SPL Frontliner Modular Recording Channel - Manual (Page 27)

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Frontliner
Please note that you can order products with optional equipment from all dealers, even if they
do only list standard product versions, for example in an online store. Please contact your
dealer or SPL before you place an order. Optional equipment can also be installed after sales.
Available options for the Frontliner, model 2800:
• A/D converter (user installation possible). For details refer to the converter manual.
• Lundahl input and output transformers (installation only by qualified technicians or SPL).
Information on I/O transformers
We think a good part of the “warmth” that is commonly associated with vintage gear comes
from transformers. With transformers the low end and lower mids sound rounder, full-bodied
with more punch. The top end gets a silky touch and benefits from improved presence without
sounding boosted. Reasons are reduced odd harmonics (which produce harsh top end impres-
sions) and a slower characteristic compared to electronic stages which causes a more volumi-
nous sound. We recommend transformers especially for vocals while electronic stages can be
better for highest precision in signal transmission (transients), but in the end it’s a question of
personal taste, applications or for example which microphones are in use.
Used in SPL preamps or channel strips, the input transformers add ca. 14dB gain (depending
on the microphone). This must be added to the scaled values. The additional passive gain
relieves the complete unit permanently at any gain level. The higher gain levels are also
beneficial with ribbon microphones. That’s why the input transformer is more important in
preamps, but to benefit from all possible sonic effects and full operational safety, both input
and output should be equipped with transformers.
Options
A/D converter, I/O transformers