• DD45 6ccm uses IEC60318-3 or NBS 9A coupler and RETSPL comes from PTB – DTU report 2009-2010.
Force 4.5N ±0.5N
• DD45 Artificial ear uses IEC60318-1 coupler and RETSPL comes from ANSI S3.6 2010 and ISO 389-1 1998.
Force 4.5N ±0.5N
• TDH50 6ccm uses IEC60318-3 or NBS 9A coupler and RETSPL comes from ANSI S3.6 2010. Force 4.5N
±0.5N
• TDH50 Artificial ear uses IEC60318-1 coupler and RETSPL comes from ANSI S3.6 2010 and ISO 389-1 1998
Force 4.5N ±0.5N
• HDA200 Artificial ear uses IEC60318-1 coupler with type 1 adaptor and RETSPL comes from ANSI S3.6 2010
and ISO 389-8 2004. Force 9N ±0.5N
• HDA300 Artificial ear uses IEC60318-1 coupler with type 1 adaptor and RETSPL comes from PTB report
2012. Force 8.8N ±0.5N