

HiFi ROSE

HiFi ROSE RA280

Integrated Amplifier (USED)

HiFi ROSE RA280

$2,295.00
$2,295.00
SALE Sold Out
Free shipping
Product questions? Found a lower price?
Let us know: 443-402-5055 or text us 443-402-5064.
Have a trade-in item? Click here.

Trade-in Form

Tell us about yourself

Tell us about your trade-in item(s)

Trade-in item 1
Any technical problems with this piece?
Any scratches, dents, discoloration, or other physical wear?
Do you have the original accessories (manual, remote, power cable, etc.)?
Do you have the original product packaging?

The HiFi ROSE RA280 is a stereo integrated amplifier built around the same Class AD topology as the flagship RA180. Instead of the silicon FETs used in a conventional Class D output stage, ROSE switches with gallium nitride (GaN) FETs, which cuts dead time to roughly a tenth of the usual figure and keeps the output linear. Two completely separate amplifier modules run as monoblocks, each rated 250 watts into 8 ohms and 250 watts into 4 ohms, fed by a 500 watt switching supply that uses silicon carbide FETs and a 2.5 kW power factor correction circuit.

Connections are all analog: one balanced XLR pair, three line level RCA inputs, a moving magnet phono input selected by a front switch, a mono subwoofer output and 12 volt triggers. The front panel carries illuminated analog level meters with a three level dimmer, bypassable bass and treble controls with 15 dB of adjustment, and a motorized volume knob that tracks the remote and the ROSE phone app. There is no DAC or streaming section inside, so a digital source such as a network streamer pairs with it over its analog inputs.

Specs
Type Stereo integrated amplifier, Class AD with GaN FET output stage
Amplifier modules Two completely separate mono modules, one per channel
Power output (FTC rating) 250 W x 2 into 8 ohms, 20 Hz to 20 kHz, THD 0.07%
Power output into 4 ohms 250 W x 2 (500 W total)
Frequency range 10 Hz to 80 kHz (8 ohms, 1 W)
Bandwidth 10 Hz to 66 kHz (+0, minus 1 dB), 10 Hz to 85 kHz (+0, minus 3 dB)
THD 0.05% (8 ohms, 1 W to 250 W, 1 kHz)
Damping factor Greater than 250 at the speaker output
Signal to noise ratio 109 dB balanced, 109 dB unbalanced, 85 dB phono (MM)
Output impedance 30 milliohms at the speaker output
Input sensitivity 600 mV balanced and line, 5 mV phono (MM)
Input impedance 47 kohms (line inputs)
Inputs 1 balanced XLR stereo, 3 line level RCA stereo, 1 RCA phono for moving magnet
Outputs Speaker binding posts, mono RCA subwoofer output (1 Vrms)
Tone controls Bass 100 Hz and treble 10 kHz, plus or minus 15 dB, active EQ, bypassable
Phono equalization RIAA, turnover 500 Hz, roll off 2.1 kHz
Power supply 500 W SMPS with silicon carbide FETs, 2.5 kW PFC, 600 W maximum output
Trigger 3.5 mm trigger input (3.3 V to 12 V) and 12 V trigger output
Remote 38 kHz infrared, effective to about 10 m, remote included
Input voltage AC 100 V to 240 V, 50/60 Hz, standby under 0.5 W
Chassis Solid aluminum with rust proof steel
Dimensions 16.9 in W x 13.98 in D x 4.06 in H
Weight 20.94 lbs

See pictures for condition. Comes with all original accessories. If you have any questions about the condition or what accessories are included, please give us a call.

View full details

Outlet Deals

View all

New Releases

View all

Accessories

1 4