Upgrades

The following is a list of upgrades we've installed in the past.
We're no longer offering upgrade services but are able to service machines we upgraded.
If you need service, please email dougoade at yahoo.com or submit a question via the website.
Product Image Item Name Price+
Marantz PMD661, MKII & MKIII FET MOD

Marantz PMD661, MKII & MKIII FET MOD

The Marantz PMD 661, MKII & MKIII FET MOD upgrade rebuilds the XLR inputs using very high speed, very low noise and low distortion FET op amps that...
$145.00
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Edirol UA5 Warm + Digi MOD

Edirol UA5 Warm + Digi MOD

Install Warm + Digi MOD in Edirol UA5. Verify proper operation. Price includes return shipping and insurance in the 48 states.
$150.00
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Fostex FR2LE Basic MOD

Fostex FR2LE Basic MOD

The FR-2LE Basic MOD replaces the stock NJM 2122 preamp op amps with higher speed, lower noise and distortion FET op amps for enhanced performance...
$150.00
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Fostex FR2LE Concert MOD

Fostex FR2LE Concert MOD

The FR-2LE Concert MOD upgrade rebuilds the XLR inputs using high speed, low noise and very low distortion op amps that dramatically improve fine...
$150.00
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Fostex FR2LE Warm MOD

Fostex FR2LE Warm MOD

Fostex FR2LE Warm MOD upgrade rebuilds the XLR inputs using high speed, low noise and very low distortion FET op amps that dramatically improve fine...
$150.00
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Grace Design V3

Grace Design V3

The Grace Design V3 MOD replaces the stock OP amps, AD712, on the A/D PC board using a new design with ultra low distortion, a high slew rate and...
$150.00
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Marantz PMD 620MKII Basic MOD

Marantz PMD 620MKII Basic MOD

The PMD 620MKII Basic rebuilds the PMD 620MKII mic preamp with a very low noise, high slew rate op amp that dramatically enhances detail and clarity...
$150.00
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Marantz PMD-661&MKII Plus MOD stand alone

Marantz PMD-661&MKII Plus MOD stand alone

Marantz PMD-661 & PMD-66MKII Plus MOD. This is an add on to an existing upgrade that is NOT installed at the same time as a standard upgrade or...
$150.00
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Tascam HD-P2 Basic MOD

Tascam HD-P2 Basic MOD

Tascam HD-P2 Basic MOD rebuilds the mic preamp sing very high slew rate op amps with ultra low THD for enhanced clarity and detail. Click here for...
$150.00
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Tascam HD-P2 Concert MOD

Tascam HD-P2 Concert MOD

Tascam HD-P2 Concert MOD upgrade rebuilds the microphone preamp using high speed, low noise and very low distortion op amps that dramatically improve...
$150.00
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