Amplifiers with additional speaker connect

preamplifier, concert, channels: 2, inputs: RCA 1 pairs, Gain Control, 44 mm

preamplifier, tube, concert, channels: 2, Gain Control, external power supply, 45 mm

preamplifier, tube, concert, channels: 1, Gain Control, external power supply, 45 mm

preamplifier, tube, concert, channels: 1, Gain Control, external power supply, 50 mm

preamplifier, tube, concert, channels: 1, Gain Control, external power supply, 50 mm

preamplifier, tube, channels: 1, Gain Control, external power supply, 61 mm

integral, channels: 2, per channel 8Ω 100 W, per channel 4Ω 1400 W, inputs: RCA 1 pairs, external power supply, 68 mm

integral, channels: 2, per channel 8Ω 85 W, per channel 4Ω 125 W, dumping: 160, inputs: Main RCA, RCA 6 pairs, 70 mm

integral, channels: 2, per channel 8Ω 40 W, inputs: optical, USB, RCA 6 pairs, Gain Control, 73 mm

preamplifier, channels: 2, inputs: RCA 6 pairs, Gain Control, 73 mm

integral, channels: 2, inputs: optical, USB, RCA 6 pairs, Gain Control, 75 mm

amplifier, channels: 2, per channel 8Ω 70 W, inputs: Main RCA, 75 mm

integral, channels: 2, inputs: optical, USB, RCA 6 pairs, Gain Control, 75 mm

integral, channels: 2, per channel 8Ω 75 W, per channel 4Ω 115 W, dumping: 100, inputs: Main RCA, RCA 5 pairs, Phono MC, 80 mm

preamplifier, tube, concert, channels: 2, Gain Control, external power supply, 88 mm

integral, channels: 2, per channel 8Ω 50 W, dumping: 140, inputs: RCA 5 pairs, Bluetooth, 93 mm

integral, channels: 2, per channel 8Ω 60 W, dumping: 220, inputs: optical, USB, RCA 4 pairs, Bluetooth, 93 mm

integral, channels: 2, per channel 8Ω 120 W, per channel 4Ω 200 W, dumping: 300, inputs: optical, RCA 2 pairs, Bluetooth, 100 mm

integral, channels: 2, per channel 8Ω 40 W, per channel 4Ω 55 W, dumping: 100, inputs: optical, RCA 4 pairs, 105 mm

integral, channels: 2, per channel 8Ω 45 W, per channel 4Ω 60 W, dumping: 100, inputs: optical, RCA 4 pairs, 105 mm

amplifier, channels: 2, per channel 8Ω 140 W, per channel 4Ω 220 W, dumping: 110, inputs: Main RCA/XLR, 105 mm

integral, channels: 2, per channel 8Ω 40 W, per channel 4Ω 55 W, dumping: 100, inputs: RCA 5 pairs, 105 mm

integral, channels: 2, per channel 8Ω 50 W, per channel 4Ω 85 W, inputs: optical, RCA 4 pairs, Phono MC, 122 mm

integral, channels: 2, per channel 8Ω 70 W, per channel 4Ω 100 W, dumping: 100, inputs: Main RCA, RCA 5 pairs, 128 mm