Bakoon Products PRE-5440 High End Preamp

The was developed as a preamplifier for use with . The circuit is a circuit that developed the PRE-5410 SATRI-IC, and the latest circuit HIBIK (I) -IC and HBFBC-IC introduced in the power AMP-5570 are adopted for input and output. HIBIK (I) -IC no longer needs to convert it to a current signal when a voltage signal comes in from a CDP etc. When the structure is simplified without a conversion process, the speed of the speech signal is faster and the distortion is reduced. The HBFBC-IC chip is a new generation buffer circuit that is proud of the Bacoon amplifier. Compared to the PRE-5410, the accuracy of the PRE-5440 is reliably improved by using HBFBC.

The front panel is an input switch with three UNBALANCED RCAs and two BALNACED XLRs. The red switch next to the volume is the mute switch. The display is a 9-digit blue LED with a CPU controller. When you release the input switch on the BALNACED XLR1, a bL1 is displayed in the display window, and the volume position is also displayed. The discrete digital attenuator is also PRE-5410, but the 5440 is even more accurate and has 0.5dB steps. Since it is built in PCB, it becomes a straight sound with no wiring, and the bandwidth widens. Preamplifier operation is controlled by CPU, attenuator attenuation amount, input, mute operation are displayed.

Digital Control Attenuator

The volume adjustment uses almost the same digital control attenuators used in conventional PRE-5410 MK3, but the main circuit and power and control parts are completely upgraded and designed. For the main circuit, the traditional highest-grade integrated chip SATRI-IC-UL is one for each channel, and the new HBFBC-IC is also used two for each channel. By modularizing each sector of preamplifier using two integrated chips, complex and large preamplifier circuits are installed in small spaces to ensure accuracy and stability. PRE-5440 is a super-precision attenuator that achieves an attenuator error within 0.1db.

New I/O system

This product bravely adopted XLR input and output to capture new high-end users. Instead of adopting XLR, current transmission (SATRI-LINK) was omitted. Although it is clear that current transmission is technically excellent,Bakoon ProductsYou can enjoy fusion with other amplifiers, and you can also enjoy sound quality changes with various RCA and XLR cables that were useless in SATRI-LINK. XLR adoption is a very big change of direction, but it is well received in the pre-released flagship AMP-5570 user base.

It supports three RCA inputs and two XLR inputs. The output of RCA and XLR is output at the same time, and the gain is completely identical, so a biamp connection can be made. XLR output is always used because only XLR input is possible when the AMP-5570 amplifier is used in a BTL specification mono. The width and width size is 44cm and 36cm same as the AMP-5570. As high as 10cm, 3cm higher than existing PRE-5410 MK3.

Maximum output	10V
Distortion (1KHz)	0.0077% /1V
S/N ratio	-120dB
Frequency Characteristics	10Hz~100KHz
Phase Characteristics	0° /20KHz
Dimensions	W440x H10x D360mm
Weight	5.1kg
Power Supply	100V/50,60Hz, 110V, 220V, 240V

*Bakoon ProductsThe logo and name will be changed to SCL (SATRI Circuit Laboratory). Thank you for your understanding.

When I was listening to AMP-5570 alone, I realized that the sound of the violin, which was thought to be just a "treble," was actually boeing at a very fast speed. This is the moment when so-called "audible sounds" can be heard. Drum beats like heart beats will definitely change. The sound image becomes a little smaller, but instead it feels like the blow feeling increases while the density increases. Since all sounds are clear, the whole stage is felt greatly. The sense of openness increases, the vocals become more vivid, and the energy is felt more. The overall center of gravity is also down. In fact AMP-5570 I did not feel that the center or pitch of the sound was high when driving alone, but when I added PRE-5440, there was room for the center of gravity to fall further. Low bass like kick drum goes down to the floor. 。 The main feature of the PRE-5440 is to expand the space. When you add PRE-5440, the drum sound spreads further and you can see that the drum sound spreads like a holographic image. I feel that the energy of the sound that comes out on the jazz saxophone (not the volume) has grown considerably. The center of gravity of the piano also decreased further and the sense of stability improved. The expressiveness of this energy, which can be called nuance and detail, is also PRE-5440 noteworthy point.