From the company that
brought to you the first of the Jolida tube amp
modifications (yes, we are the originals), Response Audio
now has updated the Special Edition modifications to include
further attention to the power supply and other aspects to
take them to the next level once again.
Anybody can change tubes and add a few things here and
there. What you get with the Signature Modification is
basically a complete rebuild using only the best internal
components based on critical evaluation and testing. Plus,
no matter how old your unit is, we offer a full 5 year
warranty on our work.
Why spend your hard earned money on a new amp that could set
you back thousands of $$$$. Transform your Jolida 302, 502
or 801 "A" or "B" Series amplifier into something that will
compete with many of today's high dollar pieces for a
fraction of their cost. You will think you just purchased a
brand new amp and still have money left over for further
system upgrades.
The reviews and customer feedback says it
all. Check out our
Feedback Pages as well as the review of our
Bella
EXtreme 3205 amplifier at EnjoyTheMusic.com. If you have
your 302/502 upgraded with the Signature Modifications, you
will end up with the same unit as reviewed.
The Platinum upgrade brings
you to the same level as out Bella
EXtreme 3205 Platinum that was debuted at RMAF07. Check out
the show reports
HERE
We now incorporate some new modifications to the power
supply on the 302, 502, and 801. What this means for the end
product is much better dynamics, headroom and control in the
lower frequencies providing a fuller presentation.
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Audience AuriCap
capacitors used in the coupling positions on Signature
units. SoniCap Platinum Teflon capacitors used for
"Platinum" modifications..
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SonicCraft SoniCap
Gen 2 capacitors used at signal ground locations
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Power Supply
filter capacitors upgraded to higher capacitance / lower
ESR Panasonic units
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High voltage
bypass capacitors used in power supply bypass
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Dale/Vishay 1 watt
1%, non-magnetic metal film resistors used throughout
the signal path. We have chosen 1 watt units over
original .5 watt for a quieter operation.
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Carbon Comp
resistors used at grid stop location on Signature units.
Mills non-inductive resistors used in Platinum
modifications.
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Dale/Vishay 5
watt, 1% non-magnetic resistors used for cathode ground.
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Dale/Vishay 3 watt
1%, non-magnetic resistors used in bias stage for lower
noise and also allowing for biasing range to accommodate
EL34, 6550, KT88 output tubes ON NON RC UNITS ONLY
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Fairchild "Ultra
Fast - Soft Recovery" diodes are utilized in the power
supply rectifying stage for lower noise floor and
quieter background.
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Alps Blue stereo
volume control or dual mono Carbon based volume controls
utilized on older units.
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Internal wiring
upgraded to either 22 awg. high quality copper or 22 awg
high quality silver plated copper. On older "A"
Series amplifiers
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RCA input jacks
upgraded to higher quality units on older "A" series
amplifiers.
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Balance control
bypassed.
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OPTIONAL: Bybee
Quantum Purifiers utilized in the B+ voltage. One pair
required $200 installed.
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High quality
silver solder used throughout.
-
Biased and bench
tested for 2 hours
-
Minimum 12 hour
system tested
-
Labor 5 hours
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Warranty: Limited
1 year parts & labor on replacement parts only.
-
Click here to read our warranty
PRICING:
Newer models with silver face plates
Signature: $650 + return shipping
Platinum: $750 + return shipping
PRICING:
Older models ("A" series and older "B" series with gold
faceplates)
Signature: $675 + return shipping
Platinum: $775 + return shipping
PRICING: $599 if unit is built as straight power amp. All
models.
Click
HERE for recommended upgrade tubes
