Desired load is below 40 Ω. Consider using a primary-side load for very low target impedances.
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The MC1 Moving Coil Lundahl Step Up Transformer Preamp provides you with a moving coil SUT unit, built, tested and matched to your cartridge offering a range of Lundahl transformers and loading options to meet any need.
Features
Premium Lundahl transformers
High quality RCA connectors
Gold plated PCB
Selectable ground lift
Selectable step up gain
Configurable loading
High frequency load
Built and testedDelivery
We usually have stock of all variants of the MC1, however sometimes there may be a 4-8 week lead time on transformers from the factory. If in doubt send us an email.
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Lundahl Transformers Lundahl Transformers in the MC1
Transformer Category Model Step-Up Ratios Standard Transformer LL1678XL 1:16, 1:32 LL9226XL 1:10, 1:20 Nickel Core Transformer LL1963 1:3, 1:6 LL1933 1:8, 1:16 LL1943 1:16, 1:32 Amorphous Core Transformer LL1961 1:3, 1:6 LL1931 1:8, 1:16 LL1971 1:12, 1:24 LL1941 1:16, 1:32 Transformer Types
Standard Transformer
The standard transformer option use either the cutoms made LL1678XL for 1:16 & 1:32 step up ratios, or the LL9226XL for 1:10 & 1:20 step up ratios. Don't be fooled by the term "standard", these are still exceptional moving coil step up transformers.
Nickel Core Transformer
The Nickel Core option uses either the LL1963, LL1933 or LL1943 Lundahl transformer, depending on your gain requirements. It is available in 1:3 & 1:6 step up ratios (LL1963), 1:8 & 1:16 step up ratios (LL1933) or 1:16 & 1:32 step up ratios (LL1943).
The Nickel core transformers are a premium moving coil step up transformer and are a lower distortion alternative to the amorphous cores.
Amorphous Core Transformer
The Amorphous Core option uses either the LL1961, LL1931, LL1971, or LL1941 Lundahl transformer, depending on your gain requirements. It is available in 1:3 & 1:6 step up ratios (LL1961), 1:8 & 1:16 step up ratios (LL1931), 1:12 & 1:24 step up ratios (LL1971) or 1:16 & 1:32 step up ratios (LL1941).
The amorphous core transformers are probably the best moving coil SUT available on the market.
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Shipping Information Shipping & Import Tax Information
Good news: MC1 ships free globally from our workshop in the UK.
Region Delivery Time Import Taxes / Duties (Example on MC1: $450 ≈ £355) United Kingdom (UK) 2–4 business days No import taxes or duties European Union (EU) 3–7 business days Local VAT (≈20%) + clearance fees vary by country United States (US) 5–10 business days - Merchandise Processing Fee (MPF): 0.3464% of value
- → On $450: ≈ $1.56 (min $32.71 applies → you pay $32.71)
- Harbor Maintenance Fee (HMF, ocean freight only): 0.125% = $0.56
- Total Example Duty: ≈ $33.30 (≈ £26)
Australia 7–14 business days 10% GST + small clearance fee → On $450: ≈ $45 (≈ £36) Japan 7–10 business days Consumption tax 10% → On $450: ≈ ¥6,750 (≈ £36) Important Notes
- Delivery times are estimates and can vary due to carrier schedules and customs processing.
- Import taxes/duties are set by your local authority and are payable by the recipient.
- Values shown are examples for the MC1 ($450). Actual charges may vary slightly due to exchange rates and courier processing fees.
MC1 Load Calculator
Optimise your moving coil cartridge loading
Results
Required Resistor (Theoretical):
N/A
MC1 Resistor:
N/A
MC1 Input Z:
N/A
Voltage Gain:
N/A
Output Voltage:
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Instructions
- Select your transformer model and step-up ratio
- Enter your phono input impedance (default is 47kΩ)
- Enter the desired load impedance for your cartridge
- Optionally enter cartridge specs for gain predictions
- Click Calculate for loading recommendations
Notes:
When the desired load is below 40 Ω, you’ll see an advisory suggesting a primary-side load. Calculations still run normally.
"No resistor required" - Phono input already provides suitable load
Moving Coil Step Up Transformers explained
Unsure what exactly is going on? Read our blogs for a deep dive
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