The M-2500 monoblock power amplifiers are Allnic Audio’s top of the line, power tube flexible, pushpull monoblock power amplifier model. Like all Allnic Audio products, the M-2500s have Permalloy (iron and nickel alloy) for their transformer cores. Allnic is grateful to Mr. G.W. Elmen of Western Electric for inventing Permalloy for transformer core use, and in so doing, providing an enormous service to recorded music listeners everywhere.
The M-2500s use the superbly musical PX25, 300B or KT150 (customer’s choice on ordering) power tubes in push-pull configuration to provide the power that push-pull application facilitates but retaining the special musicality of the PX25/300B/KT150 tubes.
The M-2500s have the following features:
Analogue Power Tube Current Monitors.
In order to provide constant current (bias) monitoring for the power tubes, Allnic uses an analogue current meter that is switchable to provide extremely accurate monitoring of each PX25/300B/KT150 tubes. The meters make it exceptionally easy to see the status of each tube at any time and to respond immediately to any variation in bias by use of the bias control knob for the relevant tube. The meters offer a simple, unambiguous indication of each tube’s status compared to conventional LED bias monitors.
Output Power
PX25 : 20W Triode
300B : 30W Triode
KT150 : 100W Pentode
Distortion
0.01% at 1kHz at 10W
Frequency Response
20Hz to 50kHz flat
S/N Ratio
-100dB (CCIR, 1kHz)
Damping Factor
8 at 8Ω load at 1kHz
Voltage gain
less 0.03% +26dB
Input Impedance
100kΩ (single-ended, unbalanced)
Tubes
300B x 4, 12A4 x 4, 6485 x 2, 5U4G x 2
Fuses
3A/230V, 5A/120V
Dimension
440mm (W) x 370mm (D) x 260mm (H)
Weight
20kg