CSPort GM70PA Stereo Power Amplifier

Name: CSPort GM70PA Stereo Power Amplifier
Brand: CSPort
SKU: 88468
Price: 25400.00 EUR
Availability: InStock

SKU: 88468 Category: Amplifiers Availability: Pre-order

25.400,00 €

Vacuum tube type stereo power amplifier with direct heating triode GM70. Plate voltage 1,050 V, output 30 W+30 W. No-feedback technology creates a three-dimensional effect and a sense of presence, and expresses a clear sound.

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Description

Vacuum tube GM70

Equipped with vacuum tube GM70 with Pp=125 W. With a plate voltage of 1,050 V, 30 W+30 W (4 Ω) and 20 W+20 W (8 Ω) output, it can drive low efficiency speakers.

*Two models with graphite plate and copper plate.

Two-stage with C3g

Equipped with the ultra-reliable C3g, developed by Deutsche Telekom for telephone repeaters. The thin grid lines and large distance between electrodes enable high linearity amplification. The C3g is soldered directly onto the board to reduce noise at the contact point.

Large output transformers

The large output transformer developed exclusively for this product is installed. Multi-layer sandwich winding drives both small and large signals over a wide bandwidth. Low winding resistance and drive capability, so it has a damping factor of more than 5 despite being a no-feedback amplifier.

Dual and bridge mode

It can be used as a bi-amp to drive high and low frequencies in dual mono mode with one additional unit, or in bridge mode to drive the output at 1.5 to 2x.

These modes are available only with XLR balanced input.

Dual mono mode	Two GM70PAs drive the mid-high and low of the speakers
Bridge mode	Two GM70PAs drive the Lch and Rch of the speakers

Output Power	Normal, Dual mono	30 W+30 W (4 Ω, THD5%)
	Normal, Dual mono	20 W+20 W (8 Ω, THD5%)
	Bridge	60 W (8 Ω, THD5%)
	Bridge	40 W (4 Ω, THD5%)
Frequency Response	20 Hz-30k Hz -2 dB/10 W
THD	Normal, Dual mono	0.7%/10 W
	Normal, Dual mono	0.2%/1 W
	Bridge	0.5%/10 W
	Bridge	0.1%/1 W
NFB	None
Signal to Noise Ratio	90 dB/1 W (20 Hz-20k Hz)
Crosstalk	40 dB/1 W (20 Hz-20k Hz)
Input Sensitivity	Normal, Dual mono	1 V/30 W (4 Ω)
	Normal, Dual mono	1 V/20 W (8 Ω)
	Bridge	1 V/60 W (8 Ω)
	Bridge	1 V/40 W (4 Ω)
Gain	21 dB
Input Terminal	Unbalanced x1, Balanced x1
Input Impedance	2.5k Ω/1k Hz
Mode Switching	By the rear rotary switch
Volume Adjustment	None
Damping Factor	2.8 (4 Ω)
Damping Factor	5.6 (8 Ω)
Power Supply	AC100/120/200/240 V, 50/60 Hz
Power Consumption	400 W
Dimensions	470W×201H×430D mm
Weight	27 kg
Finishing	Anodised aluminium
Accessories	AC cords
Warranty Period	5 years

CSPort GM70PA Stereo Power Amplifier