Aplificatorul Keces S300+ este varianta noua lansata in 2023, este nou, fara urme de uzura, si vine in cutia originala impreuna cu toate accesoriile originale. Are garantie 1 an. Este un amplificator foarte puternic, il vand deoarece am renuntat la boxele la care il aveam conectat. Ofer predare personala in Bucuresti, Ploiesti, Pitesti, sau trimit prin curier cu verificare colet, doar cu plata in avans.

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Change from the original S300 to S300+
Damping Factor: 1500 to 4000.
Upgraded internal material.
Upgraded speaker terminals to WBT-0703Cu.

All Features
2 OZ Copper PCB for Power Layer, Ground Layer and Signal Layer to get high damping factor and get more sound quality.
130 watts x2 at 8 ohm continuous output power / Maximum output power 240 watts x2 at 8 ohm
225 watts x2 at 4 ohm continuous output power / Maximum output power 300 watts x2 at 4 ohm
410 watts x1 at 8 ohm in bridge mode
High bias Class A/AB operation
5 watts per channel of pure Class A power at high bias setting
45 amperes peak current per channel
Stable with speaker impedance dips below 2 Ω
Operation model selection: Stereo, Bi-Amp, Bridged
Dual-mono design
Direct-coupled signal path, no capacitors or inductors
DC Servo and relay protection circuits
JFET input stage, MOSFET driver stage
1.2 kVA toroid power transformer with independent secondary windings for each channel
Independent power supplies for left & right channel input stages, driver. stages, output stages
65,600 µF Rubycon filter capacitors for output stages
Automatic turn-on by 12 V trigger
Neutrik locking XLR input connectors
Heavy-duty 24K gold-plated RCA input jacks
Heavy-duty 24k gold-plated 5-way speaker binding posts
AC turn-on inrush surge protection
Overload/Over Temperature Protection
The 4mm thickness of the aluminum chassis to effective to blocks EMI/RFI interference

Power Output
130 watts x2 at 8 ohm continuous output power
Maximum 240 watts x2 at 8 ohm
225 watts x2 at 4 ohm continuous output power
Maximum 300 watts x2 at 4 ohm
BTL: 410W x1 at 8 ohm

Power bandwidth
5Hz - 160kHz, +0/-3dB
10Hz - 20kHz, +0/-0.1dB

Current capacity
45 amperes peak per channel

Total harmonic distortion (THD+N)
0.04% at full power
0.004% at 60 watts

S/N R
110dB, input shorted, IHF A-weighted
101dB, input shorted, unweighted

Inter-channel Crosstalk
>100 dB at 1kHz
>82 dB at 20kHz

Gain
26 dB

Input sensitivity
Unbalanced: 1.6V
Balanced: 0.8V per leg

Input Impedance
Unbalanced: 50k ohm
Balanced: 100K ohm

Damping Factor
4000 at 20Hz

Power Requirment
Standby: 0.5 Watt
Maximum: 1000 Watts

Casing
All Aluminum

Dimension (WxDxH)
300x279x133mm

Weight
Net Weight 14KG
Shipping Weight 16KG