Open Door
25-06-2017, 22:29
I can despec to drop price if an option.
PRICE DROP FROM £SOLD to £SOLD! Collected or meet nearby.
Jolida JD9 Mk2 valve tube phonostage with factory Upgrade 1 and then additional mega mods
In excellent condition with original box and manual. 2 very minor minor marks unnoticeable- see new photos further down tread.
Latest variation of this well known and reviewed phono stage. While based on the prior circuit, the newer version has a larger power supply, the addition of a robust voltage regulator, upgraded output capacitors (not applicable here) and changes to the resistor arrays.
The Upgrade 1 is an option that Jolida carry out themselves being an extra addition of a resistor array to the input and driver tubes (plus better caps and tubes which is not applicable as you will read below). Jolida charge $250 extra for this mod.
So in addition to this, much more has been done:
Power Supply:
1) 100uF Rubycon electrolytic capacitor now a Mundorf M-Lytic HV and bypassed with a ModWright M Series.
2) 22uF Rubycon electrolytic capacitor now a Jantzen film type :)
3) 2 x 1000uF Rubycon electrolytic capacitors now Nichicon FG bypassed with Vishay MKP1837
4) HiFi Tuning Silver Star fuse
5) Furutech gold plated IEC mains input
Output:
1) Output capacitors are now of the very best - Deulund RS Copper Foil
2) Output tubes now Raytheon CK5755 - matched pair with adaptors. Tube dampeners are Herbies UltraSonix RX types imported from the USA
3) DC filter capacitor now ModWright M Series
4) Output wire is now pure cast silver silver PTFE wrapped with screen and drain wire.
5) Output RCA sockets now WBT Next Gen gold over copper (low output set removed as more for USA market with ultra high gain preamps)
Input:
1) RCA sockets now silver plated types
2) Larger earth post fitted
3) 6 op-amps now Sparkos (big upgrade)
Other:
1) Feet now are Herbies Tenderfoot (soft) which absorb micro and macro vibrations (imported from the USA)
2) Some Sound Coat dampening applied to chassis
3) All solder used for mods was the Audio Note 6%
Sounds amazing - very dynamic, detailed and smooth.
Prefer to meet up or collection. Happy to demo.
£SOLD bargain
Some details on spec:
Frequency Response: 5Hz to 110KHz, (+/- 1 dB)
SNR: > 100 dB
Distortion THD: Less than .01%
Input Impedance: 100Kohms
Output Impedance: 600 ohms
Phono Stage:
MM: 60 dB, 5 mV
MC High: 75 dB, 0.5 mV – 1.5 mV
MC Low: 85 dB, 0.25 mV – 0.5 mV
Input Resistance: 100 ohm, 300 Ohm, 1Kohm, 47Kohm
Input Capacitance 47 PF, 100PF, 150PF, 220PF
Tube Complement: 2 pcs. 12AX7
Size: 17 in. (W) x 13 in. (D) x 2 in. (H)
Weight: 10 lbs
Lowest Rated sensitivity at .25 mV – 85 dB.
Low profile full body allows the unit to act as a base for your amplifier or turntable.
2062320624206252062620627
PRICE DROP FROM £SOLD to £SOLD! Collected or meet nearby.
Jolida JD9 Mk2 valve tube phonostage with factory Upgrade 1 and then additional mega mods
In excellent condition with original box and manual. 2 very minor minor marks unnoticeable- see new photos further down tread.
Latest variation of this well known and reviewed phono stage. While based on the prior circuit, the newer version has a larger power supply, the addition of a robust voltage regulator, upgraded output capacitors (not applicable here) and changes to the resistor arrays.
The Upgrade 1 is an option that Jolida carry out themselves being an extra addition of a resistor array to the input and driver tubes (plus better caps and tubes which is not applicable as you will read below). Jolida charge $250 extra for this mod.
So in addition to this, much more has been done:
Power Supply:
1) 100uF Rubycon electrolytic capacitor now a Mundorf M-Lytic HV and bypassed with a ModWright M Series.
2) 22uF Rubycon electrolytic capacitor now a Jantzen film type :)
3) 2 x 1000uF Rubycon electrolytic capacitors now Nichicon FG bypassed with Vishay MKP1837
4) HiFi Tuning Silver Star fuse
5) Furutech gold plated IEC mains input
Output:
1) Output capacitors are now of the very best - Deulund RS Copper Foil
2) Output tubes now Raytheon CK5755 - matched pair with adaptors. Tube dampeners are Herbies UltraSonix RX types imported from the USA
3) DC filter capacitor now ModWright M Series
4) Output wire is now pure cast silver silver PTFE wrapped with screen and drain wire.
5) Output RCA sockets now WBT Next Gen gold over copper (low output set removed as more for USA market with ultra high gain preamps)
Input:
1) RCA sockets now silver plated types
2) Larger earth post fitted
3) 6 op-amps now Sparkos (big upgrade)
Other:
1) Feet now are Herbies Tenderfoot (soft) which absorb micro and macro vibrations (imported from the USA)
2) Some Sound Coat dampening applied to chassis
3) All solder used for mods was the Audio Note 6%
Sounds amazing - very dynamic, detailed and smooth.
Prefer to meet up or collection. Happy to demo.
£SOLD bargain
Some details on spec:
Frequency Response: 5Hz to 110KHz, (+/- 1 dB)
SNR: > 100 dB
Distortion THD: Less than .01%
Input Impedance: 100Kohms
Output Impedance: 600 ohms
Phono Stage:
MM: 60 dB, 5 mV
MC High: 75 dB, 0.5 mV – 1.5 mV
MC Low: 85 dB, 0.25 mV – 0.5 mV
Input Resistance: 100 ohm, 300 Ohm, 1Kohm, 47Kohm
Input Capacitance 47 PF, 100PF, 150PF, 220PF
Tube Complement: 2 pcs. 12AX7
Size: 17 in. (W) x 13 in. (D) x 2 in. (H)
Weight: 10 lbs
Lowest Rated sensitivity at .25 mV – 85 dB.
Low profile full body allows the unit to act as a base for your amplifier or turntable.
2062320624206252062620627