Musical Paradise MP-701 MK2 User Manual

Musical Paradise MP-701 Preamp User Manual

Input

MP-701 MK2 provides three RCA inputs (IN1, IN2 and IN3) and one XLR

input. XLR input shares with IN3 RCA input, so the user needs to choose

either XLR or RCA cable connected to IN3. Cannot connect both at the

same time to IN3. The input impedance of MP-701 MK2 is 100Kohm which

is an easy load for all kinds of source devices.

MP-701 MK2 provides two RCA outputs and one XLR output. They are

connected in parallel and shares the same audio signal output from the

tubes and coupling capacitor. For optimal result, the total impedance of

the connected devices must be higher than 10Kohm. For example, the

input impedance of a power amp is 100Kohm, and the impedance of an

active sub-woofer is 100Kohm. The total impedance drops down to

50Kohm.

MP-701 MK2 supports 6Z5P, 6X5, 5T4, 274B, 5AR4, GZ34, GZ33, 5R4, 5U4G

rectifier tubes.

When using 6Z5P and 6X5 rectifier tubes, S2 switch must be set to 6X5 position.

When using 5T4, 274B, 5AR4, GZ34, GZ33, 5R4, 5U4G rectifier tubes, S2 switch

must be set to 5AR4 position.

Table of Contents

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Page 1 Musical Paradise MP-701 Preamp User Manual Input MP-701 MK2 provides three RCA inputs (IN1, IN2 and IN3) and one XLR input. XLR input shares with IN3 RCA input, so the user needs to choose either XLR or RCA cable connected to IN3. Cannot connect both at the same time to IN3.
Page 2 Proper Gain Settings Different models of power amplifiers have different input sensitivity. A proper gain setting is important for optimal sound performance. MP-701 MK2 has built-in gain setting DIP switches for each channel. The default gain setting is 1 ON which provides the max output gain.
Page 3 Power Filtering Bypassing Capacitors Replacement These two capacitors can be removed or replaced with different types and capacitance of capacitors to achieve different sound characteristics by the user. Both don’t need to be same. For example, one is 4.7uf and another one is 0.1uf. The voltage of the capacitors must be 350V or higher.
Page 4 Warning High voltage inside. Always unplug power cord before changing tubes inside. Don’t touch circuit traces, capacitor leads and resistor leads. Capacitors can still hold some electric charge after power off.