Pro-Ject Amp Box RS2 | Stereo power amplifier

Name: Pro-Ject Amp Box RS2 | Stereo power amplifier
Brand: Pro-ject
Price: 1749.00 CHF
Availability: BackOrder

Reference 73922

CHF1,749.00 Tax included

Supplier stock – typically 4 to 7 days

Pro-Ject Amp Box RS2, a high-end, fully discrete class AB stereo power amplifier with a tube input stage. It delivers 2 x 130 W into 4 ohms or 280 W in bridged mono.

Color : Black

Black
Silver

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Supplier delivery time usually 4 to 7 days

Description
Product Details

Silver amplifier next to its linear power supply in a dark room

Fully discrete class AB

The Amp Box RS2 uses Pro-Ject's reference design for its high-end power amplifiers. Its fully discrete class AB circuit combines fidelity, low distortion and good efficiency. It delivers 2 x 130 W into 4 ohms and 2 x 80 W into 8 ohms, with 2 x 160 W peak.

Close-up of the black top with the two tubes

Tube input buffer

Like the other RS units, the Amp Box RS2 uses a tube buffer at its input. It accepts one balanced XLR pair and one RCA pair, with 27 dB of gain. Signal-to-noise ratio reaches 100 dBV A-weighted, and distortion stays below 0.08% at 20 W into 4 ohms.

Silver inside view of the circuits and heat sinks

Stereo or bridged mono

The amplifier works in stereo or switches to bridge mode to become a 280 W mono block into 8 ohms, 350 W peak. The gold-plated terminals accept 4 mm banana plugs, spades or bare wire. An RS232 port allows control within an installation.

Silver rear panel with XLR, RCA inputs and speaker terminals

Metal case and power supply

The all-metal case also plays a part in dissipating heat. It measures 20.6 x 8.5 x 20 cm and weighs 2.66 kg, in black or silver. The Power Box RS2 Amp linear power supply, sold separately, adds up to 25% more power.

Black = Black; Silver = Silver

Reference 73922

Data sheet

Product Type: Power Amplifier
Features: Depth including sockets: 227 mm
Gain: 27 dB
Input impedance: RCA 47 kohms / XLR 20 kohms
Input stage: tube buffer
Noise floor: -73 dBV (-76 dBV A-weighted)
Outboard power supply: ±40 V / 5 A DC, 100 - 240 V, 50/60 Hz
Peak power: 2 x 160 W / 100 W at 4 / 8 ohms, bridged: 350 W at 8 ohms
Speaker outputs: 4 mm banana plugs, spades or bare wire
Brand: Pro-Ject
Analog inputs: 1 pair RCA, 1 pair XLR
Output power: 2 x 130 W / 80 W at 4 / 8 ohms (1% THD), bridged: 280 W at 8 ohms
Color: Black
Silver
Connections: RS232 on pluggable 3-pin terminal block
Amplification technology: Class AB
Signal-to-noise ratio: 97 dBV (100 dBV A-weighted)
Power consumption: Less than 0.5 W in standby
Frequency response: 20 Hz - 20 kHz (-0.2 dB)
Séparation des canaux: -58 dB at 10 kHz at 4 ohms
Distortion (THD): less than 0.08% at 20 W / 4 ohms
Width: 20.6 cm
Depth: 20.0 cm
Height: 8.5 cm
Unit weight: 2.66 kg